The influences of thermal balance effects of aircraft fuel system on performance

In this study, energy and exergy analysis of fuel system was performed to investigate of variation of flow and heat energies of fuel, loads by the fuel system. Thermal balance, formed by many different components of aircraft systems by means of heat management, has been significantly affected by aircraft performance. Meanwhile one of the most important components of thermal management in the aircraft systems is fuel system. The rate of energy transfer occurred in the fuel system components throughout flight is respectively 42% for LPFFCOC, 23% for HPFCOC in the heat exchangers and 22% for LPFP, 13% for HPFP in the fuel pumps. Besides, the rate of energy transfer occurred along the flight according to flight maneuvers is respectively 50% during the climbing maneuver, 21% during the acceleration maneuver, 13% during the idle position, 8% during cruise maneuver and 8% during the landing maneuver.