Energy

ENERGY EFFICIENCY AND RENEWABLE ENERGY Elements of an Energy-Efficient House You have much to consider when designing and building a new energy-efficient house, and it can be a challenge. However, recent technological improvements in building elements and construction techniques also allow most modern energysaving ideas to be seamlessly integrated into house designs while improving comfort, health, or aesthetics. And even though some energy-efficient features are expensive, there are others that many home buyers can afford.

While design costs, options, and styles vary, most energy-efficient homes have some basic elements in common: a wellconstructed and tightly sealed thermal envelope; controlled ventilation; properly DOE/GO-10200-1070 FS-207 July 2000 This house in Illinois has many energy-efficient features, including advanced framing techniques, insulated sheathing, and an advanced ductwork system. It was built by Town and Country Homes as part of DOE’s Building America Program. DEP A NT OF ME EN RT ST A AT E S OF M ER This document was produced for the U. S.

Department of Energy (DOE) by the National Renewable Energy Laboratory (NREL), a DOE national laboratory. The document was produced by the Information Services Program, under the DOE Office of Energy Efficiency and Renewable Energy. The Energy Efficiency and Renewable Energy Clearinghouse (EREC) is operated by NCI Information Systems, Inc. , for NREL / DOE. The statements contained herein are based on information known to EREC and NREL at the time of printing. No recommendation or endorsement of any product or service is implied if mentioned by EREC.

Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 20% postconsumer waste ICA Photo by Sara Farrar, NREL/PIX07134 CLEARINGHOUSE GY ER sized, high-efficiency heating and cooling systems; and energy-efficient doors, windows, and appliances. Thermal Envelope A thermal envelope is everything about the house that serves to shield the living space from the outdoors. It includes the wall and roof assemblies, insulation, air/vapor retarders, windows, and weatherstripping and caulking. Wall and Roof Assemblies Most builders use traditional wood frame construction.

Wood framing is a “tried and true” construction technique that uses a potentially renewable resource—wood— U N IT ED to provide a structurally sound, long-lasting house. With proper construction and attention to details, the conventional wood-framed home can be very energyefficient. It is now even possible to purchase a sustainably harvested wood. Foundation walls and slabs should be as well insulated as the living space walls. Some of the available and popular energyefficient construction methods include the following: Optimum Value Engineering (OVE).

This method uses wood only where it is most effective, thus reducing costly wood use and saving space for insulation. The amount of lumber has been determined to be structurally sound through both laboratory and field tests. However, the builder must be familiar with this type of construction to ensure a structurally sound house. Structural Insulated Panels (SIPs). These sheets are generally made of plywood or oriented-strand board (OSB) that is laminated to foam board. The foam may be 4 to 8 inches thick. Because the SIP acts as both the framing and the insulation, construction is much faster than OVE or stick framing.

The quality of construction is often superior because there are fewer places for workers to make mistakes. Insulating Concrete Forms (ICF). Houses constructed in this manner consist of two layers of extruded foam board (one inside the house and one outside the house) that act as the form for a steel-reinforced concrete center. It’s the fastest technique and least likely to have construction mistakes. Such buildings are also very strong and easily exceed code requirements for areas prone to tornadoes or hurricanes. Insulation An energy-efficient house has much higher insulation R-values than required by most local building codes.

An R-value is the ability of a material to resist heat transfer, and the lower the value, the faster the heat loss. For example, a typical house in New York might have insulation of R-11 in the exterior walls and R-19 in the ceiling, while the floors and foundation walls may not be insulated. A similar, but welldesigned and constructed house will have insulation levels that range from R-20 to R-30 in the walls and from R-50 to R-70 in the ceilings. Carefully applied fiberglass batt or rolls, wet-spray cellulose, or foam insulation will fill wall cavities completely.

Foundation walls and slabs should be as well insulated as the living space walls. Poorly insulated foundations have a negative impact on home energy use and comfort, especially if the family uses the lower parts of the house as a living space. Also, appliances—such as domestic hot water heaters, washers, dryers, and freezers— that supply heat as a byproduct are often located in the basement. By carefully insulating the foundation walls and floor of the basement, these appliances can assist in heating the house. While most new houses have good insulation levels, it is often poorly installed.

In general, gaps and compaction of insulation reduce its effectiveness. Photo by Craig Miller Productions, NREL/PIX02452 Air/Vapor Retarders Water vapor condensation is a major threat to the structure of a house, no matter what the climate. In cold climates, pressure differences can drive warm, moist indoor air into exterior walls and Workers install a structural insulated panel. 2 This house in Arizona features a passive solar design with overhangs above the south facing windows. The best windows are awning and casement styles because these styles often close tighter than sliding types. ttics. The air condenses as it cools. The same can be said for southern climates, just in reverse. As the humid outdoor air enters the walls and encounters cooler wall cavities, it condenses into liquid water. This is the main reason why some buildings in the South have problems with mold and rotten wood after they’re retrofitted with air conditioners. A vapor retarder is a material or structural element that can be used to inhibit the movement of water vapor, while an air retarder can inhibit airflow, into and out of a house’s envelope.

How to design and install vapor retarders depends a great deal on the climate and on the chosen construction method. However, any water vapor that does manage to get into the walls or attics must be allowed to escape. Regardless of climate, water vapor migration should be minimized by using a carefully designed thermal envelope and sound construction practices. Systems that control air and water vapor movement in homes rely on the nearly airtight installation of sheet materials on the interior as the main barrier. The Airtight Drywall Approach (ADA) uses the drywall already being installed along with gaskets and caulking to create a 3 ontinuous air retarder. In addition, seams where foundation, sill plate, floor joist header, and subfloor meet are also carefully sealed with appropriate caulk or gasket material. Consult your local building codes official on the best vapor retarder method to use in your area. Windows The typical home loses more than 25 percent of its heat through windows. Even modern windows insulate less than a wall. Therefore, an energy-efficient house in a heating-dominated climate should, in general, have few windows on its northern, eastern, and western sides.

Total window area should also not exceed 8 to 9 percent of the floor area for those rooms, unless the designer is experienced in passive solar techniques. If this is the case, then increasing window area on the southern side of the house to about 12 percent of the floor area is recommended. This is often called solar tempering. A properly designed roof overhang for south-facing windows will help prevent overheating in the summer. North, east, Photo by Sara Farrar, NREL/PIX08155 and west windows should have low Solar Heat Gain Coefficients (SHGC).

