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Thermodynamic Analysis of Refrigerant-DMF Solutions in Solar-Driven Absorption Refrigeration System

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Abstract: Thermodynamic performances of a solar driving single-stage and intermittent absorption refrigera-tor using R22+DMF, R134a+DMF, R32+DMF as working fluids were analyzed respectively. The circulation ratio f was considered as an additional optimization parameter. The results show that R134a+DMF mixture may be considered as a good candidate for application to solar refrigeration systems due to its relative low pressure and higher coefficient of performance. It will present interesting properties at moderate condensing and absorbing temperatures (298K-308K) when the evaporating temperature in the range from 278K to 288K which are highly useful for food preservation and for air conditioning in rural areas.  Keywords: Solar refrigeration; Modified intermitted system; Parametric study
 
 
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