IJSRSET17324 | 01 March 2017 | Accepted: 08 March 2017 | March-April-2017 [(2)2: 46-50] © 2017 IJSRSET | Volume 3 | Issue 2 | Print ISSN: 2395-1990 | Online ISSN : 2394-4099 Themed Section: Engineering and Technology 46 Study the Effect on Evaporative Cooling for Different Contact Profiles of Wetted Surfaces P. L. Sarode* 1 , V. R. Baviskar 2 , N. P. Salunke 3 *1 Assistant Professor, Mechanical Department, RCPIT Shirpur, Maharashtra, India 2 PG Student, Mechanical Department, RCPIT Shirpur, Maharashtra, India 3 Associate Professor, Mechanical Department, RCPIT Shirpur, Maharashtra, India ABSTRACT The aim of this review paper is to study about evaporative cooling in hot and dry climate. In this study it been observed that the how passive cooling methodology is useful in controlling surface temperature and produces cooling effects in hot climate condition, so for in this study work different materials for wall is been used also different profile shapes has been proposed for the experimentation like cylindrical, rectangular and drop like shape along with operating conditions etc. and come up with a conclusion that the contact of evaporative surface with a dry air plays an important role in the process of evaporative cooling. Keywords : Evaporative Cooling, Cooling Materials, Passive Cooling I. INTRODUCTION There are occasions where air conditioning, which stipulates control of humidity up to 50 % for human comfort or for process, can be replaced by a much cheaper and less energy intensive evaporative cooling. There are two methods of evaporative cooling i.e. direct evaporative cooling and indirect evaporative cooling. The direct evaporative cooling is very efficient and having very low cost as compare to other systems. Due to hot environment air conditioning systems are largely used, therefore electricity consumption increased[1].The two stage evaporative cooling system is more effective in hot and humid climate now a day (hot climate) demand of cooling equipment increases and in different varieties they available in market, for the human comfort evaporative cooling mostly used in terms of lower cost, lower electricity consumption, and lower ozone depletion[2]. By increasing energy crisis in the world people can used efficient equipment for cooling in building construction porous materials are more effective for cooling [3]. The evaporative cooling is a low carbon and economical method for cooling buildings in hot and dry climate. In the evaporative cooling wet media materials plays a very important role for cooling. Different materials are used such as metal foams, organic impregnated materials (Aspen), PVC padding, Celdek paper and different fibers etc.[4].Porous ceramic materials are used as a wetting media in evaporators [5] In evaporative cooling systems are more effective when the maximum contact of dry superheated air with wetted surface takes place the water is absorbed the sensible heat of air due to this water vaporizes and this heat gives back to air in the form latent heat [6]. In urban area where climate is hot and dry there necessary to provide thermal comfort, there are natural covers i.e. trees and plants natural fibers replaced by building construction porous ceramic materials are used, by using this material cooling wall constructed having high water sucking ability[7]and this using this wall cooling comfort can provided[8]. Water evaporative cooling towers are suggested for high rise buildings with more than 100 floors [9]. The roof lawns are also more effective not only for cooling but also for energy conservation. Solar heating and cooling technologies are very important role plays in building construction for evaporative cooling [10]. The effectiveness of direct evaporative cooling is more as compare to indirect evaporative cooling [11]. Practically porous material or pads provide more water surface [12]. Honeycomb paper also used having more hygroscopic effect [13]. Evaporative cooling devices rejected the