成果報告書詳細
管理番号20160000000543
タイトル*平成27年度中間年報 再生可能エネルギー熱利用技術開発 その他再生可能エネルギー熱利用トータルシステムの高効率化・規格化 温泉熱地域利用のためのハイブリッド熱源水ネットワーク構築技術の研究開発  
公開日2016/9/7
報告書年度2015 - 2015
委託先名株式会社総合設備コンサルタント 公立大学法人大阪市立大学
プロジェクト番号P14017
部署名新エネルギー部
和文要約
英文要約Title: Technological development in Renewable Energy: Geothermal Energy/The study for its higher efficiency and standardization of the process/The research and development of construction technology for hybrid heat source water supply network to promote the utilization of geothermal energy. (FY2014-FY2016)FY2015 Annual Report

(1)Conduct of the feasibility study

With four different model cases in hotels having a heat boiler system, the feasibility study for hybrid heat source water supply system was conducted. The results of this study showed the hybrid system would be superior to the central heat system. In addition, its running cost and primary energy consumption are lower than the heat boiler system.
Furthermore, a study about the use of hot spring water systems as an energy source, such as heat boiler system, central heat system and hybrid system, were conducted. In this study, different features, advantages and disadvantages, cost and the suitable place for those systems are investigated to evaluate their possibility. Concurrently, the study of the business viability of those systems are being conducted.

(2)Technological development of the flowing liquid film exchanger for its lower cost and higher efficiency

In order to take in account for various hot spring water qualities, an experimental study has been done. Different types of materials have been dipped into several types of hot springs. According to that, there are two hot springs which can generate an accumulation of deposits called “Yunohana” and corrode metals easily. Thereby, those two hot springs were chosen for the small heat exchanger experiment. This helped to comprehend the effect of hot spring mineral deposits on the performance of the heat exchanger. Following this, the real size of heat exchanger system has been built and will be tested.

(3)Development of heat retaining pipe and its pipe coupling

To identify the performance requirements of the pipes for the hybrid network, the size, price, pressure resistance, and heat retaining property of different variety of pipes are compared.
In addition, we planned an experiment and simulation to grasp the efficiency of the heat loss from the ground water.
Regarding the pipe coupling, method of connections have surveyed to reduce the cost.

(4)Development of the heat exchanger for the preheating discharge water in public bath

Based on the results in previous fiscal year, we designed and built another prototype to investigate the performance of it.
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