US 12,331,958 B2
Monitoring and controlling domestic hot water production and distribution
Mehran E Zareh, Ostend (BE); and Kristof Vandemergel, Ostend (BE)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP); and DAIKIN EUROPE N.V., Ostend (BE)
Appl. No. 17/642,788
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP); and DAIKIN EUROPE N.V., Ostend (BE)
PCT Filed Dec. 9, 2020, PCT No. PCT/JP2020/045775
§ 371(c)(1), (2) Date Mar. 14, 2022,
PCT Pub. No. WO2021/124997, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19218588 (EP), filed on Dec. 20, 2019.
Prior Publication US 2022/0397306 A1, Dec. 15, 2022
Int. Cl. F24H 15/172 (2022.01); F24D 19/10 (2006.01); F24H 1/20 (2022.01); F24H 15/148 (2022.01); F24H 15/156 (2022.01); F24H 15/176 (2022.01); F24H 15/225 (2022.01); F24H 15/238 (2022.01); F24H 15/25 (2022.01); F24H 15/414 (2022.01); G05B 19/4155 (2006.01); F24H 15/215 (2022.01); F24H 15/219 (2022.01); F24H 15/395 (2022.01)
CPC F24H 15/172 (2022.01) [F24D 19/1054 (2013.01); F24D 19/1063 (2013.01); F24H 1/20 (2013.01); F24H 15/148 (2022.01); F24H 15/156 (2022.01); F24H 15/176 (2022.01); F24H 15/225 (2022.01); F24H 15/238 (2022.01); F24H 15/25 (2022.01); F24H 15/414 (2022.01); G05B 19/4155 (2013.01); F24H 15/215 (2022.01); F24H 15/219 (2022.01); F24H 15/395 (2022.01); G05B 2219/50333 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of at least one of monitoring and controlling at least one of domestic hot water production and distribution, the method comprising:
using a controller including a processor to execute:
detecting at least two real temperatures of a fluid stored in a heat storage tank at two different positions along a height of the heat storage tank at least at points in time, the fluid being sanitary hot water, and the heat storage tank being a pressurized tank;
acquiring a plurality of virtual temperatures of the fluid stored in the heat storage tank at different positions along the height of the heat storage tank by applying a virtual-temperature-sensor-algorithm to the detected at least two real temperatures detected at least at the points in time;
acquiring at least one of a temperature distribution pattern of heat stored in the heat storage tank or corresponding heat distribution pattern data by applying a temperature-distribution-pattern-algorithm to the at least two real temperatures detected at least at the points in time and the plurality of virtual temperatures; and
controlling the heat storage tank based on the at least one of the temperature distribution pattern and the corresponding heat distribution pattern data.