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Computer Modeling of the Vapor Compression Cycle With Constant Flow Area Expansion Device. Final Report.


pdf icon Computer Modeling of the Vapor Compression Cycle With Constant Flow Area Expansion Device. Final Report. (6832 K)
Domanski, P. A.; Didion, D. A.

NBS BSS 155; May 1983.

Sponsor:

Department of Energy, Washington, DC

Available from:

National Technical Information Service
Order number: PB83-226639

Keywords:

buildings; air conditioning equipment; heat pumps; refrigerant compressors; capillary tubes; heat transfer coefficient; mass transfer; mathematical models; computerized simulation; user needs; Fortran

Abstract:

An analysis of the vapor compression cycle and the main components of an air source heat pump during steady-state operation has been performed with emphasis on fundamental phenomena taking place between key locations in the refrigerant system. The basis of the general heat pump model formulation is the logic which links the analytical models of heat pump components together in a format requiring an iterative solution of refrigerant pressure, enthalpy and mass balances. The modeling effort emphasis was on the local thermodynamic phenomena which were described by fundamental heat transfer equations and equation of state relationships among material properties.