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EVSIM: An Evaporator Simulation Model Accounting for Refrigerant and One Dimensional Air Distribution.


pdf icon EVSIM: An Evaporator Simulation Model Accounting for Refrigerant and One Dimensional Air Distribution. (5913 K)
Domanski, P. A.

NISTIR 89-4133; 142 p. August 1989.

Sponsor:

Department of Energy, Washington, DC

Available from:

National Technical Information Service
Order number: PB89-235881

Keywords:

computerized simulation; air conditioning equipment; evaporators; air conditioners; heat exchanges; refrigerants; air circulation; thermodynamics; models; computer programs

Abstract:

The report describes a computer model, EVSIM, of a refrigerant-to-air heat exchanger of the type used in residential air conditioning as an evaporator. The model provides performance predictions of a one-slab or two-slab evaporator for a given refrigerant enthalpy at the coil inlet, saturation temperature and superheat at the coil outlet, and at imposed one dimensional air mass flow distribution over the coil face. The model accounts for air distribution and for complex refrigerant circuitry designs by simulating refrigerant distribution. Performance of the coil is calculated employing a tube-by-tube scheme. The report includes a User's Guide and a listing written in FORTRAN 77.