MODELING AND EXPERIMENTAL PERFORMANCE EVALUATION OF PARALLEL FLOW MICRO-CHANNEL CONDENSERS

Williams Gonzales M.

Resumen


This paper reports results obtained from a theoretical and experimental study of micro channels/louvered fins condensers for automotive applications. A computer model has been developed based upon three zones related to the thermodynamic states of the refrigerant in the condenser. Results from the model for refrigerant HFC-134a are compared to experimental those from an experimental bench developed for that purpose.

Palabras clave


Parallel Flow Condenser, Micro Channels, Automotive, Air Conditioning Systems

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Referencias


R.A. Awf. Modelling of condensers, evaporators and refrigeration circuit in automobile air conditioning systems, Doctoral Thesis, Universidad de Valladolid, Valladolid, Spain, 1995. (in Spanish).

S. J. Dittus and L. M. Boelter. University of California publications on engineering, vol.2, pp. 443, 1930.

M.R. Ianella, Theoretical and experimental analysis of an automobile air conditioning system, Master of Science Thesis, Universidade de São Paulo, São Carlos, Brazil, 1998. (in Portuguese)

W.G. Mamani. Simulation of automobile refrigeration systems, Master of Science Thesis, Universidade de São Paulo, São Carlos, Brazil, 1997.(in Portuguese)

M.M. Shah. “A general correlation for heat transfer during film condensation in tubes,” International Journal of Heat and Mass Transfer, vol.22, no.4, pp.547-556, 1979.

C.Y. Yang and R.L. Webb. “Friction pressure drop of R-12 in small hydraulic diameter extruded aluminum tubes with and without micro-fins,” International Journal of Heat and Mass Transfer, vol.39, no.4, pp. 801-809, 1996.


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