Modeling and Simulation of Thermal and Hydrodynamic Performance of Heat Exchangers for Automotive Applications - Part I: Condensers

Paper #:
  • 970829

Published:
  • 1997-02-24
Citation:
Mathur, G., "Modeling and Simulation of Thermal and Hydrodynamic Performance of Heat Exchangers for Automotive Applications - Part I: Condensers," SAE Technical Paper 970829, 1997, https://doi.org/10.4271/970829.
Author(s):
Pages:
11
Abstract:
A computer program has been developed to optimize the performance of finned tube condensers. The developed program is used to predict the thermal and hydrodynamic performance of finned tube condensers. The model is based on a steady-state finite difference model. The correlations for predicting the heat transfer and pressure drop are used from the literature.Experimental test data is used to validate the developed model for a finned tube condenser with R-134a as the working fluid. The simulated performance for the condenser heat transfer is within ±7%; and refrigerant pressure drop is within 10% of the experimental data. The simulated data for the condenser coil shows that 16% of the total heat transfer area is occupied by single-phase vapor flow where the superheated vapor are cooled to the saturated conditions; 72% by condensation; and the remaining 12% is controlled by the single-phase liquid flow which results in subcooling.Work is continuing on predicting the performance of the serpentine and parallel flow condensers by using the developed model.
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