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Wall heat storage in displacement compressors
Author(s) -
Decher R.
Publication year - 1988
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440120302
Subject(s) - thermal energy storage , gas compressor , materials science , displacement (psychology) , environmental science , mechanical engineering , nuclear engineering , mechanics , thermodynamics , engineering , physics , psychology , psychotherapist
The role of cyclic heat transfer between the walls of a piston/cylinder and the gas being compressed is investigated from the point of view of thermodynamic performance. It is shown that the adiabatic efficiency depends directly on the amount of heat transferred which in turn depends on the operating parameters as well as material from which the compressor is constructed. It is shown that for good high pressure ratio performance, the cylinder head, the piston head and the upper section of the cylinder must be built with materials of low thermal conductivity. Candidate materials are found in the ceramic family of silicon compounds, among others.