成果報告書詳細
管理番号20140000000220
タイトル*平成25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2015/4/29
報告書年度2013 - 2013
委託先名丸八株式会社 株式会社巴商会
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English Abstract

(Filename) 1 「Heisei 25 -Heisei25  Annual Report」13400734-0-1
「Heisei 25 」「English Abstract of Annual Report」"

1. R&D details and outcomes

(1) Design and analysis of composite pressure vessels

In order to formulate manufacturing guidelines by the end of FY2015 for
100L-150L class large Type-4 high-pressure composite hydrogen pressure
vessel accumulators in compliance with the provisions of the Guidelines for
hydrogen fuelling station composite pressure vessel accumulators (as of June
2013), requiring design pressure of 106MPa and at least 100,000 usage
cycles, Maruhachi Co., with cooperation from Tokyo Metropolitan University,
Osaka University, and Prof. Masanori Kawahara, worked on composite vessel
design analysis. As a design decision, we agreed to fix the diameter of the
plastic liner, and to alter the capacity of the vessel by varying the
length, and then to verify the optimization of vessel design by changing the
size of the plastic liner's port taper section and port bore. The design
analysis methodology was for Maruhachi Co. and Prof. Kawahara to produce a
draft for the basic design capable of withstanding 2.25 times design
pressure and 11,150 pressure cycles, in accordance with the rules for
vessels for use in vehicles, and then for the two universities to determine
its conformance with regulations that are an order of magnitude more
stringent, with pressure cycling of at least 100,000 cycles (and in some
cases, 400,000 cycles). Basically, TMU/Associate Prof.Kobayashi determined
the fiber orientation angle, the thickness of the carbon fiber reinforced
plastic (CFRP), and the shape of the dome region such that wrapping an
external diameter 400mm, wall thickness 19.1mm polythene liner with
PAN-based carbon fiber T700SC/epoxy would ensure a burst pressure of 110MPa
with a safety factor of 4. The cylinder section CFRP thickness and fiber
orientation angle were determined according to netting theory, and the dome
region shape was determined so as to produce an isotensoid structure.
Working from this data, finite element analysis was performed at Osaka
University/Associate Prof.Kurashiki, optimizing the CFRP thickness and fiber
orientation angle, and at the same time as determining the shape of the port
section, the final decision was made on a vessel shape that could actually
be manufactured. In FY2013, the work of design and analysis of small
composite vessels was performed at Osaka University/, with the objective of
developing practical application technology in preparation for developing
large Type-4 filament-wound composite pressure vessel accumulators with
carbon fiber wound onto a plastic liner in order to reduce hydrogen fuelling
station construction costs.

(2) Other developments

In March, Maruhachi exhibited Type-4 high pressure vessels at the JEC Show
in Paris and received the JEC Innovation Award in the Pressure Vessels
category. This award demonstrates global recognition for Maruhachi Co.'s
Type-4 composite vessel technology.
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