The objective of this paper is to design and study an environment friendly solar-powered refrigeration system using a solar flat-plate collector and NH₃-H₂O mixture as the working fluid. The cooling capacity and the coefficient of performance (COP) of the system are analysed (Mathematical modelling) by varying all independent parameters such as condenser pressure, evaporator pressure, mass flow rate, NH₃ concentration and inlet generator temperature. The cooling performance of the system is compared with conventional vapour-compression systems (VCRS) for ammonia refrigerant (R-717).