초록 ▼

A system and process for optimizing the power drawn on a transport refrigeration system under power limitation conditions is disclosed. The invention includes a microprocessor control which adjusts the desired superheat level for the system, thereby altering the expansion valve, thereby limiting the

A system and process for optimizing the power drawn on a transport refrigeration system under power limitation conditions is disclosed. The invention includes a microprocessor control which adjusts the desired superheat level for the system, thereby altering the expansion valve, thereby limiting the mass flow rate of refrigerant through the system without having a comparable drop in refrigeration capacity as would a similar actuation of the suction modulation valve.

대표청구항 ▼

[ We claim:] [1.] A process for optimizing capacity in a refrigeration unit under controlled, power limitation conditions, said process comprising the steps of:i monitoring the current draw of the refrigeration unit;ii comparing said current draw to a preset desired current draw limit; andiii select

[ We claim:] [1.] A process for optimizing capacity in a refrigeration unit under controlled, power limitation conditions, said process comprising the steps of:i monitoring the current draw of the refrigeration unit;ii comparing said current draw to a preset desired current draw limit; andiii selectively increasing the desired superheat setting when said current draw exceeds said preset desired current draw limit, thereby restricting the electronic expansion valve so as to decrease the mass flow of the refrigeration unit and to decrease the resulting power consumption of said refrigeration unit.