Exergy analysis of SI engines


Sezer I., BİLGİN A.

INTERNATIONAL JOURNAL OF EXERGY, cilt.5, ss.204-217, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 5 Konu: 2
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1504/ijex.2008.016676
  • Dergi Adı: INTERNATIONAL JOURNAL OF EXERGY
  • Sayfa Sayıları: ss.204-217

Özet

In this study, exergy (availability) analysis of a Spark Ignition (SI) engine has been performed theoretically during compression, combustion and expansion processes of the engine cycle. For this purpose, a thermodynamic-based engine cycle model is developed without considering the geometric features of fluid motion. Through the analysis, the effects of changing some design and operating parameters, such as compression ratio, fuel-air equivalence ratio and spark timing on the variation and destruction of exergy have been investigated. It was obtained that design and operation conditions have considerable effects on the variation of exergy and irreversibilities during investigated parts of the cycle.