Dynamics of explosion venting in a compartment with methane-air mixtures

Kodakoglu, Furkan; Farahani, Hamed Farmahini; Rangwala, Ali S.; Akkerman, V’yacheslav

doi:10.1016/j.jlp.2020.104230

Cited by 18 publications

(17 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, we started the present work with employing the Figure 2. Experiments for vented methane-air explosions with rear ignition (RI) [22]: A sketch of the experimental setup (a) and consecutive photos for the evolution of stoichiometric (φ = 1) methane-air, elliptic-like flames inside a cylinder with vent areas: 67.9 cm 2 (top), 88.6 cm 2 (middle), and 132.7 cm 2 (bottom) (b).…”

Section: Resultsmentioning

confidence: 99%

“…We next briefly describe the experimental setup and conditions of Kodakoglu et al [22], which are simulated in this present study using the EVA solver. Specifically, the EVA results for fuel-lean (φ = 0.8), stoichiometric (φ = 1), and fuel-rich (φ = 1.2) methane-air mixtures were compared with the experiments for rear ignition occurring in a cylindrical chamber having the diameter of 19 cm and the length of 30 cm such that the internal volume was 8,505.6 cm 3 .…”

Section: Description Of the Experimental Set-upmentioning

confidence: 99%

“…Three various circular venting openings have been considered, namely: a small vent (SV) of the venting area 67.9 cm 2 , a medium vent (MV) of area 88.6 cm 2 , and a large vent (LV) of area 132.7 cm 2 . The experiments [22] are illustrated in Figure 2. Specifically, Figure 2a shows a schematic of the experimental setup.…”

Section: Description Of the Experimental Set-upmentioning

confidence: 99%

“…It should be noted that the EVA has undergone various modifications for better prediction accuracy, including the formulations for the flame shape and the burning velocity as well as the addition of the new enclosure geometry. While Sezer et al [21] validated and established the EVA capability of predicting hydrocarbon explosion experiments in a cuboid enclosure, later, the experimental work of Kodakoglu et al [22] analyzed methane-air explosions in a cylindrical geometry. Therefore, the present work extends and employs the EVA to model the conditions and geometry of Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the present work extends and employs the EVA to model the conditions and geometry of Ref. [22], which resembles a typical configuration of tubes and pipelines used for the natural gas supply. Specifically, the pressure evolution and peak pressure results from the EVA are tabulated and validated by the experimental data [22] in order to ascertain the accuracy of the EVA prediction in this geometry.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dynamics of Explosions in Cylindrical Vented Enclosures: Validation of a Computational Model by Experiments

Ogunfuye

Sezer

Kodakoglu

et al. 2021

Fire

Self Cite

View full text Add to dashboard Cite

Recent explosions with devastating consequences have re-emphasized the relevance of fire safety and explosion research. From earlier works, the severity of the explosion has been said to depend on various factors such as the ignition location, type of a combustible mixture, enclosure configuration, and equivalence ratio. Explosion venting has been proposed as a safety measure in curbing explosion impact, and the design of safety vent requires a deep understanding of the explosion phenomenon. To address this, the Explosion Venting Analyzer (EVA)—a mathematical model predicting the maximum overpressure and characterizing the explosion in an enclosure—has been recently developed and coded (Process Saf. Environ. Prot. 99 (2016) 167). The present work is devoted to methane explosions because the natural gas—a common fossil fuel used for various domestic, commercial, and industrial purposes—has methane as its major constituent. Specifically, the dynamics of methane-air explosion in vented cylindrical enclosures is scrutinized, computationally and experimentally, such that the accuracy of the EVA predictions is validated by the experiments, with the Cantera package integrated into the EVA to identify the flame speeds. The EVA results for the rear-ignited vented methane-air explosion show good agreement with the experimental results.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Description Of the Experimental Set-upmentioning

confidence: 99%

Section: Description Of the Experimental Set-upmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations