DESIGN AND FABRICATION OF SOLAR AIR COOLER
Kranti Dhruw,MD Akram,Luckky Kumar,Gulshan Salam
Department of Mechanical Engineering GEC, Raipur
ABSTARCT
A revived interest in solar-powered air cooling has been seen in recent years as a result of the increased awareness of global warming and other environmental challenges. This study provides a description of the current developments in solar-powered air conditioning. Absorption chillers are a tried-and-true technology that utilizes LiBr–water as the working fluid combination. These chillers are the primary foundation upon which closed-cycle heat-powered cooling systems. Because of recent advancements in gas-fired systems of this kind, double- and triple-effect chillers are now available. These chillers have a coefficient of performance (COP) that is much greater than their single-effect counterparts. This makes it feasible to minimize the amount of solar heat that is needed for each kilowatt-hour of cooling. These systems, on the other hand, need for solar collectors that operate at high temperatures. This article provides an explanation of the fundamentals of multi-stage absorption systems. In this article, an economic comparison is presented, which demonstrates that the solar component of the system accounts for the majority of the overall system cost. As of right now, the alternative with a high coefficient of performance and a high temperature is still more expensive than the one with a low temperature. Described below are open-cycle desiccant systems that use either solid or liquid sorbents as its components. Open-cycle absorption and desiccant systems have been developed for use with low temperature heat sources such as flat plate solar collectors. This is in contrast to the primary focus of research on novel closed-cycle absorption systems, which has been directed toward increasing the operating temperature in order to improve efficiency through multi-staging. In this article, a revolutionary open-cycle (DER) system is presented. This system makes it feasible to utilize solar heat at relatively low temperatures, which allows for the production of chilled water and cold, dehumidified air in varying amounts, depending on the load..
