Validation of a new standard for safety characteristics of hybrid mixtures: HYBRID II

IF 3.6 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Stefan H. Spitzer , Wojciech Adamus , Enis Askar , Alexander Benke , Sebastian D’Hyon , Zdzislaw Dyduch , Olivier Dufaud , Friederike Flemming , Nicole Gehle , Michael Hohenberger , Vojtech Jankuj , Wang Jian , Arne Krietsch , Richard Kuracina , Miroslav Mynarz , Frederik Norman , David Osborne , Maria Prodan , Nelly Sandsta , Adrian Toman , Shenjung Zhong
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引用次数: 0

Abstract

Safety characteristics are used for the safe operation of processes. In a first step it is checked whether the used component is combustible and if so, in which quantities respectively in which concentration if mixed with air (explosive region) determining the lower and the upper explosion limit. If it can't be guaranteed that the process is run outside the explosive region, constructive measures may be undertaken, as for technical processes it is often assumed that an ignition source is available. Designing protection measures requires explosion characteristics to be determined, namely the maximum explosion pressure (pmax) and the maximum rate of pressure rise (dp/dt)max.Safety characteristics of single-phase components (solid, liquid or gas) can be determined according to standards that were developed 40 years ago and are continuously improved. For hybrid mixtures containing a flammable gas and a combustible dust there has been an approach in the 80s but it has never been improved nor applied ever since (ISO 6184-3). A new approach by four German research facilities and the German Institute for standardization (DIN) with the aim of developing a new standard was launched in 2019. In 2022 the key findings led to a first international round robin test with eleven participating facilities from seven countries (Spitzer et al. (2023)). The dust component was corn starch and methane was chosen as gas component.
In order to strengthen the data foundation before finalizing and publishing the new standard, a second round robin test was initiated with hydrogen as gas component and lycopodium as dust. The dust was provided by Otto-von-Guericke University of Magdeburg (OvGU), tested and sent by the German National Metrology Institute (PTB) to the participating facilities.
The paper will summarize the findings and their influence on the new standard.
混合动力汽车安全特性新标准的验证:hybrid II
安全特性用于过程的安全操作。第一步,检查所使用的成分是否可燃,如果可燃,分别以多少量和多少浓度与空气(爆炸区域)混合,确定爆炸下限和上限。如果不能保证工艺在爆炸区域外运行,则可以采取建设性措施,因为对于技术工艺,通常假设有点火源可用。设计防护措施需要确定爆炸特性,即最大爆炸压力(pmax)和最大升压率(dp/dt)max。单相组件(固体、液体或气体)的安全特性可以根据40年前制定的标准来确定,并不断改进。对于含有可燃气体和可燃粉尘的混合混合物,在80年代已经有了一种方法,但此后从未改进或应用(ISO 6184-3)。2019年,四家德国研究机构和德国标准化研究所(DIN)推出了一项新方法,旨在制定一项新标准。2022年,主要发现导致了来自7个国家的11个参与设施的第一次国际循环测试(Spitzer et al.(2023))。粉尘组分为玉米淀粉,气体组分为甲烷。为了在最终确定和发布新标准之前加强数据基础,以氢气为气体组分,以石蒜为粉尘进行了第二轮循环测试。这些粉尘由马格德堡奥托-冯-格里克大学(OvGU)提供,由德国国家计量研究所(PTB)进行测试并送到参与的设施。本文将总结研究结果及其对新标准的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.20
自引率
14.30%
发文量
226
审稿时长
52 days
期刊介绍: The broad scope of the journal is process safety. Process safety is defined as the prevention and mitigation of process-related injuries and damage arising from process incidents involving fire, explosion and toxic release. Such undesired events occur in the process industries during the use, storage, manufacture, handling, and transportation of highly hazardous chemicals.
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