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1. (WO2018105629) LARGE-TUBE HORIZONTALLY-INCLINED CONVECTION-TYPE GROUND HEAT EXCHANGER, LARGE-TUBE HORIZONTALLY-INCLINED CONVECTION-TYPE GROUND HEAT EXCHANGING DEVICE, AND INSTALLATION METHOD THEREFOR

Pub. No.:    WO/2018/105629    International Application No.:    PCT/JP2017/043711
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Wed Dec 06 00:59:59 CET 2017
IPC: F28D 21/00
F24T 10/00
Applicants: YAMANOBE, Hisao
山野辺 久生
Inventors: YAMANOBE, Hisao
山野辺 久生
Title: LARGE-TUBE HORIZONTALLY-INCLINED CONVECTION-TYPE GROUND HEAT EXCHANGER, LARGE-TUBE HORIZONTALLY-INCLINED CONVECTION-TYPE GROUND HEAT EXCHANGING DEVICE, AND INSTALLATION METHOD THEREFOR
Abstract:
Provided is a ground heat exchanger that improves heat-transfer efficiency from the earth, is smaller in size, occupies less surface area, has reduced installation costs and operation costs, and can be installed in a narrow piece of land. A large-tube horizontally-inclined convection-type ground heat exchanger according to the present invention is characterized in that: said ground heat exchanger is a straight metal tube embedded in the ground in an inclined and horizontal manner; both ends of said straight tube are respectively closed off by two end surfaces perpendicular to the long axis thereof; an upper portion of an upper end surface provided to the higher of the two end surfaces and a lower portion of a lower end surface provided to the lower of the two end surfaces are respectively provided with an upper-portion heat medium port and a lower-portion heat medium port; the cross-sectional area of the interior of said straight tube is 314 cm2 or more; the ratio of the distance and height difference between the upper end surface and the lower end surface is in the range of 3:1 to 100:1; and a concrete layer or mortar layer is provided around said straight tube.