Thermodynamic Concepts on Efficiency of Aircraft Engines
Faradiba Faradiba
*
Department of Physics Education, Universitas Kristen Indonesia, Jl. Mayjen Sutoyo No. 2, Cawang-Jakarta 13630, Indonesia.
Endah Yuniarti
Aviation Engineering Study Program, Universitas Marsekal Suryadarma Halim Perdanakusuma, Jakarta 13610, Indonesia.
*Author to whom correspondence should be addressed.
Abstract
Along with the development of engine technology to be able to produce maximum efficiency in aircraft jet engines, various modifications were made to the machine tools. Modifications are made by taking into account four main factors, namely: maximum power output, reduced engine weight, low fuel consumption and maximum aircraft payload. This research uses a meta-analysis method, namely the analysis of several research results in line with what has been done previously regarding the efficiency of aircraft jet engines. The thermodynamic concept related to the heat engine which implements the brayton cycle that maximum efficiency can be done by reducing wasted heat energy and maximizing the work produced. From this concept, several attempts to maximize aircraft efficiency, such as modification of design that have a significant impact on weight reduction, fuel barrier design with low fan pressure, high bypass design ratio are also carried out in an effort to reduce aircraft noise levels. Aircraft noise levels can also be minimized by modifying the nozzle and ejector on the engine.
Keywords: Thermodynamics, jet engines, aircraft.