Design, Development, and Numerical Analysis of Mist Nozzle and Its Impact on Performance Parameters of an Evaporative Cooler

The comfort cooling system is considered one of the major elements that absorbs high energy from all today’s essential commodities. And, it is one of the sources for global warming. An evaporative cooling system is commonly referred to as an alternative to air-conditioning systems working on vapour compression refrigeration cycles. Comparatively, the evaporative cooling systems consume 55–75% less energy compared to the phase change refrigeration system. In this research article, the development of a mist nozzle and its CFD simulation is carried out at different inlet water temperatures and its effect on pressure drop at the outlet end of the nozzle. By measuring the reduction in temperature, cooling capacity, and saturation efficiency, the experimental analysis leads to the discovery of performance characteristics such as cooling effect. These performance parameters were measured in a variety of environments and with variable air mass flow rates. Using the experimental data, a linear regression analysis is used to construct an empirical association to forecast the decline in air temperature. The experimental cooling air temperature and the predicted cooled air temperature are validated and found with good agreement.