MODELLING AND THERMAL PERFORMENCE ANALYSIS OF EVAPORATIVE COOLING SYSTEM

Abstract

Evaporative cooling is a passive method which can save the fossil fuel reserves or contribute to prevent the use of gas CFC in refrigeration, which contribute to global warming. Evaporative cooling is an environment friendly technology and can be used as an alternative to mechanical refrigeration systems. It is a cost effective technology for preserving food and vegetables, therefore this is an eco-friendly alternative to mechanical refrigeration systems. In this project we have developed thermal model for evaporative cooling for (i) Normal water temperature (ii) Elevated water temperature (iii) Chilled water temperature. The results were compared with experimental results found out through experiments conducted on the experimental test setup for several days. It was observed that theoretical results well matches with experimental measurements, therefore the model can be used for analyzing performance of any type of evaporative cooling system. Mathematical expressions between various parameters have been developed based upon the experimental data. These expressions have been developed for individual water temperature as well as for combined data for all water temperatures.