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Transient analysis of heat pump assisted distillation systems. 1 The heat pump
Author(s) -
Salim M. A.,
Sadasivam M.,
Balakrishnan A. R.
Publication year - 1991
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.4440150206
Subject(s) - thermal expansion valve , evaporator , condenser (optics) , heat pump , gas compressor , refrigerant , transient (computer programming) , thermodynamics , adiabatic process , zeotropic mixture , reciprocating compressor , distillation , mechanics , piston (optics) , heat pump and refrigeration cycle , coefficient of performance , materials science , chemistry , heat exchanger , physics , computer science , light source , organic chemistry , wavefront , optics , operating system
A simple algorithm to simulate the transient behaviour of a vapour compression heat pump is described. Individual models are developed for various components of the heat pump such as compressor, evaporator, condenser and expansion valve. The components are simulated separately and are combined to form the total system. The compressor is a hermetically sealed, reciprocating piston type with adiabatic compression, the evaporator and condenser are coiled copper tubes, and the expansion valve is assumed to be adiabatic. The transport and thermodynamic properties of the refrigerant used are obtained from empirical equations. The total system is viewed in a simplified manner in order to apply the results of this transient analysis to the behaviour of a chemical process operation, namely, distillation.