ACTUAL EFFICIENCY OF PISTON MACHINES

A thermodynamic analysis has been performed for the operation of piston machines using ideal and real gases as a working body in direct and inverse Carnot cycles. An interrelationship has been established between the fugacity coeffi cient of the working body (real gas) and the effi ciency of a piston thermal machine. Calculating formulas have been obtained for identifying the dependence of the effi ciency of such machines on the characteristics of their working body. Verifi cation has been conducted for the proposed method of thermodynamic potentials and the relations obtained on its basis connecting the actual effi ciency of a thermal machine with the fugacity coeffi cient of its working body
   
Author:  V. G. Kiselev ,  A. A. Kalyutik ,  I. D. Naletov
Keywords:  piston machine, thermal engine, thermodynamic potentials, Carnot cycle, ideal gas, effi ciency
Page:  570