| 摘要 |
PURPOSE: A hybrid renewable energy total system equipped with an underground thermal storage device is provided to improve the renewable energy efficiency by heating or cooling a building using solar power which is stored in underground or recycled. CONSTITUTION: A hybrid renewable energy total system equipped with an underground thermal storage device comprises a solar collector(10), a transfer pipe(30), a thermal storage device(50), a return pipe(32), an inlet tube(36) and a connection duct(42). The solar collector heats a thermal medium, flowing in an inner pipe, by condensing solar energy. The transfer pipe transfers the thermal medium of high temperature, provided from the solar collector, to underground. The thermal storage device stores heat in underground using the ascent and descent of the thermal medium, transferred from the transfer pipe. The thermal storage device heats the cold water, flowing in a building through the supply pipe using the stored heat, and the air flowing into the inlet duct. The thermal storage device comprises a space formation member, an underground thermal storage tank, and a heat exchanger. The space formation material is installed on mounting area form in underground in order to form an internal space. The inside and outside of the underground thermal storage tank is filled with sands.
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