成果報告書詳細
管理番号20150000000369
タイトル*平成26年度中間年報 地熱発電技術研究開発 低温域の地熱資源有効活用のための小型バイナリー発電システムの開発 無給油型スクロール膨張機を用いた高効率小型バイナリー発電システムの実用化
公開日2015/6/16
報告書年度2014 - 2014
委託先名アネスト岩田株式会社
プロジェクト番号P13009
部署名新エネルギー部
和文要約
英文要約Title: Practical application of high efficiency binary power generation system using oil-free scroll expander.
FY2014 Annual Report (FY2013 - FY2014)

Abstract
The binary power generation system adapted to the hot spring heat source is noted for use of renewable energy and we will develop compact, high efficiency and low cost system. This binary power generation system is using Oilfree Rankine-Cycle technology and equipped with oilfree scroll expander, oilfree pump and small heat exchanger. We will target to achieve 7% of thermal efficiency by this system.

Designing

Market research and design concept of binary power generation system.
In this project, we studied the requirement from the market and made design concept for the development of our compact binary power generation system.
In low temperature hot spring, the eruptive volume per hot spring head is not enough for current systems. Therefore, the system has to be small for spreading the market.
Also, both the expander and the heat exchanger have to be improved because the system has to be small and high efficiency.

Unit testing on scroll expander.
The unit testing was conducted for developing small and high efficiency expander.

Development of tribological system on scroll expander.
The tip seal material of scroll expander needs stable lubricant performance in the low-boiling liquid.
We did screening of materials and made the attrition machine.
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