| 摘要 |
<p>A heat collector is disclosed. The heat collector includes a heat collecting part to receive external heat while working fluid as a heat transfer medium flows therethrough, a heat insulating part provided to surround the heat collecting part so as to decrease heat loss of the heat collecting part, and a reflecting membrane formed in the heat insulating part to reflect and concentrate incident light onto the heat collecting part. Accordingly, since the reflecting membrane is positioned around the heat collecting part, incident light can be concentrated on the heat collecting part. Since the vacuum part is provided between the heat collecting part and the heat insulating part, heat radiation from the heat collecting part due to convection and conduction is decreased. Efficiency of the overall system is enhanced.</p> |
