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成果報告書詳細
管理番号20170000000528
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 樹脂製ライナー低コスト複合容器蓄圧器の開発
公開日2017/8/29
報告書年度2016 - 2016
委託先名八千代工業株式会社 東邦テナックス株式会社
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Title: Hydrogen Utilization Technology Development / Research and Development of the low cost Equipment and System for Fuel Cell Vehicles and Hydrogen Stations / Development of the low cost composite vessel with plastic liner. (FY2013-FY2017)FY2015 Annual Report

In order to cut down the cost for hydrogen gas vessel at hydrogen gas station with regard to this project, the technology development for the large size type 4 composite vessel will be implemented for practical use.
In FY 2016, we created design guidelines. We also designed and prototyped towered the production of a large-scale cylinder. In parallel with designing large-scale cylinders, the remaining tasks for FY 2015 were continued with demonstration by small prototype cylinders and desk study.
1) Feasibility study of the enlargement of Type 4 vessel:
This has been completed in 2014.
2) Evaluation of plastic liner material:
In FY 2017, hydrogen exposure experiments were additionally carried out under the service conditions of the accumulator at the station with the HDPE regarding the pressure and temperature.
Results: In the hydrogen exposure experiment simulating the actual service condition with the HDPE material, blister and the micro crack were not observed.
3) Correlation of CAE:
FEM analysis was optimized by applying the composite property acquired from experiments, using the CAM/CAE software and looking into the boundary condition. Initially, there was a difference between the CAE and test result by 20%. However, we have succeeded to improve the accuracy by changing the CAE model. Currently The correlation has reached more than 96%
4)5) Liner structure / manufacturing process study and the production of the prototype:
The liner structure and manufacturing method established by FY 2015 were reflected in the design of large diameter liner, and the trial production of a subscale liner of 1200 mm in length was completed. The layered design was redesigned to match the large diameter, and the bursting performance was being determined.
Regarding the structure of the polar boss, in order to solve a problem that was not related to the seal performance, it was redesigned extensively for the large diameter cylinder. Currently, there is no problem in sealing ability at room temperature up to burst pressure.
6) Performance test of the real hydrogen use:
Hydrogen gas permeation test using a small prototype container was carried out.
The permeation rate was 2.3 cc / L / h which satisfies the value of 5 cc / L / h (@ 105 MPa) defined in KHKTD 5202.
7) Development of optimized CF:
To reduce CF usage, 10 to 15% higher tensile strength than the standard CF was made. CF usage reduction effect will be confirmed by CFRP vessel evaluation in the next fiscal year.
8) Development of sizing agent:
Three sizing agents were select which have a potential to improve tensile strength translation ratio for CFRP and handing ability at filament winding process.
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