Thermodynamic Modeling of Parallel Flow Condenser for Automotive Air Conditioning System

자동차용 평행류 응축기의 열성능 모델링

  • 김일겸 (인하대학교 기계공학과 대학원) ;
  • 고재윤 (인하대학교 기계공학과 대학원) ;
  • 박상록 (인하대학교 기계공학과 대학원) ;
  • 임장순 (인하대학교 기계공학과)
  • Published : 2001.08.01

Abstract

In this study, a simulation program has been developed to predict the performance of a parallel flow condenser of an air conditioning system for an automobile. The well-known correlations for he heat transfer rates and the pressure drops are included in this model. It is fond that the numerical model can predict the heat transfer rate and the pressure drop accurately. As the condensing pressure increases of fixed air inlet temperature, the heat transfer rate increases and the pressure drop decreases. The effect of he degree of subcooling on the performance of the condenser is greater than that of the degree of super-heating because the ratio of the area occupied by he tow-phase refrigerant the total area is significantly affected by he degree of subcooling rather than the degree of superheating.

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References

  1. Compact Heat Exchanger(3rd ed.) Kays, W. M.;London, A. L.
  2. IMechE v.C496/081 Heat Transfer and Friction Correlations for the Louver Fin Geometry Webb, R. L.;Chang, Y. J.;Wang, C. C.
  3. University of California Publications on Engineering v.2 Dittus,F.W.;Boelter,L.M.K.
  4. Proc. 5th Int. Heat Transfer Conference v.79 A Dimensionless Correlation for Heat Transfer in Forced Convection Condensation Cavallini,A.;Zecchin,R.
  5. Convective Boiling and Condensation Collier, J. G.
  6. European Two-Phase Flow Group Meeting Improved Friction Pressure Drop Correlation for Horizontal and Vertical Two-Phase Pipe Flow Friedel, L.
  7. Fluid Mechanics(6th ed.) Victor, L. S.;Benjamin, E. W.
  8. Thermophysical properties of environmentally acceptable flurocarbons-HFC-134a and HCFC-123- Japanese association of refrigeration and Japan fron gas association
  9. Fundamentals ASHRAE Handbook ASHRAE
  10. Design and Optimization of Thermal Systems Jaluria, Y.