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成果報告書詳細
管理番号20170000000112
タイトル*平成28年度中間年報 水素利用技術研究開発事業 燃料電池自動車及び水素ステーション用低コスト機器・システム等に関する研究開発 水素ステーションの高圧水素用ホースとシールシステムに関する研究開発
公開日2017/5/9
報告書年度2016 - 2016
委託先名日本合成化学工業株式会社
プロジェクト番号P13002
部署名新エネルギー部
和文要約
英文要約Research and Development of Technology for Hydrogen Utilization/
Research and Development of Low-cost Equipment and System for Fuel Cell
Vehicles and Hydrogen Stations/Research and Development of High-pressure Hydrogen Hose and Sealing System for Hydrogen Stations/ (FY2013-FY2017)

FY2016 Annual Report

We have developed and reported the material and the multi-layer tube system for the flexible high-pressure dispenser hose applicable to 82MPa hydrogen supply system since FY2013. In this financial year, we have studied the material for 87.5MPa hydrogen which is the highest pressure of the accumulator of the dispenser for fuel cell vehicle. The main subject by the increase in the hydrogen pressure is considered as the following three points. 1) Increase in the amount of hydrogen dissolved in the material; it will affect blister 2) Fall in the mechanical characteristics of the material arising from the increase in the amount of hydrogen in it3) Increase in the strain of the radial direction of the tube. We have proposed and studied not only the improvement of the materials but also the multi-layer tube system to reduce the influence of hydrogen on the main material (outer layer) of the tube.Since it is considered to increase in the influence of hydrogen on the materials by increasing in the hydrogen pressure, we have also investigated the effect and the requirement of the barrier material (inner layer).In this financial year, we estimated the mechanical characteristics of various materials for the outer layer and the amount of hydrogen dissolved in the material for the inner one under the high pressure.The most important mechanical characteristics are shown below and we evaluated them.1) tensile properties at -40, 23, and 65 centigrade degree 2) coefficient of linear thermal expansion. We plan to use the results and estimate the relationship between the properties of the hose and those of the material. We also evaluated the amount of hydrogen dissolved in the material and the diffusion coefficient of it under the high pressure (90MPa). It is considered to be able to estimate the effect of the barrier material (inner layer) of the tube, and we plan to do it in FY2017.
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