South windows with properly sized overhangs should have a high SHGC to allow winter sun (and heat) to enter the house. The overhang blocks the high summer sun (and heat). If properly sized overhangs are not possible, a low SHGC glass should be selected for the south windows. At the very least, you should use windows (and doors) with an Energy Star® label, which are twice as energy efficient as those produced 10 years ago, according to regional, climatic guidelines (note: houses with any kind of solar tempering have other guidelines).

The best windows are awning and casement styles because these often close tighter than sliding types. In all climates, window glass facing south without overhangs can cause a problem on the cooling side that far exceeds the benefit from the winter solar gains. when compared to other houses of the same type and age. You can accomplish most air sealing by using two materials: caulking and weatherstripping. Caulking can be used to seal areas of potential air leakage into or out of a house. And weatherstripping can be used to seal gaps around windows and exterior doors.

Controlled Ventilation Good air sealing alone may reduce utility costs by as much as 50 percent. Since an energy-efficient house is tightly sealed, it needs to be ventilated in a controlled manner. Controlled, mechanical ventilation prevents health risks from indoor air pollution, promotes a more comfortable atmosphere, and reduces air moisture infiltration, thus reducing the likelihood of structural damage. Furnaces, water heaters, clothes dryers, and bathroom and kitchen exhaust fans expel air from the house, making it easier to depressurize an airtight house if all else is ignored.

But natural-draft appliances may be back-drafted by exhaust fans, which can lead to a lethal buildup of toxic Weatherstripping and Caulking You should seal air leaks everywhere in a home’s thermal envelope to reduce energy loss. Good air sealing alone may reduce utility costs by as much as 50 percent Ceiling light fixture Electrical wires penetrating vapor barrier Joints at attic hatch Vents from bathroom and kitchen Joints at interior partitions Joints between wall and ceiling Joints at windows Electric meter Electrical service entrance Electrical panel Electrical outlets and switches

Plumbing stack penetration Chimney penetration of ceiling Holes through air-vapor barrier Joint between bottom plate and floor Cracks around doors Joint between joists and basement wall Service entrance for cable TV, telephone, fuel, etc. Air leakage can occur in many places throughout a home. 4 Heating and Cooling Systems Stale room air return Specifying the correct sizes for heating and cooling systems in airtight, energy-efficient homes can be tricky. Rule-of-thumb sizing is often inaccurate, resulting in wasteful operation.

Conscientious builders and heating, ventilation, and air-conditioning contractors size heating and cooling equipment based on careful consideration of the thermal envelope characteristics. Outside air inlet Fresh air supply Air-to-air heat exchanger Exhaust air Heat recovery ventilation. Generally, energy-efficient homes require relatively small heating systems, typically less than 50,000 Btu/hour even for very cold climates. Some require nothing more than sunshine as the primary source of heat along with auxiliary heat from radiant in-floor heating, a standard gas-fired water heater, a small boiler, a furnace, or electric heat pump.

Any common appliance that gives off “waste” heat can also contribute significantly to the heating requirements for such houses. If an air conditioner is required, it’s often a small unit and sufficient for all but the warmest climates. Sometimes only a large fan and the cooler evening air are needed to make the house comfortable. The house is closed up in the morning and stays cool until the next evening. Smaller-capacity heating and cooling systems are usually less expensive to buy and operate.

This helps recover the costs of purchasing more insulation, and other energy-efficient products, such as windows and appliances. Always look for the EnergyGuide label on heating and cooling equipment. The label will rate how efficient it is as compared to others available on the market. In climates where summer cooling requirements dominate, light-colored materials and coatings (paint) on the exterior siding and roof can help reduce cooling requirements by up to 15 percent. Carefully selected and placed vegetation in any climate also contributes to reduced cooling and heating loads. ases in the house. For this reason, sealedcombustion heating appliances, which use only outside air for combustion and vent combustion gases directly to the outdoors, are very important for ventilation energy efficiency and safety. Heat recovery ventilators (HRV) or energy recovery ventilators (ERV) are growing in use for controlled ventilation in airtight homes. These ventilators can salvage about 70 percent of the energy from the stale exhaust air and transfer that energy to the fresh air entering by way of a heat exchanger inside the device.

They can be attached to the central forced air system or may have their own duct system. Other ventilation devices, such as through-the-wall or “trickle” vents, may be used in conjunction with an exhaust fan. They are, however, more expensive to operate and possibly more uncomfortable to use because they have no energy recovery features to precondition the incoming air. Uncomfortable incoming air can be a serious problem in northern climates and can create moisture problems in humid climates. Therefore, this ventilation strategy is only for arid climates.

Other systems pull outside air in with a small outside duct on the return side of the furnace. Generally, energyefficient homes require relatively small heating systems. 5 Energy-Efficient Appliances Higher efficiency appliances provide a measure of insurance against energy prices and emit less air pollution. Appliances with relatively high operating efficiencies are usually more expensive to purchase. However, higher efficiency appliances provide a measure of insurance against increases in energy prices, emit less air pollution, and are attractive selling points when the home is resold.

Home buyers should invest in high-efficiency appliances—such as water heaters, clothes washers and dryers, dishwashers, and refrigerators—especially if these appliances will be used a great deal. Because all major appliances must have an EnergyGuide label, read the label carefully to make sure you buy the most efficient appliance. To help you choose wisely, major appliances with an Energy Star® label exceed the federal government’s minimum efficiency standards by a large percentage.

Energy-efficient lighting helps keep energy bills down by producing less heat and reducing cooling requirements. Fluorescent lighting, both conventional tube and compact, is generally the most energyefficient for most home applications. always done before. They may need more training if they have no experience with these systems. Building and Buying Before you start a home-building project, the building site and its climate should be carefully evaluated to determine the optimum design and orientation for the house.

There are energy-related computer software programs that can help with these evaluations. The design should accommodate appropriate insulation levels, moisture dynamics, and aesthetics. Decisions regarding appropriate windows, doors, and heating, cooling and ventilating appliances are central to an efficient design. Also the cost, ease of construction, the builder’s limitations, and local building code compliance should be competently evaluated. Some plans are relatively simple and inexpensive to construct, while others can be extremely complex and, thus, expensive.

An increasing number of builders are participating in the federal government’s Building America and Energy Star® Homes programs, as well as local home energy rating programs, all of which promote the construction of energy-efficient houses. Many of these builders construct energy-efficient homes to differentiate themselves from their competitors. Construction costs can vary significantly depending on the materials, construction techniques, contractor profit margin, experience, and the type of heating, cooling, and ventilation system chosen.

