Apparent Thermal Conductivities in Aomori Prefecture

  • IOKA Seiichiro
    North Japan Research Institute for Sustainable Energy, Hirosaki University
  • MURAOKA Hirofumi
    North Japan Research Institute for Sustainable Energy, Hirosaki University
  • NANJO Hirotada
    North Japan Research Institute for Sustainable Energy, Hirosaki University
  • FUJII Hikari
    Faculty of Engineering, Kyushu University (Present: Faculty of Engineering and Resource Science, Akita University)
  • SAKAMOTO Hayato
    Taisen Development Co., Ltd.
  • OSANAI Toshio
    Taisen Development Co., Ltd.

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Other Title
  • 青森県における地盤の見かけ熱伝導率
  • アオモリケン ニ オケル ジバン ノ ミカケ ネツ デンドウリツ

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Abstract

Thermal response tests with U-tube ground heat exchanger of 50 m long were conducted to evaluate apparent thermal conductivity in 23 locations of Aomori Prefecture. The apparent thermal conductivities were ranged from 1.12 to 2.94 W/(mK). The highest apparent thermal conductivity was evaluated in the location consisted of gravel layer. The lowest value was in the location consisted of alternation of mudstone and sandstone. In addition, the apparent thermal conductivities were ranged from 1.50 to 2.08 W/(mK) in the alluvial plain deposits of Aseishi river.

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