Refrigeration system

Abstract

This refrigeration system is for cooling a heat medium for supplying cooling energy to an object of cooling, and comprises: a turbomachine comprising a turbine, a compressor, and an electric motor; a closed loop including a compressed fluid line for guiding a compressed fluid that has been compressed by the compressor to the turbine, and an expanded fluid line for guiding an expanded fluid that has been expanded by the turbine to the compressor; a cooler for cooling the compressed fluid flowing through the compressed fluid line; a heat medium cooler for transferring heat between the expanded fluid flowing through the expanded fluid line and the heat medium; a regenerative heat exchanger for transferring heat between the compressed fluid having passed through the cooler and the expanded fluid having passed through the heat medium cooler; and an electric motor cooling line for extracting the compressed fluid from between the cooler on the compressed fluid line and the regenerative heat exchanger, and supplying the compressed fluid to a casing accommodating the electric motor.

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