Because energy-efficient homes require less money to operate, many lenders now offer energy-efficient mortgages (EEMs). EEMs typically have lower points and allow for the stretching of debt-to-income ratios. State and local government energy offices can be contacted for information on region-specific financing. In the end, your energy-efficient house will provide you with superior comfort and lower operating costs, not to mention a higher real estate market value. The building site and its climate should be carefully evaluated to determine the optimum design. Advantages and Disadvantages

Houses that incorporate all of the above elements of energy efficiency have many advantages. They feel more comfortable because the additional insulation keeps the interior wall at a more comfortable and stable temperature. The indoor humidity is also better controlled, and drafts are reduced. A tightly sealed air/vapor retarder reduces the likelihood of moisture and air seeping through the walls. They are also very quiet because the extra insulation and tight construction helps to keep exterior noise out better. But these houses also have some potential disadvantages.

They may cost more and take longer to build than a conventional home if there’s a lack of builder familiarity with new construction techniques and products available on the market. Even though the house’s structure may differ only slightly from conventional homes, the builder and contractors may be unwilling to deviate from what they’ve 6 Resources The following are sources of additional information on energy-efficient houses: The Energy Efficiency and Renewable Energy Clearinghouse (EREC) P. O. Box 3048 Merrifield, VA 22116 1-800-DOE-EREC (1-800-363-3732) E-mail: doe. erec@nciinc. om Web site: http://www. eren. doe. gov/consumerinfo/ EREC provides free general and technical information to the public on many topics and technologies pertaining to energy efficiency and renewable energy. Lawrence Berkeley National Laboratory Building Technologies Department MS 90-3111 Berkeley, CA 94720 USA Phone: (510) 486-6845; Fax: (510) 486-4089 Web site: http://eetd. lbl. gov/btp/btp. html Provides information on past and current research in buildings energy efficiency. National Renewable Energy Laboratory The Center for Buildings and Thermal Systems 1617 Cole Blvd.

Golden, CO 80401 Web site: http://www. nrel. gov/buildings_thermal Provides information on energy-efficient buildings. Organizations American Solar Energy Society, Inc. (ASES) 2400 Central Avenue, G-1 Boulder, CO 80301 Phone: (303) 443-3130; Fax: (303) 443-3212 E-mail: ases@ases. org Web site: http://www. ases. org A national advocacy organization dedicated to the use of solar energy in buildings. Oak Ridge National Laboratory (ORNL) Buildings Technology Center P. O. Box 2008, MS-6070 Oak Ridge, Tennessee 37831-6070 Phone: (865) 574-5206; Fax Number: (865) 574-5227 Web site: http://www. ornl. ov/ORNL/BTC/ Provides information on research in buildings energy efficiency. Building America U. S. Department of Energy Office of Building Systems, EE-41 1000 Independence Avenue, SW Washington, D. C. 20585-0121 Web site: http://www. eren. doe. gov/buildings/ building_america/ Works with the home building industry to produce quality homes that use up to 50 percent less energy without costing more to build. Sustainable Buildings Industry Council (SBIC) 1331 H Street, NW, Suite 1000 Washington, DC 20005-4706 Phone: (202) 628-7400; Fax: (202) 393-5043 E-mail: sbic@sbicouncil. org Web site: http://www. bicouncil. org Promotes the use of energy-efficient and passive solar building design and construction. Web Sites Building Energy Software Tools U. S. Department of Energy Office of Building Technology, State and Community Programs Web site: http://www. eren. doe. gov/buildings/tools_ directory/ Describes many energy-related software tools for buildings, with an emphasis on renewable energy, and energy efficiency. Efficient Windows Collaborative Alliance to Save Energy 1200 18th Street NW, Suite 900 Washington, D. C. 20036 Phone: (202) 857-0666; Fax: (202) 331-9588 E-mail: award@ase. rg Web site: http:/ /www. efficientwindows. org/ Provides unbiased information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use. Cool Roof Materials Database Lawrence Berkeley National Laboratory Web site: http://eetd. lbl. gov/coolroof/ Assists with the selection of roofing materials that reflect instead of absorb the sun’s radiant energy. Energy Star® U. S. Department of Energy and U. S. Environmental Protection Agency Phone: (888) STAR-YES (1-888-782-7937) E-mail: info@energystar. gov Web site: http:/ /www. nergystar. gov/ Provides lists of Energy Star®-qualified products, including appliances and windows, as well as information on its energyefficient homes program. Green Buildings Center of Excellence for Sustainable Development Web site: http://www. sustainable. doe. gov/buildings/ gbintro. htm Provides information and links on energy-efficient buildings. (Continued on page 8) 7 Continued from page 7 The Residential Energy Efficiency Database Web site: http://www. its-canada. com/reed/ Provides a wide-range of information on energy-efficient houses, including house plans.

The Passive Solar Design and Construction Handbook, M. Crosbie (ed), J. Wiley, 1997. Available for purchase from ASES (see Resources). Residential Windows: A Guide to New Technology and Energy Performance, J. Carmody, S. Selkowitz, and L. Herschong, Norton Professional Books, 1996. Phone: 1-800-233-4830; http://www. wwnorton. com/npb/. Insulation Fact Sheet, U. S. Department of Energy Office of Energy Efficiency and Renewable Energy, 1997. Available from ORNL in PDF and HTML at http://www. ornl. gov/roofs+walls/insulation/. Print version is available from EREC (see Resources).

Zip Code Insulation Database Oak Ridge National Laboratory Web site: http://www. ornl. gov/~roofs/Zip/ZipHome. html Provides information by zip code on the most economic insulation levels for new or existing homes. Reading List The following publications provide further information about energy-efficient home elements. The list is not exhaustive, nor does the mention of any publication constitute a recommendation or endorsement. Periodicals Energy Design Update. Published by Cutter Information Corporation, 37 Broadway, Arlington, MA 02474-5552; Phone: (800) 964-5118 or (781) 648-8700; Web site: http:// www. utter. com. This monthly newsletter contains information for professionals interested in energyefficient building technologies. Product reviews appear regularly. Environmental Building News. 28 Birge Street, Brattleboro, VT 05301; Phone: (802) 257-7300; Web site: http://www. BuildingGreen. com. This bimonthly newsletter covers a wide variety of topics. The Journal of Light Construction. Published by Builderburg Partners, Ltd. , 932 West Main Street, Richmond, VT 05477; Phone: (800) 375-5981. This monthly journal often features articles on energy conservation techniques for the home builder.

