Development of a heat exchange unit and a potential map for shallow groundwater thermal energy
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- YOSHIDA Hirohito
- Yachiyo Engineering Co., Ltd.
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- TOMIGASHI Akira
- National Institute of Advanced Industrial Science and Technology
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- TAKAHASHI Tsutomu
- Yachiyo Engineering Co., Ltd.
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- TATENO Masayuki
- Geo System Co., Ltd.
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- KOMA Norihiko
- Geo System Co., Ltd.
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- TAKASUGI Shinji
- Geo System Co., Ltd.
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- GOTO Masahiro
- National Agriculture and Food Research Organization
Bibliographic Information
- Other Title
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- 浅層地下水を利用するための熱交換ユニットの開発と導入適地の検討
- センソウ チカスイ オ リヨウ スル タメ ノ ネツコウカン ユニット ノ カイハツ ト ドウニュウ テキチ ノ ケントウ
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Abstract
<p>A geothermal exchange unit has been developed to reduce the capital costs of ground source heat pump systems. Its source of heat energy is shallow groundwater. The geothermal exchange unit comprises flexible containers, sheets of heat exchanger and gravel of high permeability. The sheets of heat exchanger run helically through flexible containers in the unit with gravel. Demonstration experiments in the Kurobe alluvial fan proved that the unit can be installed up to GL-3 m by excavating with heavy equipment. The result of demonstration experiments showed that the average and the standard deviation of cooling outputs are 3.1 and 0.8 kW, respectively. Furthermore, this study selected a candidate area for unit installation based on the depth limit of excavation with heavy equipment and the water table. In result, this study proved that the unit can be installed in the fan toe with water table and high Darcy velocity.</p>
Journal
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- Journal of Groundwater Hydrology
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Journal of Groundwater Hydrology 60 (4), 517-528, 2018-11-30
Japanese Association of Groundwater Hydrology
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Keywords
Details 詳細情報について
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- CRID
- 1390001288125524352
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- NII Article ID
- 130007606015
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- NII Book ID
- AN10088275
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- ISSN
- 21855943
- 09134182
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- NDL BIB ID
- 029382895
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed