Thursday, December 5, 2019

Operation And Performance Of Turbine Engineâ€Myassignmenthelp.Com

Question: Discuss About The Operation And Performance Of Turbine Engine? Answer: Introducation The turbine engine is a system that is composed of numerous auxiliary subsystems and turbomachinery. Air gets into the compressor section which is propelled by a component of the turbine and is located on the equivalent shaft. Air leaves from the compressor at a pressure that is high and gets into the chamber of combustion, where the fuels chemical energy is converted into a thermal energy hence releasing the gas of combustion at a temperature that matches to the temperature of the turbine inlet design. The gas of combustion expands in the following components of the turbines where the total accounting is converted partially into the exit kinetic energy and shaft work Turbine Engine Operating Cycles The four constant and continuous events are the exhaust, intake, expansion, and compression. These cycles are discussed depending on their application on the engine of the gas turbine. Intake cycle: During the cycle of intake, air gets in at constant volume and ambient pressure. The air will then escape from the intake at a decreased volume and increased pressure(Anderson, 2009). Compression cycle: This cycle takes place at the compressor where the air is gotten from the intake at a higher pressure which is more than the ambient and a lower volume. Air is then compressed by the compressor and then leaves the compressor at a decreased volume and increased pressure. This action is as a result of compressors mechanical action. Expansion: This cycle takes place in the chamber of combustion through fuel burning which increases Businessvolume of air through heating which the pressure remaining constant. The gases expanding move in the rear direction through the assembly of the turbine and are changed to mechanical energy from the velocity energy(El-Sayed, 2013, p. 187). The section of exhaust is involved in the conversion of the decreasing pressure and expanding the volume of the gases to a resultant velocity which is high. Operation of Turbine Engine Engine start: The engine is started by rotating the compressor by the use of a starter, turning on the ignition, and then opening the valve of engine fuel. The procedure of starting up the engine may be aborted if the temperature limit of the exhaust gas is exceeded or if the engine does not light up within the allowed duration(Farokhi, 2015, p. 247). Engine shut down: The fuel supply is cut off by the power lever or throttle of the aircraft for the turbine engines which do not have thrust reverser making the engine to shut down. The turbine wheels and turbine case function at relatively similar temperature during the running of the engine. The case of the turbine is exposed to the air for cooling from outside and inside the engine. Therefore, the wheels and case lose their heat at different levels after the shutting down of the engine(Thomas W Wild, 2012, p. 159). Crash process The crash process happens when the engine of the turbine is an aircraft stop to give out thrust or production of power unexpectedly because of malfunction and exhaustion of fuel. In case of the failure of engine, the aircraft, it is frequently possible for the pilot to go into autorotation, using the rotor that is not powered to slow the descent of the aircraft and give control measures normally allowing for the emergency landing that is safe given the absence of engine power(Thomas W Wild, 2012, p. 168). During the shutdown of the engine, the landing with persuasion is normally carried out with the airport rescue equipment and fire placed close to the runway. After the landing of the aeroplane, the personnel of the department of fire help with inspecting the areophane to make sure that it is safe before it moves to its position of parking. References Anderson. marketing. Propulsion Plant Accident Investigation. Michigan: Springer Publishers. El-Sayed, A. F. (2013). Aircraft Propulsion and Gas Turbine Engines. Paris: management. Farokhi, S. (2015). Aircraft Propulsion. Colorado: John Wiley Sons. Thomas W Wild, M. J. (2012). Aircraft Powerplants, Eighth Edition. London: McGraw Hill Professional.

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