Heat transfer parameter models and correlations for cooling applications

Abstract

 Cooling technology is widely used in a variety of engineering applications ranging from cooling of electronic devices to food cooling. It makes this industry play an important role in the economies. In practice there is an urgent need to design a cooling system with the optimum processing conditions and to provide energy saving along with the high quality products. In this respect, accurate determination of the heat transfer parameters for the cooling operation is essential. In this paper, recently developed models and correlations, e.g., thermal diffusivity and heat transfer coefficient models, and Nusselt–Reynolds and Fourier–Reynolds correlations to determine the cooling process and heat transfer parameters are presented with an illustrative example. Another important point is that the cooling parameters are incorporated into the heat transfer parameters and correlations. It is believed that these models and correlations are of great significance to refrigeration industry.