A simple model for evaporative cooling system of a storage space in a tropical climate
2013
Ndukwu, Chinenyea (Michael Okpara University of Agriculture, Umudike (Nigeria). College of Engineering and Engineering Technology, Department of Agricultural and Bio Resources Engineering) | Manuwa, Sethb (School of Engineering and Engineering Technology, Akure (Nigeria). Department of Agricultural Engineering) | Olukunle, Olawaleb (School of Engineering and Engineering Technology, Akure (Nigeria). Department of Agricultural Engineering) | Oluwalana, Babatundec (School of Agriculture and Agricultural Technology, Akure (Nigeria). Department of Food Science and Technology)
This paper deals with the development of a simple mathematical model for experimental validation of the performance of a small evaporative cooling system in a tropical climate. It also presented the coefficient of convective heat transfer of wide range of temperatures based on existing model. Extensive experiments have been performed during January to February 2013 for a small evaporative cooler designed for storage of fruits and vegetables. The model considered the thermal properties of the material of the cooling pad and assumed that the cooling pad is a plain porous wall bounded by two convective airs at different temperature at the two surfaces. The predicted and experimental value of various cooling efficiency at different range of inlet temperature has been determined. In addition the values of the coefficient of convective heat transfer for a wide range of temperatures is also presented.
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