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INFLUENCE OF THE THERMAL CONTACT RESISTANCE ON THE FIN-TUBE HEAT EXCHANGER PERFORMANCE  

Yoo, S.S. (전남대학교 대학원 기계공학과)
Lee, M.S. (전남대학교 대학원 기계공학과)
Han, B.Y. (전남대학교 대학원 기계공학과)
Park, H.K. (전남대학교 기계시스템공학부)
Publication Information
Journal of computational fluids engineering / v.15, no.1, 2010 , pp. 46-55 More about this Journal
Abstract
In this study, the heat transfer and fluid flow characteristics of a condenser for a refrigerator are analyzed with the numerical method. The main objective of the study is to obtain basic data in order to develop a new type of condenser focused on an influence of thermal resistance of air side and thermal contact resistance on the heat transfer performance. The CFD technique was used for whole study, and experiments were performed in order to verify the reliability of the numerical analysis and predict the thermal contact resistance. In this study, a heat exchanger sample was made of a part of condenser to make the experimental and numerical analysis simple and efficient. Water was used for the inner working fluid of the heat exchanger, and an experimental apparatus was composed concisely. A heat exchanger sample of tube type was used to verify the reliability of numerical analysis, and a heat exchanger of fin and tube type was used to predict the ratio of thermal contact resistance to the overall thermal resistance.
Keywords
CFD; Heat Exchanger; Condenser; Thermal Contact Resistance;
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