METHOD FOR PROVIDING REFRIGERATION USING TWO CIRCUITS

摘要

A method for providing refrigeration wherein a first multicomponent refrigerant is condensed (41) to form a saturated liquid and vaporized (42) against a condensing (43) second multicomponent refrigerant which has a dew point less than the dew point and preferably the bubble point of the saturated liquid, and has a bubble point greater than that of the vaporizing first multicomponent refrigerant, and after providing refrigeration to a refrigeration load (150), may be superheated against the condensing first and second multicomponent refrigerants.