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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27200%2F25%3A10257076" target="_blank" >RIV/61989100:27200/25:10257076 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27650/25:10257076

Výsledek na webu

<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85215946166&origin=recordpage" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85215946166&origin=recordpage</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlp.2025.105560" target="_blank" >10.1016/j.jlp.2025.105560</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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&apos;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. © 2025 Elsevier Ltd

Název v anglickém jazyce

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

Popis výsledku anglicky

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&apos;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. © 2025 Elsevier Ltd

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20400 - Chemical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Loss Prevention in the Process Industries

ISSN

0950-4230

e-ISSN

1873-3352

Svazek periodika

94

Číslo periodika v rámci svazku

2025

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

nestránkováno

Kód UT WoS článku

001423436700001

EID výsledku v databázi Scopus

2-s2.0-85215946166