| 摘要 |
PURPOSE:To contrive to enhance the heat exchange efficiency by a method wherein latent heat type heat storage agent and liquid are used in combination. CONSTITUTION:Vessels 2, in which latent heat type heat storage agent are packed, are disposed in arrays on net-like shelves 3 and yet water is filled in a space part in a heat storage tank. The latent heat type heat storage agent consists of hydrate of inorganic salt or organic crystalline substance, the typical one of which is a simple substance of magnesium chloride hexahydrate, calcium chloride hexahydrate or the like or a mixture of more than one substance just mentioned above, is packed in polyethylene vessels 20 and used. The water, which is filled together with said latent heat type heat storage agent in the heat storage tank, is sent through an outflowing port at the lower part of the tank to a heat exchanger 6 by means of a pump 5. The water sent from the heat storage tank 1 is heat-exchanged with the air in a greenhouse at the heat exchanger 6 and then sent back to the heat storage tank. Because the air temperature in the greenhouse is higher than the temperature in the heat storage tank during the daytime, heat energy is accumulated in the heat storage tank, while, because the air temperature in the greenhouse is lower than the temperature in the heat storage tank during the nighttime, the heat energy accumulated in the heat storage tank is released, resulting in heating the greenhouse. |
