اثر نسبی افت فشار و ناکارآمدی ماشین های توربینی بر عملکرد چرخه انتقال حرارت توربین های گازی

The gas turbine engine is known to be relatively more sensitive to pressure losses and inefficiencies of components than any other engine. Therefore, a quantitative evaluation of the resulting performance is necessary. In this paper, a heat-exchange cycle, which is widely used due to its higher efficiency, is considered. Performance, including work and thermal efficiency, in addition to air mass flow, is evaluated over a wide range of operating conditions, namely, compressor pressure ratio, and efficiency plus turbine efficiency. A specially designed computer program was used. The analysis resulted in a set of curves which help the designer to easily estimate the percentage change in performance and engine cost relative to the ideal cycle over a wide range of operating conditions.