| 摘要 |
PURPOSE:To increase the circulating power of heat transfer medium and consequently improve the heat collecting efficiency of the solar heat utilization device by a method wherein an auxiliary heat collector, the heat collecting efficiency of which is superior than that of an main heat collector, is arranged below the main heat collector in the solar heat utilization device naturally circulating the heat transfer medium. CONSTITUTION:A thermosiphon type circulating circuit, which transfers solar heat collected at a heat collecting part to a heat exchange part 8 by naturally circulating the heat transfer medium utilizing the differences of elevation and of apparent specific gravity of the heat transfer medium, is equipped and the auxiliary heat collector 4, the heat collecting efficiency of which is higher than that of the main heat collector 3, is arranged below the main heat collector 3 in the heat collecting part. Accordingly, because the apparent specific gravity of the heat transfer medium within the main heat collector 3 becomes small by being supplied with the heat transfer medium heated at the auxiliary heat collector 4, the circulating power of the whole circulating circuit and the circulating amount of the heat transfer medium per unit time can be increased and the increase of the heat collecting amount can result the improvement of the heat collecting efficiency. |
