Title:
REFRIGERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/141388
Kind Code:
A1
Abstract:
According to the present invention, a refrigeration system calculates the internal absolute humidity of a refrigerated warehouse on the basis of the internal relative humidity and the internal temperature of the refrigerated warehouse. The refrigeration system sets an evaporation temperature and an evaporator fan airflow for a unit cooler installed in the refrigerated warehouse such that, when the internal absolute temperature is larger than the absolute humidity at 0°C, the internal absolute humidity is lowered. The refrigeration system checks that, before the internal absolute humidity falls to the absolute humidity at 0°C, the internal temperature has not fallen to around 0°C and once the refrigeration system has confirmed that the internal absolute temperature has fallen, raises the evaporation temperature and the evaporator fan airflow for the unit cooler. While feeding back the internal absolute humidity and the internal temperature, the refrigeration system controls the evaporation temperature and the evaporator fan airflow for the unit cooler and, upon confirmation that the internal absolute humidity has become equal to or lower than the absolute humidity at 0°C, the refrigeration system operates the unit cooler for a predetermined time in a state in which the internal temperature is around 0°C.
Inventors:
KONTANI TAKUYA (JP)
TAKATA SHIGEO (JP)
TAKATA SHIGEO (JP)
Application Number:
PCT/JP2016/054658
Publication Date:
August 24, 2017
Filing Date:
February 18, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25D13/00; F25D11/00; F25D21/04; F25D21/06
Foreign References:
| JPH06229659A | 1994-08-19 | |||
| JPH11270946A | 1999-10-05 | |||
| JPH0518660A | 1993-01-26 | |||
| JP2014020715A | 2014-02-03 | |||
| JPS61107070A | 1986-05-24 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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