H-17 The Development of Geothermal Air-conditioning System Using Ground Heat Exchanger utilizing Building's Cast-in-place Concrete Pile Foundation : (Part 11) Feasibility Study on an Annual Experiment and the Real Construction Cost

Abstract

This paper presents a feasibility study on an annual experiment and the real construction cost. The feasibility study model was the office building of medium scale. The cost pay back time was 17.7 years depending on cost increase of ground heat exchanger pile. Furthermore, the authors tried to find some factors that have the cost pay back time within 10 years. Consequently, it expects that the cost pay back time reduces by executing some factors.