The Coefficient of Performance (COP) is adopted
generally to analyse the performance of the refrigeration
system, the refrigeration system with higher refrigeration
and lower input power will have the higher COP
value and vice verse. In industrial and commercial
refrigeration, the purpose of refrigeration produced is
for what to be processed. For example, the refrigeration
produced by the refrigeration system in quick-freezer is
used to cool down and to freeze the foods. Therefore,
another important issue for the refrigeration equipment,
whose importance is as same as that of how to produce
the maximum refrigeration, is how to use the refrigeration
produced effectively.