抄録
A geothermal heat pump system is a comparatively simple system but the setup cost is very high because of laying cost for a borehole inserting heat exchange pipes. Therefore, the reducing of the setup cost is a main issue when we consider the broaden application of this system. In this paper, the design procedures for ground heat exchanger are introduced, when the complex application of different type of ground heat exchangers in order to exclude this digging cost is discussed.