The New Jersey Institute of Technology's
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Title:	The effect of variation in the ratio of specific heats with temperature and pressure on horsepower requirements of reciprocating compressors
Author:	Piskin, Selim
View Online:	njit-etd1973-025 (vii, 98 pages ~ 6.4 MB pdf)
Department:	Department of Chemical Engineering and Chemistry
Degree:	Master of Science
Program:	Chemical Engineering
Document Type:	Thesis
Advisory Committee:	Roche, Edward Charles, Jr. (Committee chair) McCormick, John E. (Committee member) [illegible signature] (Committee member)
Date:	1973-10
Keywords:	Compressors
Availability:	Unrestricted
Abstract:	The expansion and compression of fluids is discussed in relation to the design of reciprocating compressors. As part of this thesis, the design equations for reciprocating compressors are developed for both ideal and reel gases. The resulting design equations contain, as one of the parameters, the ratio of the specific heats. Using published componential specific heat data, a correlation was developed relating the dependence of the ratio of specific heat on temperature and pressure for the nore common gases. These correlations were developed so as to be compatible with the compressor design equation and to provide rapid evaluation of the various design equations. As part of the analysis of the applicability of the design equations, it was demonstrated that interstage cooling is always desirable, and that real gases with compressibility factors less than unity have lower power requirements for the same pressure change than the corresponding ideal gas.