Experimental study of ignited unsteady hydrogen releases from a high pressure reservoir

被引：39

作者：

Grune, J. ^{[1
]}

Sempert, K. ^{[1
]}

Kuznetsov, M. ^{[2
]}

Jordan, T. ^{[2
]}

机构：

[1] Prosci GmbH, D-76275 Ettlingen, Germany

[2] Karlsruhe Inst Technol, IKET, D-76131 Karlsruhe, Germany

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 11期

关键词：

Hydrogen release; Spontaneous ignition; Hazard potential; SELF-IGNITION;

D O I：

10.1016/j.ijhydene.2013.08.076

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to simulate an accidental hydrogen release from the high pressure pipe system of a hydrogen facility a systematic study on the nature of transient hydrogen jets into air and their combustion behavior was performed at the KIT hydrogen test site HYKA. Horizontal unsteady hydrogen jets from a reservoir of 0.37 dm(3) with initial pressures of up to 200 bar have been investigated. The hydrogen jets released via round nozzles 3, 4, and 10 mm were ignited with different ignition times and positions. The experiments provide new experimental data on pressure loads and heat releases resulting from the deflagration of hydrogen air clouds formed by unsteady turbulent hydrogen jets released into a free environment. It is shown that the maximum pressure loads occur for ignition in a narrow position and time window. The possible hazard potential arising from an ignited free transient hydrogen jet is described. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：6176 / 6183

页数：8

共 8 条

[1] Physics of spontaneous ignition of high-pressure hydrogen release and transition to jet fire [J].