To solve such a problem that in a conventional refrigeration cycle device, a fin used in an evaporator has not been subjected to surface processing for improving the performance in frost formation, and moisture in air is therefore condensed to adhere on a surface of the evaporator as droplets when a refrigerant of 0°C or lower is supplied to the evaporator to cause frost formation on the surface of the evaporator, and then a position of the adhesion is not specified to cause the droplets to coalesce easily and coagulate after growing as large droplets, thereby increasing air trunk pressure loss due to unevenness of a frost layer to deteriorating the performance in frost formation.
A large number of pores are provided on the fin used in the evaporator with a predetermined relative distance and diameter, and thereby droplets and ice droplets are formed on ridge lines of the pores on a cooling surface (evaporator) when the moisture in air causes frost formation on the surface of the evaporator. Accordingly, condensed liquid droplets hardly coalesce, the droplets become small in coagulation, and the thin frost layer is formed to reduce the air truck pressure loss. As a result, the performance in frost formation is improved and energy is saved.
MAEKAWA TAKESHI
MORIMOTO HIROYUKI
HAMADA MAMORU
TASHIRO TAKESUKE
| JP2005127683A | 2005-05-19 | |||
| JPH07120114A | 1995-05-12 | |||
| JP2005282918A | 2005-10-13 | |||
| JP2007098563A | 2007-04-19 | |||
| JPS63123964A | 1988-05-27 | |||
| JP2007205697A | 2007-08-16 | |||
| JP2003097868A | 2003-04-03 |
Tadahiko Inaba
Kanako Murakami
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