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作者:

Miao, Yang (Miao, Yang.) | Jia, Chenghao (Jia, Chenghao.) | Hua, Yang (Hua, Yang.) | Sun, Lejia (Sun, Lejia.) | Xu, Jingxiang (Xu, Jingxiang.) | Wu, Di (Wu, Di.) | Huang, Gang (Huang, Gang.) | Liu, Haibin (Liu, Haibin.) (学者:刘海滨)

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摘要:

Hydrogen leakage diagnosis has attracted more and more attention, especially in the high -pressure hydrogen system of fuel cell vehicles, where the chance of deflagration is quite high. Traditional methods for detecting gas leaks rely on stationary sensor measurements and manual inspections. Manual inspections are time and resourceconsuming, and it is challenging to achieve real -time, comprehensive inspections in large spaces. In this study, a new Adaptive Stream Stripe-Background Oriented Schlieren (ASS-BOS) method for hydrogen jet visualization is proposed. Three different background patterns, namely random scatter background, checkerboard background, and stripe background, are designed for multiple experiments. The results show that when observing hydrogen jets in the far -field region (low-density gradient), ASS-BOS has higher accuracy and resolution, detects larger background displacements, and shows more turbulence details. In addition, the concentration distribution of the hydrogen jet is reconstructed using ASS-BOS. We compare the concentration of the hydrogen jet obtained from the inversion of the ASS-BOS method with the experimental results measured by the sensor. We find that the average error is 3.45%, indicating that ASS-BOS can accurately reconstruct the concentration distribution of the hydrogen jet.

关键词:

Safety monitoring Synthetic schlieren Background oriented schlieren Hydrogen leak

作者机构:

  • [ 1 ] [Miao, Yang]Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Jia, Chenghao]Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Haibin]Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Miao, Yang]Beijing Univ Technol Beijing, Beijing Key Lab Adv Mfg Technol, Beijing 100124, Peoples R China
  • [ 5 ] [Hua, Yang]Xinxing Cathay Int Intelligent Equipment Technol R, Beijing, Peoples R China
  • [ 6 ] [Sun, Lejia]Xidian Univ, Sch Microelect, Key Lab Wide Band Gap Semicond Mat & Devices, Xian 710071, Peoples R China
  • [ 7 ] [Xu, Jingxiang]Shanghai Ocean Univ, Coll Engn Sci & Technol, Shanghai, Peoples R China
  • [ 8 ] [Wu, Di]Shanghai Ocean Univ, Coll Engn Sci & Technol, Shanghai, Peoples R China
  • [ 9 ] [Huang, Gang]China Astronaut Res & Training Ctr, Beijing 100094, Peoples R China

通讯作者信息:

  • [Liu, Haibin]Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China;;[Huang, Gang]China Astronaut Res & Training Ctr, Beijing 100094, Peoples R China;;

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来源 :

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

ISSN: 0360-3199

年份: 2024

卷: 77

页码: 281-290

7 . 2 0 0

JCR@2022

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