Abstract

In the present work, a combination of gas–solid sorption system, namely Adsorption Cooling and Resorption Heating System (ACRHS) in which cooling and heating effects are observed by adsorption and resorption processes, respectively, is thermodynamically analyzed using different halide salts MnCl2, FeCl2, CaCl2 and SrCl2. The adsorption heat, which is lost in basic adsorption or resorption cooling system, is transformed into useful high temperature thermal energy. The overall coefficient of performance of the ACRHS is improved due to the production of heating effect in addition to cooling effect. This dual effect of heating and cooling is produced by a single heat input which is realized because of the recovery of heat between two salt beds (high and medium temperature salt). MnCl2 is having low desorption enthalpy and high adsorption capacity due to which the COP is 34% higher than that for FeCl2. The maximum value of COP of ACRHS is found to be 0.72

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