A system and method for improving efficiency of a refrigerant based system

摘要

Provided are a refrigerant based system (36) and a method for improving efficiency of the refrigerant based system (36). The refrigerant based system (36) comprises a heat exchanger (30) a heat exchanger temperature sensor (34) at least one compressor (20) a microprocessor (52) for controlling the compressor (20) a medium temperature sensor (32) and a computer readable storage medium (50) encoded with computer readable instructions for causing the microprocessor (52) to execute the operation steps. The compressor (20) will be turned off in a controlling step if the following conditions are satisfied: 1) the temperature of the medium has reached a first predetermined value; 2) the temperature of the heat exchanger (30) has reached a value below a compressor control temperature; 3) the compressor (20) has operated for a predetermined period of operation time; and 4) the minimum heat exchanger temperature has been found. The refrigerant based system (36) has the advantage of saving running cost.