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作者:

Zhang, Xiaolu (Zhang, Xiaolu.) | Wang, Qiubo (Wang, Qiubo.) | Hou, Xulei (Hou, Xulei.) | Li, Yuejuan (Li, Yuejuan.) | Miao, Yang (Miao, Yang.) | Li, Kun (Li, Kun.) | Zhang, Li (Zhang, Li.)

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Scopus SCIE

摘要:

Studies on hydrogen leakage have mainly focused on the influences of location and geometrical configuration on the distribution of the hydrogen in various spaces. The present study developed a simplified model for the leakage diffusion of hydrogen in an enclosed cuboid space with two vents, at the top and at the bottom, respectively. The effect of different leakage positions on the diffusion of the hydrogen was analyzed. The results showed that when hydrogen diffused vertically from the bottom to the top of the space, the farther the leakage position was from the vent on the side wall, the more hydrogen accumulated. When the hydrogen leaked in the vertical direction from the floor, the distance between the leakage position and the bottom vent had little effect on the horizontal diffusion speed of the hydrogen at the top of the space. The diffusion speed for the leakage in the horizontal direction was faster than that in the vertical direction. When the hydrogen leaked in the horizontal direction from the side wall, the height of the leakage had little effect on the horizontal diffusion speed of the hydrogen at the top of the space. Stratification occurred for models set up in the present study whenever the envelope of 1% mole fraction, or 4% mole fraction, of hydrogen extended to the whole ceiling.

关键词:

leakage position natural ventilation hydrogen leakage diffusion

作者机构:

  • [ 1 ] [Zhang, Xiaolu]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Qiubo]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 3 ] [Hou, Xulei]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Yuejuan]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 5 ] [Miao, Yang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Xiaolu]Beijing Univ Technol, Engn Res Ctr Adv Mfg Technol Automot Components, Minist Educ, Beijing 100124, Peoples R China
  • [ 7 ] [Li, Yuejuan]Beijing Univ Technol, Engn Res Ctr Adv Mfg Technol Automot Components, Minist Educ, Beijing 100124, Peoples R China
  • [ 8 ] [Li, Kun]China Nucl Power Technol Res Inst Co Ltd, Shenzhen 518000, Peoples R China
  • [ 9 ] [Zhang, Li]China Nucl Power Technol Res Inst Co Ltd, Shenzhen 518000, Peoples R China

通讯作者信息:

  • [Li, Yuejuan]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China;;[Li, Yuejuan]Beijing Univ Technol, Engn Res Ctr Adv Mfg Technol Automot Components, Minist Educ, Beijing 100124, Peoples R China

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来源 :

APPLIED SCIENCES-BASEL

年份: 2021

期: 2

卷: 11

2 . 7 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:87

JCR分区:2

被引次数:

WoS核心集被引频次: 15

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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