In this study, performance analysis of solar-powered absorption refrigeration (SPAR) system is evaluated using hourly atmospheric air temperature and solar radiation data in Mersin city. Ammonia-water (NH 3 -H 2 O) as refrigerant-absorbent pair and evacuated tube solar collector are selected for the design of the SPAR system. First, hourly cooling loads of the selected building are calculated. Then, thermodynamic analysis of the SPAR system is conducted according to this cooling load and required solar collector area is calculated for the air-conditioned space. Obtained results show that the maximum coefficient of performance (COP) value is observed in May, while the lowest value is seen in July and August. When the maximum solar radiation rate is observed to be 0,878kW/m 2 on 23 June at 01:00 p.m., the COP is calculated as 0,434. Finally, the optimum collector area is determined to be 50 m 2 for air-conditioned space area of 30 m 2 .