A solar refrigerator is made of a solar collector and a refrigeration
system. Real solar refrigerators usually operate between two limits, m
aximum COP (coefficient of performance) and maximum cooling load. The
relationships between the solar collector temperature, COP and cooling
load are derived in this paper. The optimum collector temperatures un
der the conditions of either maximum COP or maximum cooling load are f
ound. The results provide a theoretical base for designing real solar
refrigeration systems.