| 摘要 |
PURPOSE:To enable to make a heat accumulating apparatus in a compact structure, by disposing particles of coagulative heat accumulating medium charged hermetically in moisture-impermeable packing material with proper spacing in a tank-shaped container of a heat accumulating apparatus used for hothouse culture. CONSTITUTION:In a tank-shaped container 3 of a heat accumulating apparatus, particles 4 of coagulative heat accumulating medium consisting of Na2SO4. 10H2O or the like having a melting point of about 10-30 deg.C, charged hermetically in a moisture-impermeable packing material such as polyethylene or the like, are disposed with proper spacing from each other. In case of collecting superfluous heat in a hothouse in the daytime, a control section 7 drives a fan 5 for performing heat collecting operation when the temperature in the hothouse detected by a detector 6 becomes higher than a prescribed temperature. On the other hand, when the temperature in the hothouse becomes lower than a prescribed temperature at night, heat releasing operation is performed by driving the fan 5. Thus, it is enabled to obtain a compact, energy-saving heat accumulating apparatus used for hothouse gardening, which has a high efficiency of heat exchange. |
