American Journal of Environmental Sciences 5 (3): 371-381‚ 2009 ISSN 1553-345X © 2009 Science Publications Green Engines Development Using Compressed Natural Gas as an Alternative Fuel: A Review Semin‚ 2R. A. Bakar and 2A.R. Ismail 1 Department of Marine Engineering‚ Institute of Technology Sepuluh Nopember Surabaya‚ Campus ITS‚ Sukolilo‚ Surabaya 60111‚ Indonesia 2 Automotive Excellent Center‚ Faculty of Mechanical Engineering‚ University Malaysia Pahang‚ Locked Bag 12‚ 25000 Kuantan‚ Pahang
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WANKEL ENGINE The Wankel engine‚ invented by German engineer Felix Wankel‚ is a type of internal combustion engine which uses a rotary design to convert pressure into a rotating motion instead of using reciprocating pistons. Its four-stroke cycle takes place in a space between the inside of an oval-like epitrochoid-shaped housing and a rotor that is similar in shape to a Reuleaux triangle but with sides that are somewhat flatter. This design delivers smooth high-rpm power from a compact size. Since
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A jet engine‚ like a rocket engine‚ is a reaction engine. It works by throwing mass in one direction and taking advantage of the reaction in the opposite direction. In the case of a jet engine‚ the engine burns fuel (like kerosene) with air from the atmosphere. The burning fuel heats and expands the air‚ and this hot air shoots out of the exhaust-end of the engine to create thrust. Most modern jet engines use a turbine to improve the efficiency of the engine and allow the engine to work at low speeds
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The Diesel Engine Diesel engines are very similar to the gasoline engine you may find in a car. They both are internal combustion engines‚ have a four stroke cycle‚ and convert chemical energy from fuel into mechanical energy. However‚ the manner in which the combustion stroke is attained sets these two engines apart‚ and although a seemingly meaningless change‚ a large change in efficiency results. (Diesel Engines vs. Gasoline Engines) The diesel engine was invented by Rudolf Diesel in 1892
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EN2702 Thermofluids – Petrol Engine Report Introduction At the end of 2010 it was estimated that there were 31‚035‚791 cars owned in the UK. (1) With cars being such a high contributor to the environmental problems that the planet is experiencing‚ it is of vital importance that our cars become as fuel efficient as possible‚ thus saving petrol and preserving the world’s fossil fuels. Around seventy-five percent of carbon monoxide emissions come from automobiles and in urban areas‚ harmful automotive
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Engine Problems while in Operation DIESEL ENGINE PROBLEMS: FUEL‚ AIR‚ STARTING‚ WIRING Many cases of engine failure are a result of a relatively small number of faults so it’s often possible to get the motor running again within a few minutes. However‚ when diagnosing problems it’s important to work in a systematic fashion and avoid the temptation to jump to conclusions. (Left) Bleeding the fuel with the primary bleed screw (Right) bleeding the fuel at the injector pump With a fuel
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This is a Newspaper on Steam engines. The Watt steam engine (alternatively known as the Boulton and Watt steam engine) was the first type of steam engine to make use of steam the new design replaced Newcomen engines in areas where coal was expensive‚ and then went on to be used in the place of most natural power sources such as wind and water. A Scottish instrument maker‚ James Watt‚ was given the job in 1763 of repairing a model Newcomen engine for the University of Glasgow‚ and noted how inefficient
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Introduction to Engine Performance – Study Guide ©2005 Melior‚ Inc. ____________________________________________________________________________________ Introduction The engine is the power plant of a vehicle. Automotive engines have gone through tremendous changes since the automobile was first introduced in the 1880s‚ but all combustion engines still have three requirements that must be met to do their job of providing power – air‚ fuel‚ and ignition. The mixture of air and fuel must be compressed
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Competition Apex Seal Information Engine — Rotary Carbon apex seals and Iannetti Advanced Carbon seals are recommended for any engine that will see 8000 rpm and above. They weigh significantly less than the stock (cast iron) apex seals and provide lower mass‚ keeping the apex seal in contact with the rotor housing face at high rpm. At high rpm‚ the stock (cast iron) seal overcomes the spring‚ causing the seal to skip across the rotor housing surface‚ reducing engine performance. Cast iron seals
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Nursing rounds are given separate names according to thepurpose they serve .a)Information giving rounds :It is used to acquaint the staff with all patients on the wardor division .b)Instructional rounds :Here the nurse is expected to read the charts and come torounds with basic information in mind .c)Problem solving rounds: This is to help the nursing staff learn to conduct initialinterviews make assessment of patient’s needs and identifynursing care problems .Purposes of nursing rounds :1.To demonstrate
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