Patent ID: 8966920
Filing Date: 2015-03-03
Classification: F25B,Y02B

Abstract:
1. A refrigeration system, comprising: a refrigerant circuit including a compressor and an expander which expands a refrigerant and generates power, for circulating the refrigerant and performing a refrigeration cycle, wherein the refrigeration system includes a stop instruction section which outputs an operation stop signal under a predetermined condition, and an equipment control section which, when the operation stop signal is output from the stop instruction section, controls a rotational speed of at least one of the compressor or the expander such that a ratio of a rotational speed of the expander to a rotational speed of the compressor will be a second ratio higher than a first ratio that is a ratio of a rotational speed of the expander to a rotational speed of the compressor in an operation before the output of the operation stop signal from the stop instruction section, and thereafter stops the compressor and the expander.