Abstract: A solar driven ammonia absorption refrigeration system was designed, constructed and tested. It was an intermittent system where ammonia and calcium chloride were used as refrigerant and absorbent respectively. A small capacity vapor absorption system was first analyzed and its characteristics at various points were measured. The main components like evaporator, condenser and generator were designed based on capacity. The necessary heat and mass transfer equations describing the working properties were specified .The experimentally obtained COP was in the range of 0.104-0.126, average 0.118. Information on designing the condenser, evaporator, and generator of the unit has been presented.