浅層地中熱利用の低価格化・高効率化の検討

抄録

A ground source heat utilization system is considered to have higher energy saving performance compared with air heat utilization, and as a renewable energy is also positioned. Despite the features mentioned above, this system requires installation of the ground heat exchanger, so the cost increase therefor is inevitable. Therefore, we propose the system with pile heat exchangers, which is easy to install at low cost, and develop technologies to lower price and improve efficiency of the system for small buildings, especially housing market. Here, the outline of its research and development and its outcome prospects is introduced.