Home Energy Magazine. 2124 Kittredge Street, #95, Berkeley, CA 94704; Phone: (510) 524-5405; E-mail: contact@homeenergy. org,; Web site: http://www. homeenergy. org/. It’s a source of information on reducing energy consumption in the home. Solpan Review. Published by Drawing-Room Graphic Services, Ltd. , P. O. Box 86627, North Vancouver, BC V71 412 , Canada; Phone (604) 689-1841. This bimonthly newsletter features articles on energy conservation for the building industry, including information on new products and energy-efficient practices in residential construction. Books, Pamphlets, and Reports

Buildings for a Sustainable America Case Studies, B. Miller, ASES, 1997. Available from ASES or SBIC (see Resources). Building Green in a Black & White World, D. Johnston, Home Builder Press, 2000; Phone: (800) 223-2665; http://www. builderbooks. com. Consumer Guide to Home Energy Savings, A. Wilson and J. Morrill, American Council for an Energy-Efficient Economy, 2000; Phone: (510) 549-9914; http://aceee. org/. The Efficient House Sourcebook, R. Sardinsky, Rocky Mountain Institute. Available from SBIC (see Resources). Energy Savers: Tips on Saving Energy and Money at Home, U.

S. Department of Energy. Available in PDF and HTML at http://www. eren. doe. gov/consumerinfo/energy_ savers/ or print version from EREC (see Resources). Fine Homebuilding: Energy-Efficient Houses, Fine Homebuilding magazine. Available from SBIC (see Resources). Moisture Control Handbook: Principals and Practices for Residential and Small Commercial Buildings, J. Lstiburek and J. Carmody, Van Nostrand Reinhold Co. , 1993. Available from the Building Science Corporation at (978) 589-5100 (phone); (978) 589-5103 (fax); or http://www. buildingscience. com. 8

In nuclear physics and nuclear chemistry, nuclear fission refers to either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts (lighter nuclei), often producing free neutrons and photons (in the form of gamma rays), and releasing a very large amount of energy, even by the energetic standards of radioactive decay. The two nuclei produced are most often of comparable but slightly different sizes, typically with a mass ratio of products of about 3 to 2, for common fissile isotopes. 1][2] Most fissions are binary fissions, but occasionally (2 to 4 times per 1000 events), three positively charged fragments are produced in a ternary fission. The smallest of these ranges in size from a proton to an argon nucleus. Fission as encountered in the modern world is usually a deliberately-produced manmade nuclear reaction induced by a neutron. It is less commonly encountered as a natural form of spontaneous radioactive decay (not requiring a neutron), occuring especially in very high-mass-number isotopes.

The unpredictable composition of the products (which vary in a broad probabilistic and somewhat chaotic manner) distinguishes fission from purely quantum-tunnelling processes such as proton emission, alpha decay and cluster decay, which give the same products every time. Fission of heavy elements is an exothermic reaction which can release large amounts of energy both as electromagnetic radiation and as kinetic energy of the fragments (heating the bulk material where fission takes place).

In order for fission to produce energy, the total binding energy of the resulting elements must be greater than that of the starting element. Fission is a form of nuclear transmutation because the resulting fragments are not the same element as the original atom. Nuclear fission produces energy for nuclear power and to drive the explosion of nuclear weapons. Both uses are possible because certain substances called nuclear fuels undergo fission when struck by fission neutrons, and in turn emit neutrons when they break apart.

This makes possible a self-sustaining chain reaction that releases energy at a controlled rate in a nuclear reactor or at a very rapid uncontrolled rate in a nuclear weapon. The amount of free energy contained in nuclear fuel is millions of times the amount of free energy contained in a similar mass of chemical fuel such as gasoline, making nuclear fission a very dense source of energy.

The products of nuclear fission, however, are on average far more radioactive than the heavy elements which are normally fissioned as fuel, and remain so for significant amounts of time, giving rise to a nuclear waste problem. Concerns over nuclear waste accumulation and over the destructive potential of nuclear weapons may counterbalance the desirable qualities of fission as an energy source, and give rise to ongoing political debate over nuclear power.

Royal Dutch Shell was created in February 1907, from a merger of Royal Dutch Petroleum Company of Netherlands (60%) and Shell Transport and Trading Company Ltd, United Kingdom (40%), for oil and gas explorations globally. The company currently operates in more than 90 countries, with approximately 101,000 employees, 44,000 Shell service stations, producing 2% of the world’s oil and 3% of world’s gas at 3.1 million barrels, and have sold over 145 billion litres of fuel.

In 2009, the company operated just under 35 refineries and chemical plants and were ranked 1 by fortune 500. The company posted Current Cost of Supplies (CCS) in the first quarter of 2010 at $4.8 billion compared to $3.0 billion 2009 first quarter. Operating activities in such as that in Nigeria generated a cash flow of $10.4 billion.

Since 1936 Shell had been active in Nigeria, exploring, producing, sales and distribution oil and gas onshore and offshore, discovering Oil in1956 at Oloibiri, Niger-Delta with BP, (a sole concession at the time). The corporation operates in Nigeria as Shell Petroleum Development of Nigeria Ltd (SPDC), operating in the country’s largest oil and gas joint venture with Nigerian government owning Nigerian National Petroleum Corporation (NNPC) (55%), Total Nigeria (10%) and NAOC (5%).

Shell is the only international company, supplying industry customers with gas as Shell Nigeria Gas (SNG). The company operates in the country’s first deepwater oil discovery producing more than 200,000 barrels per under the Shell Nigeria Exploration and Production Company (SNEPCO). This is a report on Shell international strategy using their entry in the Nigerian Oil industry, as a benchmark for their international activities. Abide by Law and align all operations within it context Also releasing report to show the approach towards legal issues Positively affecting the Brand image. Read R oyal Dutch Shell PESTLE analysis

Civil law suits such as the case of the Ogoni 9 where the company had an out-off court settlement with the plaintiffs. Conclusion Despite the civil law cases brought against the company, Shell has endeavour to abide by the laws and policies, hence positively build their brand image in the international market Core Competences In reporting Shell capabilities which are critical to their success in the Nigeria Oil industry, the ideas of Hamel & Prahalad (1990)

Position

Provides potential access to a wide variety of markets Expertise in research and development has enabled the company to enter the renewable energy market, identify emerging technologies. Through their approach to social responsibilities in Nigeria, they have diversified towards other philanthropic industries which have positive affected their brand image Makes a significant contribution to the perceived customer benefits of the end product Upstream production predicted to reach 3.5 million barrels of oil equivalent per day in 2012, reflecting an 11% increase from 2009( Shell report, 2010)

Over 771 million in R&D investments Difficult for competitors to imitate Technological knowledge leading to development of their “Slimwell” designs New Patents innovations for cost reduction and improving efficiency and reliability Strategic Relations on a Global Scale, and worldwide operations. Conclusion The core competences central to Royal Dutch Shell’s operations, have resulted in the companies competitive advantage over rivals in the market.

