| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a temperature of a rear-side flow channel is increased when a temperature of a heat medium is increased, since air being the heat medium is heated even at the rear-side flow channel, thus increasing heat radiation from a rear face, deteriorating efficiency, and making a temperature rise of the heat medium difficult. SOLUTION: This solar heat collector is covered by a heat medium supply flow channel 29 for conveying the heat medium to a heat collection flow channel excluding the daylighting face of the heat collection flow channel 27 heating the heat medium, and a flow channel heat insulating layer 28 is disposed between the heat collection flow channel and the heat medium supply flow channel. Thus heat radiation from the heat collection flow channel to the external can be recovered by the heat medium before heating, and the temperature rise of the heat medium supply flow channel can be inhibited by preventing the heat medium of the heat medium supply flow channel from being directly heated by the heat collection flow channel of a high temperature. COPYRIGHT: (C)2007,JPO&INPIT
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