Title:
CONTROL DEVICE, HEAT SOURCE SYSTEM, METHOD FOR CALCULATING LOWER LIMIT OF COOLING WATER INLET TEMPERATURE, CONTROL METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/054181
Kind Code:
A1
Abstract:
The purpose of the invention is to provide a control device that can calculate the lower limit of cooling water inlet temperature according to the operation status of a refrigerator. A control device comprises: a lower limit calculation unit that calculates the lower limit of cooling water outlet temperature, where a prescribed required temperature difference is added to the cooling water outlet temperature of a refrigerator, and an inlet-outlet required temperature difference, which is the difference between the cooling water outlet temperature and the cooling water inlet temperature in the refrigerator and which is generated according to the operation status of the refrigerator, and that calculates a cooling water inlet temperature lower limit calculated value for the refrigerator by subtracting the inlet-outlet required temperature difference from the cooling water outlet temperature lower limit value; and a lower limit value determination unit that fixes the cooling water inlet temperature lower limit calculated value as the cooling water inlet temperature lower limit value.
Inventors:
SAKAGUCHI KATSUYA (JP)
NIKAIDO SATOSHI (JP)
TAKENAKA YUTAKA (JP)
NIKAIDO SATOSHI (JP)
TAKENAKA YUTAKA (JP)
Application Number:
PCT/JP2019/025915
Publication Date:
March 19, 2020
Filing Date:
June 28, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
F25B1/00; F24F5/00; F24F11/83; F28F27/00
Foreign References:
| JP2014149110A | 2014-08-21 | |||
| JP2004150733A | 2004-05-27 | |||
| JP2016060287A | 2016-04-25 | |||
| JP2018004097A | 2018-01-11 | |||
| JP2010054152A | 2010-03-11 | |||
| JP2007298235A | 2007-11-15 | |||
| JP2005155973A | 2005-06-16 | |||
| JP2000337729A | 2000-12-08 | |||
| US5040377A | 1991-08-20 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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