publication . Article . 2013

Exergetic analysis of an aircraft turbojet engine with an afterburner

Ehyaei M.A.; Anjiridezfuli A.; Rosen M.A.;
Open Access English
  • Published: 01 Jan 2013 Journal: Thermal Science (issn: 0354-9836, Copyright policy)
  • Publisher: VINCA Institute of Nuclear Sciences
Abstract
An exergy analysis is reported of a J85-GE-21 turbojet engine and its components for two altitudes: sea level and 11,000 meters. The turbojet engine with afterburning operates on the Brayton cycle and includes six main parts: diffuser, compressor, combustion chamber, turbine, afterburner and nozzle. Aircraft data are utilized in the analysis with simulation data. The highest component exergy efficiency at sea level is observed to be for the compressor, at 96.7%, followed by the nozzle and turbine with exergy efficiencies of 93.7 and 92.3%, respectively. At both considered heights, reducing of engine intake air spee...
Subjects
free text keywords: turbojet, afterburner, exergy, entropy generation, efficiency, Mechanical engineering and machinery, TJ1-1570
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