| Project/Area Number |
06302053
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| Research Category |
Grant-in-Aid for Co-operative Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Architectural environment/equipment
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
OCHIFUJI Kiyoshi Hokkaido Univ.Fac.of Eng., Pro., 工学部, 教授 (50001152)
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| Co-Investigator(Kenkyū-buntansha) |
NAGANO Katsunori Hokkaido Univ.Fac.of Eng., Asso.Pro., 工学部, 助教授 (80208032)
OKA Tateo Utsunomiya Univ.Fac.of Eng., Pro., 工学部, 教授 (10185407)
ISHIHARA Osamu Kumamoto Univ.Fac.of Eng., Pro., 工学部, 教授 (10037971)
UMEMIYA Hiromichi Yamagata Univ.Fac.of Eng., Pro., 工学部, 教授 (40007183)
NAKAJIMA Yasutaka Kogakuin Univ., Pro., 教授 (70100344)
船水 尚行 北海道大学, 工学部, 助教授 (10113622)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥13,100,000 (Direct Cost: ¥13,100,000)
Fiscal Year 1995: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1994: ¥9,100,000 (Direct Cost: ¥9,100,000)
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| Keywords | Soil heat storage / Natural heating & cooling / Aquifer / Cool tube / Renewable energy system / Ground vertical pipes / Heat core storage / Solar heat / 地盤蓄熱 / 自然冷房 / 再生エネルギー / 土壌熱源ヒートポンプ |
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| Research Abstract |
The decentrallized heating and cooling systems using ground heat storage have been evaluated. The results are as follows.
(1) Measuring soil temperatures and proposing the way of predicting them in three regions in Japan.
(2) Testing and simulating the effect on air temperature drop when air flow through a cool tube under the ground. It is found that cool tubes are effective to indoor natural cooling.
(3) Experimenting ground source heat pumps for heating using ground vertical pipes. The results are that ground source heat pumps are beneficial to energy saving and the cold thermal energy stored in the ground by heat pumps can be used efficiently to domestic natural cooling in summer.
(4) Calculating the energy conservation for heating and cooling to an ecological dome with the ground heat storage. It is found the utilization of ground heat storages is effective for heating and natural cooling.
(5) Experimenting and simulating the characteristics of the heat core storage systems using solar heat for heating and cooling. It is cleared that the heat core storage has high efficiency of heat storage, heating & cooling systems and renewable energy uses.
(6) Respecting an aquifer heat storage, the flowing aquifer heat storage with ground water charge is one of the effective renewable energy systems from the energy saving and water cleaning points of view.
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