Effect of Specific Heat Parameters on Performance of SI Engine
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 11
Abstract
This Research Work presents Thermodynamics analysis of spark-ignition (SI) engine. A theoretical model of standard Otto cycle having temperature dependent specific heats has been implemented. It was compared to that which uses constant temperature specific heats. Wide range of engine parameters was studied. In most cases there were significant variations between the results obtained by using temperature dependent specific heats with those obtained at constant specific heats especially at higher engine speeds. Therefore, it is more realistic to use temperature dependent specific heat. This should be considered in cycle analysis especially that temperature variation in the actual cycles is quite large. Numerical experiments are performed by writing a computer code in C and heat release, in cylinder pressure and temperature histories are predicted.
Authors and Affiliations
R. Srinu, L. Srinivas Naik, K. Srinivasa Chalapathi, Dr. B. Sudheer Prem Kumar
Keywords
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