PURPOSE: To contrive to store simultaneously and effectively the cool-heat and the hot-heat energy by utilizing high heat insulating properties existing originally in the underground, and contrive to utilize timely the stored heat energy by a method wherein a water shut-off wall is provided at suitable location in the underground, a temperature stratification is formed in the geothermal water storage part for obtaining the temperature difference between a lower layer and an upper layer.
CONSTITUTION: A water shut-off wall 5 is constructed contacting on a base rock 2, located at the downstream side of a city area 1' for an underground water flow 4 and provided to be high as nearly correspond to the thickness of an underground water containing layer 3. The underground water flow 4 is shut-off by the water shut-off wall 5, the underground dam 6 is constructed under the lower part of the city area 1'. By selecting the injected water temperature and injected location for the underground dam 6, relatively lower temperature water in a lower layer 6a and higher temperature water than said water in an upper layer 6b are stored in a temperature stratification.
URAKAWA SHIGEAKI
YOSOMIYA SHINJI
KOGA TOSHIAKI
HAGA YUKIO
MIYAZAWA MASAYOSHI
YUKIMURA TAKASHI
FURUKAWA ELECTRIC CO LTD
ISHIKAWAJIMA HARIMA HEAVY IND
EBARA MFG
SUMITOMO METAL IND
HAZAMA GUMI
HITACHI SHIPBUILDING ENG CO
HITACHI PLANT ENG & CONSTR CO
JPS5298345A | 1977-08-18 | |||
JPS56124859A | 1981-09-30 | |||
JPS59145487A | 1984-08-20 |
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