| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for controlling ground temperature with which running cost is controlled to a low level and heat quantity required for one day can be ensured to make a response even to the peak of a thermal load without especially increasing the size of equipment when the soil temperature is controlled by arranging heating medium pipes in the ground of planting land such as pitch. SOLUTION: This system for controlling the ground temperature is obtained by burying the heating medium pipes 2 in the planting land for plants such as lawn, connecting the heating medium pipes 2 to a heating medium tank 5 and circulating the heating medium of cold water or warm water through the interior of the heating medium pipes 2. In the system, the heating medium tank 5 is connected to a first and a second thermal storage tanks 3 and 4 and the cold water or warm water intending to return to the heating medium tank 5 is made to flow into the first thermal storage tank 3 when the cold water of the heating medium tank 5 reaches the set value or above or the warm water reaches the set value or below. The cold water or warm water in the second thermal storage tank 4 is set at a lower or a higher temperature than that of the heating medium tank 5 and fed to the heating medium tank 5. The circulating cold water or warm water is returned to the heating medium tank 5 again after the temperature of the heating medium tank 5 is recovered to the set value. COPYRIGHT: (C)2003,JPO
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