Entry Mode Royal Dutch Shell entered the Nigeria Oil market through forming alliance and establishing strategic relationship with the country’s government and other oil companies. Whilst standardising the prices of export barrels of oil, in the global market, which aided economies of scale, resulting in increased returns, as observed in their annual/quarterly financial reports. Evaluation Royal Dutch Shell international business strategy has been a proven success as shown in their growth and reflected on their balance sheets, in generate extravagant rewards for the company’s share holders, whilst having an a positive approach to social responsibilities.

Bibliography Website

1. Shell. 2010: Shell Nigeria [Online] (Updated 2010)Available at: http://www.shell.com.ng/home/content/nga/environment_society/taking_an_integrated_approach/ [Accessed 19 August 2010]

2. BBC. 2009: Shell settles Nigeria deaths Case [Online] (Updated 2009)

HOOF-iffy has the acceptable stability and the compatibility properties with HOFF-AAA. It is also mildly flammable but not as flammable as previous refrigerant. This is why company’s such as Volkswagen who has refused to use the new refrigerant. This new product also has a low toxicity level. Comparing the two refrigerants of HOFF-AAA and HOOF-iffy the AAA is a hydro fluorocarbon while the iffy is a hydrofluoric-olefin refrigerant. HOFF refrigerants are have one single bong while the HOOF refrigerant is bonded with at least one double bond between the carbon atoms.

HOOF-iffy has the same physical properties as HOFF-AAA therefore iffy may be used in current AAA systems without making many modifications to the system. According to DuPont iffy has the potential to be retrofitted to the existing HOFF-AAA systems. The only problem with this that it can cause is that HOOF-iffy is said to be tens times more expensive then the existing HOFF-AAA which then brings the idea of shops recharging the system with “HOOF-iffy” but actually refilling it with the cheaper HOFF-AAA since they will be so similar. Studies have proved that HOOF-iffy has improved performance beating the HOFF-AAA.

HOOF-iffy will have a lower total contribution to climate change. It has a more environmentally sustainable refrigerant for automobiles that has a 99. 7% better GAP score than the currently used refrigerants, test have also proved that it will lead to better fuel efficiency. Thus also leading it to be more efficient in warmer climates rather than using CO. Performance Test First begin doing your test with selecting your temperature knob to cold then your selector to Max LLC. This will now recalculate the cabin air without letting outside air thus resulting in colder temperature.

Then turn blower switch to full blast. Now start engine, put pressure on gas petal until reaching two thousand RPM. Now make sure to close all windows and doors. The next step would be to place an auxiliary fan in front of the car facing the condenser. Allow the system to stabilize which will take approximately five to ten minutes. Now begin to place a thermometer in the register closet to the evaporator and check the temperature. When you read the temperature it should be around thirty-five to forty degrees Fahrenheit with an ambient air temperature of eighty degrees Fahrenheit.

At this time if you have a set of gauges, this would be a good time to put them on to read your pressures and see when the impresser is cycling or cycling at all in some cases. If outlet temperature is high, check compressor cycling time. After this process now first check the cycling clutch switch operation. Second and final step for this process, is if clutch is energize continuously, discharge the system and check for missing orifice tube, plugged inlet screen, or any other restrictions in the suction line. Diagnosis using Manifold Gauge Test 1 . ) Low side should read 30 SSI and high side should read 200 SSI.

This is considered a normal pressurized system. 2. ) Low side reads 12 SSI and high side reads Pepsi. When the gauges read this, this will cause the clutch to cycle more often thus resulting in the clutch having to be bypassed to be diagnosed. Your diagnosis should conclude with a possible partial restriction in the metering device, screen clogged, or moisture in the system or a possible kinked hose on the low pressure side. You should visually inspect to see if there faulty blower or a faulty cycling switch. Also check to see if the evaporator so dirty or the filter and to see if it is iced. . ) Low side will read very low around Pepsi. High side will read normal at first but then drop. Your diagnosis will conclude that you are low on refrigerant. First perform a leak test to see if that is why your refrigerant is so low. Then check and see if there is a total restriction on the low side. Another possibility is the TXT being stuck closed. If so warm the sensing bulb and check pressure, sensing bulb may have lost its charge. 4. ) Low side will read low. High side will read high. This will mean there is restriction in the discharge line. 5. ) Low side will read high or equalized.

High side will read low or equalized. If equalized check hand valves to make sure they are open all the way. Possible electrical problem with the clutch not engaging. Also check fuses, clutch coil, wires, relay, switches, and compressor to see if there are any defects. Check to see if the clutch is engaged, valves are open and rings, belt, bearings and seal are in good working condition. 6. ) Low side will read high. High side will read normal. In this case the TXT will be stuck open. Sensing bulb may not be insulated or loose. Also could have a flooded evaporator. 7. ) Low side will read high. High side will read high.

This will result in a overcharged system or air contamination. Also a oil overcharge or dye overcharge. Also check to see if the condenser is blocked. Check for dirt, plastic bags, bent fins. Could need to be cleaned and replace broken fans if need be. Now check the electrical side such as the fans, clutch, and check to see if the engine is overheating because of poor air flow. Suggests that could be caused from the timing being off or contaminated refrigerant. Leak Detection To first do leak detection you will need to get your system to at least Pepsi for a minimum. Second you must I. D your refrigerant.

One detection method is a Halide torch. This will only work on Cuff’s and Hooch’s. You will need propane and a search hose. Next heat your reactor plate until it is red hot. The color of the flame will change once it finds a leak depending on the size of the leak. The second method of doing leak detection is the Soap Solution. Use a premixed soup solution mixed with water then spray on Joints and suspected areas of possible leaks, now look for leaks. A third method is the fluorescent dye. Take dye and inject into system while it Is in vacuum. Let the dye cycle through the system for three to four days then bring back in to check for leaks.

This method does not harm the systems performance, once back not the shop check system for leaks with a black light. The dye comes in two colors which are yellow and red. The drawback of using this method is the dye stains and will never come out. The fourth method of leak detection is using an electronic leak detector. A new and old type of these systems. The older year detects the chlorine in R-12 and the newer models can detect both. They are self-calibrating and can self I. D leak rates as low as . Jazz per year. Once you hear a beep that’s when it has found a leak. You never want to touch the leak detector to the refrigerant.

In addition to that, access to carbon dioxide and water areessential. Even though microalgae can produce in the presence of saline water,fresh water is needed in a raceway pond system to compensate for the evaporativeloss depending on the wind velocity, air temperature, and humidity level of thelocation. Temperature is an important element in biomass cultivation.

