about ppt compressor less refrigerator using peltier

Abstract

The impact of on-going progress in Science and Technology has created a variety of systems that can be used in the generation of power from Renewable Sources of energy and one of these is Solar Energy. The project which we have prepared utilizes solar energy with the use of Thermoelectric Module and Photovoltaic Module for generation of energy which we further use for cooling and heating effect. It is basically a portable cooler cum heater which is mainly designed for the convenience of the travelling people and the militaries. The most important utilization of this portable cooler is for the preservation of insulin in extreme conditions. The precise level of cooling power below which the thermoelectric method is preferable depends on a number of factors, but for most purposes it is ten watts and will remain in this region until there is a substantial improvement in the figure of merit of the thermo elements. A Thermoelectric module (TEM) is used instead of compressor so that it become portable, as it is based on the principles of Peltier effect. The use of Peltier effect is to create a heating side and a cooling side and also to maintain effectiveness. Thermoelectric cooler (TEC) is a solid state heat pump which uses the semiconductor materials, by Peltier effect, to provide instantaneous cooling or heating. It has the advantage of having no moving parts and thus maintenance free.The solar thermoelectric avoids any unnecessary electrical hazards and provides a very environment friendly product and also the thermoelectric refrigerator does not produce chlorofluorocarbon (CFC). It is pollutant free-contains no liquids or gases, portable, compact, creates no vibration or noise because of the difference in the mechanics of the system. It is a prototype and its components are available commercially. Keywords- P.V- photo voltaic, C.O.P- coefficient of performance, T.E.C- thermoelectric cooler,T.E.M- thermoelectric module, S.T.C- standard test condition, D.C- direct current, A.C- alternating current, C.F.C-chlorofluorocarbon

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