Development of Advanced Explosion Safety Technology for Hydrogen System

2021 Fiscal Year Final Research Report

• Project/Area Number: 18H03822
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
• Research Institution: The University of Tokyo
• Principal Investigator: Dobashi Ritsu 東京大学, 大学院工学系研究科(工学部), 教授 (30237177)
• Co-Investigator(Kenkyū-buntansha): 桑名 一徳 東京理科大学, 理工学研究科国際火災科学専攻, 教授 (30447429) ; 茂木 俊夫 東京大学, 大学院工学系研究科(工学部), 准教授 (50392668) ; KIM WOOKYUNG 広島大学, 先進理工系科学研究科(工), 助教 (40781852)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Keywords: 水素安全 / ガス爆発 / 爆発影響度評価 / 不安定性

Outline of Final Research Achievements

Large-scale experiments, pressurization experiments, and consequence assessment models were conducted to develop advanced explosion safety technology for hydrogen systems. Detailed data on gas explosion behavior under various conditions were obtained through large-scale and pressurized experiments, and the results contributed to combustion behavior analysis and a safety database. These data were used to develop a consequence assessment model that can be used as a hazard assessment tool. Furthermore, the large scale experimental videos can be used as a safety education tool.

Free Research Field

燃焼学, 安全工学

Academic Significance and Societal Importance of the Research Achievements

持続可能な社会実現に向け，水素は重要なエネルギーキャリアとして様々なところで利用されていくと予想される．その一方で，都市ガスやプロパンガス等の一般的な可燃性ガスに比べて事故が起こった場合の影響度は大きく，危険性も正しく認識しておく必要がある．本研究の成果を通じて，ガス爆発における火炎伝ぱの不安定性の解明だけでなく，水素安全の啓蒙に資するデータを取得することができた．