成果報告書詳細
管理番号20150000000531
タイトル*平成26年度中間年報 再生可能エネルギー熱利用技術開発 地中熱利用トータルシステムの高効率化技術開発及び規格化/地中熱・流水熱利用型クローズドシステムの技術開発
公開日2015/7/17
報告書年度2014 - 2014
委託先名ジオシステム株式会社 独立行政法人農業・食品産業技術総合研究機構農村工学研究所 国立大学法人東北大学 八千代エンジニヤリング株式会社
プロジェクト番号P14017
部署名新エネルギー部
和文要約
英文要約Title FY2014 Annual report 'Renewable energy-heat utilization technology and development project / Development and standardization of efficiency increasing technology of total system for geo-heat utilization / Development of closed systems using ground heat and flowing water heat' (FY2014-FY2016)

In order to promote utilizations of the heat from the shallow ground-water and the agriculture water and so on as the unused heat, we shall carry out
1) development of a heat exchanger for Shallow Ground-Water-Loop (SGWL) and Surface Flowing Water-Loop (SFWL),
2) development of the optimized operation for heat pump systems, and
3) development of the a mapping technology of areas suitable for introduction of the heat from the SGWL and the SFWL, in three years of 2014-2016.
Contents and the result that we carried out in 2014 are as follows.

1) Development of heat exchanger for the SGWL and the SFWL
As the heat exchanger suitable for the SGWL and the SFWL, we chose a sheet-formed polyethylene heat exchanger of 5.6m in length, and 0.9m in width. The heat exchangers formed into spiral shape for the SGWL was installed in an experiment waterway in imitation of Shallow Ground-water-Flow. The heat exchanger formed into flat board for agriculture water was installed in another experiment waterway in imitation of an agriculture irrigation canal. We started the measurement of the heat exchange performance for the SFWL and the SGWL under the several situations. We also tried to build numerical model of the heat exchangers to evaluate the heat exchange performance for the SFWL and the SGWL.

2) Development of the optimized operation for heat pump systems
On the development of load control method for the heat pump systems, we reviewed the placement of the indoor units of a really used office and carried out adequate load of the heat pump systems. For verification of systems without non-freezing fluid, we examined temperature detection systems to prevent freeze with a heat pump manufacturer.

3) Development of the mapping technology of areas suitable for introduction of a heat from the SGWL and the SFWL
We choose a model area and evaluate quantity of natural resources of the SGWL and the SFGL and make the potential map which contributes to select an area suitable for introduction of the heat exchangers for the SFWL and the SGWL.
As the model area, Kurobe River alluvial fan for the SGWL and Tedori River seven water (Ishikawa) for the SFWL were chosen and performed a field work and grasped spring environment, the underflow situation, and the maintenance situation of agriculture water facilities.
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