Most algaegrow better in warmer climates ranging from 25-40?. Tropical locations with auniformly warm temperature throughout the year (Chisti, 2016), can act as perfectlocations for algaculture as the temperature doesn’t have to be monitored at alltimes, and the algae can adapt to local conditions.There are however some drawbacks while using raceway pond systems, thatrender them sometimes ineffective.

Since, carbon dioxide is required to acceleratethe production of microalgae, an accumulation of oxygen can act as a hindrance tothe process. There is no known mechanism in a raceway pond, that helps curb thisaccumulation of oxygen. Peak sunlight hours during the day can hamper with thephotosynthesis, as the level of oxygen may increase to up to three times of the levelin saturated water. For this reason, smaller raceway ponds achieve better resultsthan larger ponds with respect to oxygen removal, and in turn better productivity.

Another issue with raceways is the contamination due to exposure to rain, dust andother debris. Smaller ponds may be placed inside, but that can’t be said for largerponds. Filtration can help inhibit infestations and contamination of the ponds, but thatis an expensive process.The production cost of biomass with raceways is considered to be the leastexpensive option.

The cost of a pond depends on the type of facility it is built in,plastic lined earthen raceways are the least expensive alternatives with their totalcost of construction amounting to be approximately $70,000 per hectare, whereasponds enclosed in greenhouses or covered facilities are more expensive as theyprotect from contamination. Raceways require least amount of capital investmentand therefore remain the system of choice, despite their low productivity anddrawbacks.

Photo-bioreactors (PBRs)

A photo-bioreactor is a closed equipment which provides a controlledenvironment and enables high productivity of algae.

PBRs curb all the problems thatare faced in raceways ponds, like carbon dioxide supply, temperature, optimaloxygen levels, pH levels etc. There are two types of photo-bioreactors- flat-plate andand tubular. Both PBRs are made of transparent materials for maximum solar lightenergy absorption. Flat-plate PBRs are suitable for mass cultivation of algae,because high photosynthetic efficiencies can be achieved. Tubular PBRs aresuitable for outdoor cultivation, and are constructed with either glass or plastic tubes.

Systems covering large areas outdoors, consist of tubes exposed to sunlight and canbe operated either in batches or continuously. Photo-bioreactors usually have a4water pool as a temperature control system in order to prevent the tubes fromoverheating as they act as solar receptors. They also have built in cleaning systemfor the tubes without stopping production.

Fundamentally, using photo-bioreactorsare more advantageous than using raceways for many reasons, like cultivation ofalgae under controlled environments resulting in higher productivity, protection fromcontamination, space-saving and larger surface to volume ratio. However there aresome limitations attached to PBRs; the capital cost is very high which is impedingthe progress of microalgae biofuel production, in spite of larger production levels.

Also, data from the past two decades has shown that the productivity in an enclosePBR is not much higher than that achieved in open-pond cultures.3. Environmental Limitations of Microalgae CultivationAs with all large scale productions, wide scale microalgae biofuel productioncould have diverse environmental impacts. Water is a critical element of the biofuelproduction processes, in both raceway-ponds and PBRs.

With the current globalwater crisis, using large amounts of fresh water to compensate for evaporation inopen ponds or to cool PBRs, renders the system economically unviable. Seawater orbrackish water may be used in these functions, but have to be filtered in order toprevent infestation of bacteria, and contamination. Recirculating water is onealternative to curb the usage of water, but that has risks of virus infestations, and theresidues of previously destroyed algae cells.

Filtration systems are expensive, andfactor in with the lack of cost effectiveness of these systems.Most microalgae production farms have to be located close to the equator inorder to ensure high levels of production due to the uniformity of the climate, andadequate amount of solar radiation. Another factor is the type of land and terrain thefarm is located in, for instance to install a large raceway pond, a relatively flat land isrequired. The addition of nutrients and fertilisers like nitrogen and phosphorus is alsoessential for algaculture.

The amount of nutrients and fertilisers to be usedadditionally depends on the soil porosity and permeability of the land. Algalcultivation requires a lot of fertilisers to make up for the compensation for fossil fuels.Researching and budgeting nutrients and fertilisers is a key concern in research anddevelopment of microalgae cultivation.

Algal cultivation requires usage of fossil fuels continuously in a plethora ofways, ranging from electricity consumption during cultivation and natural gas used todry the algae for production. In PBRs, the temperature control for cooling the pipesfrom overheating increases the use of fossil fuels. This use of fossil fuels in algaebiofuel production is paradoxical to the cause and a dire need to optimise the systemto minimise the energy usage is established.

That being said, microalgae cultivationfaces a variety of environmental challenges, coming from the location to the type of5algae. Energy conservation and water management are two of the main challengesto be conquered to make the system sustainable in the future.4. Cost EffectivenessThe cost of algae biofuel production is essential to establish to know howsustainable this system can be in the future. The cost of biofuel production dependson a variety of factors, such as the the yield of the biomass, geographical location, oilcontent, scale of production systems etc.

Presently, microalgae biofuel production isstill more expensive than normal diesel fuels because of the ongoing R&D, and theambiguity of current knowledge. Chisti in 2007 approximated the cost of productionof algal-oils from a PBR with an annual production capacity of 10,000 tons per yearand estimated the cost of $2.80 per litre, considering the oil content to be 30% in thealgae used. This estimation is exclusive of the algal oil to biodiesel conversion costs,logistics, marketing costs and taxes.

Due to these high costs of algal-fuel, the utmostimportance during research should be given to cost-saving itself, in an attempt tomake biofuel from microalgae affordable enough to be commercialised in the nearfuture.Open pond systems would ideally be the most economically viable way tocultivate microalgae biofuel, but not without it’s set of intrinsic disadvantagesdiscussed earlier in this research paper.

As the technology gets increasinglyadvanced, the cost factor multiplies as well making the entire process a lot lesseconomical than what was started with first hand. Improved yield of biomass andnutrient oils (or lipids) would make the production costs drop rapidly.Moreover, to reduce the production costs alternative ways to manage energy andwater consumption have to be devised, a simplified design for PBRs is necessary.Substitutes for fresh water like wastewater and flue gases can contribute to lowercosts of production.

Biofuel Production

The rapid growth of environmental pollution by the usage of conventionalfossil fuels has sparked a lot of concern globally. The research and development foralternative fuels is one of the principal focuses for every country in an attempt for asustainable and promising future on this planet for all generations. Various optionsare available to us to help us make this shift, however to find a sustainable methodwhich is as promising as it is economically viable is a global challenge.

Currently,biomass derived fuels seem to be the most optimistic path.Various ways of harvesting algae have been discussed in this paper, the next step istypically to process the algae in a series of steps which differ from species to6species. One of the most important approaches in biomass production isHydrothermal Liquefaction or HTL.5.1 Hydrothermal LiquefactionHydrothermal Liquefaction employes “a continuous process that subjectsharvested wet algae to high temperatures and pressures” (Elliot, 2013).

Convertingsolid biomass to liquid fuels is not a spontaneous process. The liquid fuels derivedfrom fossil fuels on a large scale took thousands of years to convert biomass tocrude oil and gas. In present day, there are many modern conversion technologies toobtain liquefied fuels from various biomasses, these conversion technologies canfundamentally be classified into biochemical and thermochemical conversion.Biochemical mass usually has low energy density, high moisture content and doesnot have a very viscous physical form.

Thermochemical conversions in comparisonare much more viscous as they are converted at very high temperatures in highpressures in the presence of catalysts that make the conversions much more rapid.Simply, Hydrothermal Liquefaction is “the thermochemical conversion of biomassinto liquid fuels by processing in a hot, pressurized environment for sufficient time tobreak down into solid bio polymeric structure to mainly liquid components”(Gollakota, 2017).

Microalgae is, amongst all possible biomass sources, the most efficientand reliable source of wet biomass due to its high photosynthetic efficiency,maximum production levels, and its rapid growth in almost all environments. Overthe years, many thermochemical conversions have made their way, and while eachhas their pros and cons, HTL has come a long way as one of the most appropriateprocesses to tackle thermochemical conversion of wet biomass.

Many scientists overthe years have done extensive research pertaining to the development ofhydrothermal liquefaction, such as Beckmann and Elliott who studied the propertiesof oil obtained from HTL of biomass, and gave crucial inputs with respect to the kindof catalysts and other parameters are pertinent to the HTL process to ensuresignificant productivity.5.2 Process MechanismCurrently, the knowledge about HTL process mechanisms is qualitative andneeds a lot more space for research.

The mechanism comprises of three majorsteps: depolymerisation, decomposition and recombination. The chemistry behind allthese processes is very complex as the biomass is a complex mixture ofcarbohydrates, proteins, oils etc. Each working mechanism of hydrothermalliquefaction is discussed below.5.2.1 Depolymerisation7In this process the macromolecules of the biomass are dissolves through theirphysical and chemical properties.

Depolymerisation makes it easier for the biomassto overcome it’s natural qualities and start behaving like fossil fuels. It mimics thegeological processes, that are involved in the production of conventional fossil fuels.The process first grounds the feedstock material into small chunks and mixes it withwater, if the feedstock is fry. This mixture is then put into a pressure vessel reactionchamber where it is heated at a constant volume at a temperature of 250?, themixture is held in these conditions for approximately 15 minutes at the end of whichthe pressure is released and most of the water is boiled off.

The resultant concoctionconsists of crude hydrocarbons and solid minerals. The minerals are removed andthe hydrocarbons are sent to the second stage.The disadvantage of this process is that it only breaks down long molecularchains into shorter ones, this implies that smaller molecules like carbon dioxide ormethane cannot be broken down further by depolymerisation.

Decomposition or Dehydration

The second stage of hydrothermal liquefaction involves the loss of the watermolecule, the carbon dioxide molecule and the acid content. Water at high pressuresand temperatures breaks down the hydrogen bonded structure of celluloses and inturn forms glucose monomers. This is how HTL provides an alternative processroute from microalgae biofuels to hydrocarbon liquid fuels.5.2.3 RecombinationThis is the last step in HTL which is reverse of the two previous processesbecause of the absence of the hydrogen compound.

The free radicals are largelyavailable which in turn recombine or repolymerise to form high molecular weight charcompounds.5.3 Hydrothermal Liquefaction of Microalgae:The main advantage of using HTL for microalgae is that it doesn’trequire the predrying of feedstock, yet ensuring a relatively high production. Theprocess of HTL applied to microalgae is similar to treating cellulose but with a fewdifferences, the major one being treating wed feedstock as opposed to dryfeedstock.

One of the principally researched issues that will ensure high productivityis a high lipid yield, which is necessary to convert microalgae into biodiesel. Theeffect of significant variables, such as temperature, pressure, volume, biomassconcentration and compositions of algae, catalysts et al. is still under research.During hydrothermal liquefaction of microalgae, a rational heat management system8must be put in place that ensures energy efficiency and separation of the endproduct.

Current Situation ; Future Viability:In present day, pertaining to all the advantages and disadvantages of HTL,there is sufficient proof that HTL has potential to become a commercialisedtechnology in the future.Biofuels produced using hydrothermal liquefaction are absent of carbon, thisimplies that there are no carbon emissions produced when the biofuel is burnt.Materials like algae use photosynthesis to grow, and therefore use the carbondioxide already present in the atmosphere.

The carbon imprint produced by biofuelsis exponentially lower than what is already being experienced by conventional fossilfuels. Hydrothermal Liquefaction is a clean process, which doesn’t harm theenvironment by producing harmful gases like ammonia or sulphur. If the technologyis mastered, HTL can pave the way for clean algal biofuels globally, although thereare still a number of challenges to be overcome.

Conclusion

The cultivation and production of microalgae biofuels is swiftly developing andis receiving attention and funding from global leaders. The rapid increase in worldpopulation, and hence the energy demand is a siren call to devise an alternativeenergy source. Microalgae’s versatile qualities make it a promising path to tread onwhen it comes to biofuels. There are various ways to derive biofuels from algae aswe saw in this paper, and also many challenges attached with them.

Bio-oil obtainedfrom various processes suffers from various drawbacks such as a high oxygencontent, instability etc, therefore an optimal technique to efficiently convert biomassto biofuel should be researched in order to be able to commercialise the use ofbiofuels in the near future. Making biofuels economically viable in the future is a bigchallenge in itself.

Even though, photo-bioreactors promise a bright future in terms ofbiofuel cultivation, the overhead costs attached from cultivating the biofuel to makingit market ready and selling it are still quite high. These high costs of biofuels ascompared to conventional fossil fuels are what render them unready forcommercialisation. However, even with theoretical development and research, abright future for microalgae fossil fuels presents itself.

Whether the energy needs of a society depend on wood to provide the basic cooking and heating requirements of village life, or on the immensely varied fuel mix of the industrialized nations with their highly complex production and distribution systems, civilization is impossible without an adequate energy supply. In industrialized societies, the situation is further complicated by the competition between the use of fossil fuel as an energy source and their vital role as raw materials for the parenthetical industries, which produce plastics, fertilizers, animal feedstock, heuristically, and industrial gases.

