Computer Simulation of Refrigerant Vapor Condenser in Transient Operation

Paper #:
  • 951014

Published:
  • 1995-02-01
Citation:
Chiang, E. and Ng, S., "Computer Simulation of Refrigerant Vapor Condenser in Transient Operation," SAE Technical Paper 951014, 1995, https://doi.org/10.4271/951014.
Pages:
10
Abstract:
The formulation of mathematical model for the computational simulation of transient temperature response and phase change of refrigerant in a vapor condenser of an automotive air conditioning unit is described. A demonstrative computational simulation of a sample air cooled vapor condenser charged with Freon 12 is presented. The computational analysis predicts an initial surge and followed by an oscillation of the condensate outflow rate from the condenser when the air-conditioning unit is started, and the tube length required for complete condensation of inflow vapor is a maximum value at start up. The rise of the temperatures of the condenser tubes and cooling air flow during the start-up and load change operations rate found to be gradual but the scale of these temperature changes are considered small.
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