Power output and E
Power output and Efficiency of internal combustion
engine based on the FTT theory
Reza Masoudi Nejad
Young Researchers Club,
Islamic Azad University, Shahrekord Branch, Shahrekord, Iran
Abstract: Typically,
in an internal combustion engine, thousands of cycles are performed in a
minute. In this sequence of cycles many physical and chemical quantities change
from cycle to cycle. For example, the combustion heat changes due to residual
gases, imperfect combustion and other reasons. In this work, we present two
finite-time thermodynamics models for both an Otto and a Diesel cycle, in which
the cyclic variability is studied as occurring in the heat capacities of the
working fluid. The fluctuations considered are of the uncorrelated type
(uniform and gaussian) and one correlated case (logistic map distribution). We
find that in the correlated fluctuations case, the power output and the
efficiency of both cycles reach bigger fluctuations than in the uncorrelated
cases. This result can provide insights over the performance of internal
combustion engines.
[Reza
Masoudi Nejad. Power output and Efficiency of internal combustion
engine based on the FTT theory. Life
Sci J 2012;9(1):387-390] (ISSN:1097-8135). http://www.lifesciencesite.com. 56
Keywords: internal combustion engine; cyclic variability;
fluctuations Full Text 56
