Numerical computation of a large‐scale jet fire of high‐pressure hydrogen in process plant

Abstract

Due to numerous hazardous chemicals to handle, the process plant industry has a higher risk of fire, explosion, and toxic release than other industries. Reviewing the accidents at process plants in the past, it is clear that fire accidents occur with the highest frequency, leading this study to consider accidental fire scenarios at process plants. For the scenario of an incident, a jet fire involving a massive amount of hydrogen gas to be processed or delivered at the process plant has been selected. The analysis of incident outcome resulting from the hydrogen jet fire has been implemented through the computational fluid dynamics simulation methodology Kameleon FireEx. Based on the outcome of this simulation, the consequences of a jet fire with high temperature and heat radiation are analyzed and evaluated. In addition, the results from Phast ver. 7.11 simulation for the same scenario are presented for comparison and further validation. 407

Unignited high-pressure methane jet impacting a cylindrical obstacle: An assessment tool for consequences analysis

“…In the Oil & Gas (O&G) sector, the use of flammable substances stored and transported in gaseous form and under pressure conditions is quite common (Varsegova et al, 2019;Khraisheh et al, 2020;Zhang et al, 2020;Zhu et al, 2020). In the field of industrial safety, high-pressure (HP) releases of a flammable material impacting an obstacle are of paramount importance as possible accidental scenarios (Rian et al, 2016;Jang et al, 2016;Hall et al, 2017;Kotchourko et al, 2014).…”

“…• the scenario occurrence probability: any process, chemical and O&G plant is full of potential obstacles located in the vicinity of a potential source of a high-pressure release (Casal et al, 2012;Xu et al, 2011;Jang et al, 2016;Colombini and Busini, 2019b) • the increased damage area (Hall et al, 2017;Pontiggia et al, 2014;Kotchourko et al 2014) • the ignition possibility of the release (Houf and Schefer, 2007;Darbra et al, 2010;Woodward and Pitblado, 2010) Therefore, the resulting Flash Fire (FF) may involve a larger area with respect to the case of open field conditions (i.e., the free jet scenario). A greater chance of involving neighbouring structures, triggering the well-known domino effect (which leads to the catastrophic consequences as documented in literature (Casal, 2008;Benard et al, 2009;Darbra et al, 2010)), would be, thus, a concrete risk to be considered.…”

Experimental investigation of high‐pressure hydrogen gas jet impingement characteristics of single‐hole cylindrical injector

“…Hydrogen power systems produce near-zero harmful emissions, and their use has potentially high efficiency. 1 Internal combustion engines play a dominant role in transportation, and the use of hydrogen as a fuel for internal combustion engines has attracted increasing attention. 2,3 Hydrogen as engine fuel offers advantages, such as improved flame propagation speed, low lean burn limit, and high energy density.…”

“…The utilization of hydrogen as a fuel has been proven to be a relatively simple approach to reducing carbon‐based emissions. Hydrogen power systems produce near‐zero harmful emissions, and their use has potentially high efficiency 1 . Internal combustion engines play a dominant role in transportation, and the use of hydrogen as a fuel for internal combustion engines has attracted increasing attention 2,3 .…”

A comparative study of radiation models on propane jet fires based on experimental and computational studies

“… Propane Vertical Evaluated the LES turbulence suggested better predictions than the RANS turbulence models. Jang and Jung (2016) CFD with KFX code. Hydrogen Vertical Investigated the jet fire resulted from hydrogen leakage from a pipe in the process plant.…”