Title:
HOT WATER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP3915538
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hot water supply system improving a COP (Coefficient Of Performance), saving energy, and reducing the electricity rate.
SOLUTION: This hot water supply system boils hot water in a refrigerant circuit using supercritical refrigerant used in a supercritical state for the refrigerant. The refrigerant circuit is provided with an expander 12 to recover a power generated in the expander 12. The expander 12 and a contractor 10 have a common drive shaft 19, and the power generated by the expander 12 is transmitted to the compressor 10 via the drive shaft 19. The hot water boiled in the refrigerant circuit is used for the floor heating.
Inventors:
Katsumi Hokoya
Moriwaki Michio
Hara Hijiki
Moriwaki Michio
Hara Hijiki
Application Number:
JP2002042928A
Publication Date:
May 16, 2007
Filing Date:
February 20, 2002
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F24H1/00; F04C18/356; F04C23/00; F24D7/00; F25B1/00; F25B1/10; F25B9/00; F25B9/06; F25B30/02; (IPC1-7): F24H1/00; F24D7/00; F25B1/00; F25B1/10; F25B30/02
Domestic Patent References:
| JP2000329416A | ||||
| JP10019401A | ||||
| JP2000234814A | ||||
| JP2001082803A | ||||
| JP2002005515A | ||||
| JP8042930A | ||||
| JP5322347A | ||||
| JP2000171102A |
Attorney, Agent or Firm:
Masahiro Nishimori