Thus the so-called energy problem has implications for the whole structure of modern societies. Renewable resources are those which will replenish themselves naturally in a relatively short time and will therefore always be available. They include:

1. Geothermal Energy – which arises through the leakage of heat from the Earth’s interior to the surface. The turbine generator worked through the heat of water coming from underneath the earth. While the turbine is working, mechanical energy produces electricity.
2. Hydroelectric Power – the energy coming from water. Dams are built and when water pass through here, the mechanical energy from the turbines produces electricity.
3. Solar Energy – the energy coming from the heat of sun, can be used to produce electricity by means of solar cells or panels. Wind Power – the windmills produced mechanical energy when blown by wind. The mechanical energy produced here is the one that produces electric energy, like other sources of energy.
4. Biomass Energy – energy from bio fuels such as: cultivated crops crop residue natural waste vegetation wood mommies and industrial refuses Impaling outlook nag yang anywhere as mega Tao Para as Kananga at continual nag paunchy into. Willingham nag yang anywhere ay nag current o electrifiers. Tit ay gingham anti as pang-raw. As postulate, Andy nag rice cooker, as Bagley, nag gambit anti ay washing machine Para Hindi Toyota mapping massage as Bagley, nag gambit mating ‘law as gab Para mammalian nag tatting bay at spiraling.

Halos lat nag gambit anti Nagoya ay nationalizing nag current. As mega Negroes, Assam as page-unlade into ay nag pigtail nag yang anywhere. Geothermal energy is the heat from the Earth. It’s clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth’s surface, and down even deeper to the extremely high temperatures of molten rock called magma.

Hydroelectricity is the term referring to electricity generated by hydrophone; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy, counting for 16 percent of global electricity generation – 3,427 Atwater-hours of Economics By interconnected the next 25 years. Nag lanais ay sang sustaining kamala an NASA staying maillot an liked (“maligns”) as temperatures pang-solid o mass amanita nag jaunts, at Parthenon hydrophobia (insensible o Hindi mammal as tubing) at lollipop (omissible o manhole as bang mega lanais, as literal).

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May intersession stagnating kamala nag Hindi metal an element tit an marring kiwi as sari into at as Malawi an bait bang mega elements, bunion nag halos 10 milling mega computes. Kappa sienna as shoeshine, bunion nag Dickson carbon (carbon dioxide) a naphthalene Para as pagoda nag ‘sang Hellman. Kappa sienna as drone, bunion tit nag mega bait bang mega computes an awaiting an mega troubadour (hydrocarbons) an amalgam Para as industrial as any nag mega fossil fuel (panting fossil).

Kappa Panamanian as Parthenon shoeshine at drone, bumble tit nag mega bait bang mega computes gabbling nag mega manhattans aside, an amalgam as bubby, at mega ester, an inhabiting lass as marking mega apparatus. Garaging gingham as radioactivity pageantry nag carbon-14 an isotope. Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electrical power, windmills for mechanical power, wind pumps for water pumping or drainage, or sails to propel ships.

Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar energy technologies include solar heating, solar photovoltaic, solar thermal electricity, solar architecture and artificial photosynthesis, which can make considerable contributions to solving some of the cost urgent energy problems the world now faces Biogas typically refers to a gas produced by the breakdown of organic matter in the absence of oxygen.

It is a renewable energy source, like solar and wind energy. Furthermore, biogas can be produced from regionally available raw materials and recycled waste and is environmentally friendly. Biogas is produced by the anaerobic digestion with anaerobic bacteria or fermentation of biodegradable materials such as manure, sewage, municipal waste, green waste, plant material, and crops.  Biogas comprises armorial methane (CHI 4) and carbon dioxide (CO) and may have small amounts of hydrogen sulfide (H AS), moisture and sailplanes.

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The virtual drilling centers are an addition to the company’s cutting edge technology that enhances the drilling by monitoring, analyzing and directing drilling processes around the globe. This has been made possible through the simple act of placing sensors right behind the drill bit. These sensors send signals to a satellite linked to the company’s Drilling Information Management Center located in Houston.

Data and information captured in this manner includes; the depth of the well, the speed of the drill, pressures and temperatures in the well and its environment as well as details on the amounts of soil flowing in and out of the well being drilled. By analyzing this information, geoscientists and well drilling engineers are able to monitor and direct the drilling operations in any of the company’s potential oil wells in the world.

With the state of the art technology such as seismic imaging, geologists and drilling engineers can scan 3D projection of seismic data, with the power and capability of the supercomputers and developments in innovation in parallel processing. This capability is further enhanced with the availability of 3D pointers (devices that enable the manipulation of objects in virtual environments) a new well can be planned at the same time while the effects and changes to the reservoir observed instantaneously.

Environmental Challenges With “go green” demands being made by environmental sustainability activists and supporters, the ExxonMobil could feel the pressure to review the data and information it had on its emissions. Currently the company makes huge investments in research and implementation of environmentally friendly production processes. The investment in LNG would be a way to reduce the emissions as this gas is natural gas.

… over the past two years, ExxonMobil announced the development of a new technology for on-board hydrogen reforming to power fuel cell vehicles, deployment of new battery separator films for use in lithium-ion batteries in hybrid and electric vehicles, and a major pilot project to demonstrate a more efficient means to capture carbon dioxide from produced gas (Rossi 200). The company’s broad research programs and support processes enable constant development of each of its businesses as well as exploration of up-and-coming energy sources and advancements.

When it comes to the company’s shareholders, ExxonMobil has been know to be a great campaigner of profitability that ensures it’s premium and superior returns to every investments made. The company strives to ensure that its customers’ dynamic and frequently changing needs are satisfied by employing innovative and timely responsive processes while offering quality and affordable products Related Diversification

ExxonMobil is well known for business-line strategic decisions that ultimately form the foundation of the company’s business segmentation and operational divisions. Over 500 airline as well as governmental consumers spread over more than 80 countries, ExxonMobil’s worldwide aviation fuels industry is the leading in worldwide jet fuel supply fueling over 4, 000 aircraft on a daily basis. With a portfolio that is market specific, ExxonMobil is able to assert its retailing expertise and capabilities.

Branding specifically to target markets is one of the successful business level strategies employed by the company. Available in Belgium and France is the Esso Express brand of retailing stations that are basically unattended. For consumers in a hurry and mostly busy, the company unveiled the Speedpass that would offer an easy and fast method to buy gasoline without the use of cash or a card.