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INJECTION AND EXTRACTION OF GROUND HEAT BY BORE-HOLE HEAT EXCHANGE SYSTEM AND KONG PERIOD THERMAL INTERACTION BETWEEN GROUND AND BORE-HOLE

掘削杭熱交換システム (BHES) の長期的な季節利用および経済性の観点から, 設計に不可欠な因子 (杭長, 循環流量, 循環方式) が採・放熱効率に及ぼす影響およびBHESの季節蓄熱効果を数値実験により明らかにした. その結果, (1) 採・放熱量E(MJ) は杭長L(m) の2次関数としてE=a2L2+b2L(0≦L≦200) (採熱時: a2=-0.44, b2=316, 放熱時: a2=-0.43, b2=355) で表され, 両者は正の相関を持つが, 単位長さ当りの採・放熱量は杭長の増加とともに減少する, (2) 採・放熱量Eと循環流量Q(l/min) の関係はE=mQn (採熱時:...

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Published in:Doboku Gakkai Ronbunshu
Main Author: Teruyuki FUKUHARA
Other Authors: Satoshi TANIMOTO, Hiroshi Watanabe, Masahiro Ohki
Format: Article
Language:English
Published: 2001
Subjects:
Geothermal Energy Systems and Applications
Integrated Energy Systems Optimization
Building Energy and Comfort Optimization
borehole heat exchangers
ground heat extraction
seasonal thermal energy storage
borehole length
circulation rate
heat transfer efficiency
Online Access:https://doi.org/10.2208/jscej.2001.685_103
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https://doi.org/10.2208/jscej.2001.685_103

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