| 摘要 |
PURPOSE:To obtain a solar heat collecting system of particularly a middle temperature range (100-200 deg.C) which is operated and controlled while constantly estimating weather varying hourly and variation in the quantity of solar radiation caused thereby. CONSTITUTION:The control part of the system comprises a barometer 21, a pyrheliometer 22, a sampler 26 for barometric data and solar radiation quantity data, a measured barometric data storing part 24, a measured solar radiation quantity data storing part 25, a time piece 26, a solar radiation quantity calculating part 27, a calculated solar radiation quantity storing part 28, an outside air thermometer 29, a thermometer 30 at the inlet of the heat collector, and a thermometer 31 at the outlet of the heat collector, and discriminating part 32. The discriminating part 32 makes a discrimination from the variation in the atmospheric pressure during past several hours stored in the measured atmospheric pressure storing part 24, the solar radiation quantity during past several hours stored in the measured solar radiation quantity data storing part 25, and the solar radiation quantity in fine weather during several hours after the present time stored in the calculated solar radiation quantity storing part 28, to thereby control opening and closing of opening and closing valves 14 and 17 and operate a steam generator 16 or a heat accumulating tank 19. |
