Title:
COOLING METHOD AND COOLING APPARATUS
Document Type and Number:
WIPO Patent Application WO/1999/049267
Kind Code:
A1
Abstract:
In a cooling apparatus for cooling air, a metal with high heat conductivity, such as copper or aluminum, has generally been used as the material of a heat exchanger with a view to facilitating heat absorption by the refrigerant. However, in such a heat exchanger, the temperature of the refrigerant becomes the same as the temperature of the heat exchanger because of the high heat conductivity, resulting in dryness of the interior of the refrigerator or the room. Moreover, since dryness decreases the latent heat of the air, no cooling is possible unless the temperature difference between the inlet and outlet of the heat exchanger is 10 °C or more. This cooling apparatus uses a material with low heat conductivity for its heat exchanger with a view to entailing no humidity reduction, and decreasing the difference between the inlet temperature and outlet temperature of its heat exchanger, i.e., lessening the energy loss. Hence the surface temperature of the heat exchanger is higher than the refrigerant temperature, resulting in a rise in dew point. As a result, the space in the refrigerator or the room is not deprived of humidity. Furthermore, since the humidity does not lower, the latent heat of the air is not reduced, so that sufficient cooling can be achieved even if the temperature difference between the outlet and the inlet of the heat exchanger is small.
Inventors:
NAGAOKA MORITOSHI (JP)
Application Number:
PCT/JP1998/001314
Publication Date:
September 30, 1999
Filing Date:
March 25, 1998
Export Citation:
Assignee:
NAGAOKA MORITOSHI (JP)
International Classes:
F24F3/147; F25B39/00; F25D17/04; F28F21/06; F25B39/02; F25D11/00; (IPC1-7): F24F1/00; F25D11/00; F25D23/00; F25D17/06; F28F21/04; F28F21/00; F24F11/02
Foreign References:
| JPH04240373A | 1992-08-27 | |||
| JPH0791704A | 1995-04-04 | |||
| JPH01107609U | 1989-07-20 | |||
| JPS61186070U | 1986-11-20 | |||
| JPS51120457A | 1976-10-21 | |||
| JPH0525187U | 1993-04-02 |
Attorney, Agent or Firm:
Kaiguchi, Muneaki (Towa Shibuya Building 7F, 27-6, Higashi 1-chom, Shibuya-ku Tokyo, JP)
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