成果報告書詳細
管理番号20120000000281
タイトル*平成23年度中間年報 水素先端科学基礎研究事業 水素先端科学基礎研究(1)
公開日2013/3/26
報告書年度2011 - 2011
委託先名独立行政法人産業技術総合研究所
プロジェクト番号P06026
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:[1] 産業界との連携
(1)「高圧水素物性の基礎研究」
・高圧高温(100MPa,773K(500℃))の条件下における世界初の実測データを蓄積.
・水素熱物性データベースを3種類の形態で提供可能な,WEB版,All-in-1CD/DVD版,
Add-in関数版(MS-Excel用,Mathcad用)を開発.
・初の応用として,水素ステーション運転時の水素充填解析用シミュレーションソフトウェアへの組み込みを開始((財)石油エネルギー技術センター 以下,JPEC).
英文要約Title:Fundamental Research Project on Advanced Hydrogen Science (FY2006-2012) FY2011 Annual Report (1)
Hydrogen energy is expected to be a next generation clean energy that produces very little environmental pollution and will greatly reduce CO2 emissions. However, there are still many issues that must be overcome before commercializing hydrogen energy technologies such as fuel cells. Therefore, we are working to scientifically clarify the phenomena related to hydrogen and other materials, and establish technology that enables safe and economical use of hydrogen energy. In FY2011, 4 teams worked as follows:
(1)Hydrogen Thermophysical Properties Team
Development of experimental apparatus and the measurements of PVT characteristics, viscosity and thermal conductivity have been performed in the range up to 100 MPa and 773 K (500C). Three types of hydrogen thermophysical property database, WEB page, All-in-1-CD/DVD and add-in libraries for Excel and Mathcad were developed. For these databases, usability of the database has been much improved. The sound velocity of hydrogen was measured within 0.06 % uncertainty in the range of 0.05 MPa to 1.0 MPa and that of 60 ?C to 90 ?C. Dew and frost point measurement for H2 + H2O system were carried out under conditions of total pressure 5-10 MPa and water concentration 5-50 ppm by using cooled mirror technique and original visible image analysis.
(2)Hydrogen Fatigue and Fracture Team
Four types of hydrogen structural materials database (hydrogen transportation, SSRT, fatigue life and fatigue crack growth) of SUS316 with Ni more than 12 mass% in 115 MPa hydrogen gas were developed for reducing regulations of hydrogen infrastructures in cooperation with JPEC and KHK. The investigation and analysis of stainless pipes, storage cylinder, valve and flow meter in 35 MPa Arikae station have been done. The results were presented to the infrastructure industry.
(3)Hydrogen Polymer Team
In order to clarify the influence of composite design for hydrogen gas seal, we made 48 types of model composites and evaluated their permeability, solubility and diffusivity of hydrogen. We evaluated those of polytetrafluoroethylene, polyethylene and epoxy resins. We analyzed the character and content of dissolved hydrogen in rubber by solid state NMR. We found two types of hydrogen having different mobility. In terms of these results, we worked on development of novel sealing materials. We successfully performed 5,500 times pressure cycle test of O-ring by high-pressure hydrogen gas. We developed the test vessels for cylindrical seal design and tried to evaluate sealing properties of O-ring.
(4)Hydrogen Tribology Team
The project this year concentrated on collecting hydrogen tribology data for candidate materials including steels, alloys, polymers, and coatings under a variety of conditions, including gas pressure, temperature and trace water and oxygen in hydrogen, and on exploring chemical processes occurring at tribo-interface. Greater progresses were in understanding behaviors of polymer composites and the effects of counterface metals, relationship between surface film formation and hydrogen permeation in steels, and the effects of lubricants on rolling contact fatigue. Parts of the works were done in collaboration with manufacturing companies.
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