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Patent Searching and Data


Title:
REFRIGERATION CYCLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/234824
Kind Code:
A1
Abstract:
This refrigeration cycle system comprises: a refrigerant circuit including a compressor; a flowmeter that detects the flow rate of a refrigerant circulating through the refrigerant circuit; an intake temperature detector that detects the intake gas temperature of the refrigerant entering the compressor; a discharge temperature detector that detects the discharge gas temperature of the refrigerant that is discharged from the compressor; a condensation temperature detector that detects the condensation temperature of the refrigerant; an evaporation temperature detector that detects the evaporation temperature of the refrigerant; a supercooling detector that is provided between an expansion valve and the compressor, and that detects the supercooling temperature; a determination means for determining whether the compressor is in normal operation on the basis of the discharge gas temperature; a usability calculation means for calculating, if the compressor is determined to be in normal operation, refrigeration usability on the basis of the flow rate and the enthalpy difference determined from the evaporation temperature, the condensation temperature, the intake gas temperature, the discharge gas temperature, and the supercooling temperature; and a fee calculation means for calculating the fee for using the refrigeration cycle system on the basis of the refrigeration usability.

Inventors:
KURITA SHIN (JP)
Application Number:
PCT/JP2018/021537
Publication Date:
December 12, 2019
Filing Date:
June 05, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02
Foreign References:
JP2005180870A2005-07-07
JP2001076041A2001-03-23
JPH02306046A1990-12-19
JP2005265286A2005-09-29
JPH09133390A1997-05-20
JP2003056963A2003-02-26
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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