Title:
PV cooperation storage hot water system hot-water supply system
Document Type and Number:
Japanese Patent JP6221933
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To assure a day time boiling calory while restricting power purchase amount even if a photovoltaic power generation amount is reduced than its estimated value.SOLUTION: PV coordination hot water storage type hot water system comprises a photovoltaic power generation device 6 and a hot water machine 10. A control device 50 estimates a tomorrow's photovoltaic power generation amount on the basis of weather information got by weather information getting means 60 and sets the tomorrow's daytime target boiling temperature and a daytime target boiling hot water amount. In addition, a nighttime target heat storage amount used at a nighttime boiling operation on the day is set on the basis of the estimated hot water supply load and the nighttime target heat storage amount is corrected to decrease only by an amount corresponding to the tomorrow's daytime planned boiling heat calory. In addition, when the tomorrow's daytime boiling-up operation is executed, the control device 50 changes the daytime target boiling-up temperature to a temperature lower than the yesterday's set value when the actual photovoltaic power generation is lower than the estimated photovoltaic power generation amount.
Inventors:
Tomohiro Akagi
Mune Hiraoka
Mune Hiraoka
Application Number:
JP2014103458A
Publication Date:
November 01, 2017
Filing Date:
May 19, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F24H4/02
Domestic Patent References:
| JP2008002703A | ||||
| JP2013148287A |
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Yasuo Koizumi
Hideki Takahashi
Yasuo Koizumi