成果報告書詳細
管理番号20120000000644
タイトル*平成23年度中間年報 水素製造・輸送・貯蔵システム等技術開発 水素ステーション機器要素技術に関する研究開発 低コスト型70MPa級水素ガス充填対応ステーション機器に係わる研究開発
公開日2012/7/26
報告書年度2011 - 2011
委託先名一般財団法人石油エネルギー技術センター 株式会社日本製鋼所 株式会社キッツ 一般財団法人金属系材料研究開発センター 株式会社山武
プロジェクト番号P08003
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.研究開発の内容及び成果等
70MPa 級水素ステーション構成機器の開発に取組み、実用化のための法規制対応を
NEDO 他事業等と連携して行うとともに、実ステーションへの導入に向けた開発機器の試作を継続している。さらに本年度より水素ステーション充填解析プログラムの開発に着手しており、実際の水素充填データとの照合を経て平成24 年度完成させる予定である。
1. 水素ステーション充填解析プログラムの開発(JPEC/九州産業大学)
1.1 水素充填状態の事前検討
差圧充填型のダイナミックシミュレーションモデルを用いて、実際のステーションにおける充填データの解析を行った。流速を一定あるいは昇圧率を一定とした場合を想定して充填時間を検討した。
1.2 HYDROGENIUS が開発した水素物性データベースとの連携
HYDROGENIUS は100MPa、200℃までの領域をカバーする水素物性データベースを
提供している。このデータベースを,佐賀大学が開発したタンク充填プログラムおよびプレクーラープログラムに組み込み、より信頼性が高い熱物性値の計算ができるように改良した。
1.3 直充填プロセス解析プログラムの検討
圧縮機からプレクーラー入口までの状態変化を計算する配管プログラムを新たに開発し、プレクーラープログラムおよびタンク充填プログラムと連結させた計算を行った。
英文要約Title:“Research and Development for Hydrogen Production, Transportation and Storage System/Research and Development for Elemental Technology of Hydrogen Refueling Station Components/Research and Development for Low-cost 70MPa Hydrogen Refueling Station”(FY2008-FY2012)FY2011 Annual Report

Japan Petroleum Energy Center(JPEC)/Kyushu Sangyo University(KSU)
The Japan Steel Works(JSW)
Kitz Corporation(KITZ)
The Japan Research and development Center for Metals(JRCM)
Yamatake Corporation(YAMATAKE)

1. Modeling for filling process in hydrogen stations(JPEC/KSU)
Station data were analysed using a differential pressure dynamic simulation model, and recharging time was estimated in two assumed cases: constant flow rate or pressure ramp rate.
A hydrogen thermophysical property database which HYDROGENIUS presents (up to 200℃/100MPa) was incorporated in computer programs to simulate processes of filling tanks and precooling. Those originally developed by Saga University used less reliable one, with HYDROGENIUS database, simulation results become more realistic. A new simulation program for process in piping from compressor outlet to precooler inlet was developed and combined with those programs in order to simulate entire station process.
2. 70MPa Class Large Capacity Storage Tanks(JSW)
The quality of the bodies of trial manufacturing ASME SA-723 steel tank was good and uniform, for which the optimized process such as heat treatment was applied. In an auto-frettaged cylinder, crack propagation was not recoginized after 50,000 cycles of fatigue crack growth test in hydrogen gas. Under several stress ratio conditions, auto-frettage was effective for durability enhancement. As hydrogen embtrittlement crack propagated, the hits of Acoustic Emission signal increased and the energy became large.
3. High Pressure Hydrogen Valves(KITZ)
Trial mass production was started based on performance satisfaction to FY2010 and on verification examination by partial trial production with HYDROGENIUS. Low temperature durability test which simulates station was started, and two valves were put on TOHO GAS station for evaluation.
4. High-strength and low-cost materials(JRCM)
Effective methodology for strengthening and cost reduction of austenitic stainless steels are focused to obtain new materials. We shall take solution precipitation, work hardening approaches, and alternative raw elements selection such as manganese. Lab-scaled materials were produced and served to manufacturers, and the obtained data such as SSRT testing was provided to further evaluation.
5. Station control system and control valve(YAMATAKE)
Based on the system hardware and control software specifications for JPEC standard station model, evaluation model including the effective software package controlling multiple station components was completed and tested using process simulation software. Cost reduction method was developed for surface treatment process of control valve stem for more practicality. Some sealing materials were investigated to address reliable operation for a long life-span of stations.



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