Results 181 to 190 of about 4,125 (229)

Methane-induced explosions in vented enclosures

Journal of Loss Prevention in the Process Industries, 2017
Abstract Explosions in enclosures leading to devastating accidents occur in various industrial, commercial, and residential occupancies. To relieve the effect of such explosions, vents of various sizes and geometry are designed. In this study, a computational model for gas explosions venting, developed and validated on hydrogen explosion by Ugarte et 
Hayri Sezer, Francis Kronz, V'yacheslav Akkerman, Ali S. Rangwala   +3 more
openaire   +1 more source

Methane Gas Explosion During Colonoscopy

Gastroenterology Nursing, 1997
This article discusses a complication of colonoscopy that healthcare providers think can not happen: methane gas explosion. Despite proper bowel cleansing, such an incident did occur. This article shows how quick recognition and action can save a patient's life. Colonic preparations are also discussed.
openaire   +2 more sources

Explosive desorption from solid methane and methane-containing argon matrices

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2020
Abstract The total yield of emitted particles from solid CH4 and Ar matrices doped with CH4 was studied under irradiation with electrons. The explosive desorption was detected for these systems. Strong bursts of particles were delayed with respect to the start of irradiation indicating the need for accumulation of radiolysis products.
E. Savchenko, I. Khyzhniy, S. Uyutnov, M. Bludov, V. Bondybey   +4 more
openaire   +1 more source

Methane hydrate in crystalline bedrock and explosive methane venting tectonics

Earth-Science Reviews, 2017
Abstract Methane hydrate (clathrate, ice) does not only form in shelf environments, but may also accumulate in voids and fractures in continental crystalline rocks. This has turned out to be the case in formerly glaciated areas where the waxing and waning of thick ice caps following the Quaternary alterations between Ice Ages and Interglacial implied
openaire   +1 more source

Explosive photodissociation of methane induced by ultrafast intense laser

The Journal of Chemical Physics, 2006
A new type of molecular fragmentation induced by femtosecond intense laser at the intensity of 2×1014W∕cm2 is reported. For the parent molecule of methane, ethylene, n-butane, and 1-butene, fluorescence from H (n=3→2), CH (AΔ2, BΣ−2, and CΣ+2→XΠ2), or C2 (dΠg3→aΠu3) is observed in the spectrum. It shows that the fragmentation is a universal property of
Fanao, Kong, Qi, Luo, Huailiang, Xu, Mehdi, Sharifi, Di, Song, See Leang, Chin   +5 more
openaire   +2 more sources

A Thermal Model of Wire Explosions in Methane

1968
Explosions of various metals into methane were used to develop a thermal model for the interaction of exploding wires with this hydrocarbon. This model has wider implications that are useful in predicting the behavior toward exploding wires of other gases whose endothermic pyrolyses can be initiated by this technique. Calorimetry, product analysis, and
Bernard Siegel, Richard L. Johnson
openaire   +1 more source

Laser-induced dissociation and explosion of methane and methanol

Journal of Physics B: Atomic, Molecular and Optical Physics, 2002
Femtosecond laser-field-induced dissociation and explosion of polyatomic molecules methane and methanol were experimentally investigated by using a time-of-flight mass spectrometer and a chirped pulse amplifier laser. Both linearly polarized and circularly polarized femtosecond laser pulses were used.
Chengyin Wu, Haizhen Ren, Tingting Liu, Ri Ma, Hong Yang, Hongbing Jiang, Qihuang Gong   +6 more
openaire   +1 more source

Experimental study on unconfined methane explosion: Explosion characteristics and overpressure prediction method

Journal of Loss Prevention in the Process Industries, 2021
Abstract Explosion accidents have become the main threat for the high-efficiency use of cleaner gas energy sources, such as natural gas. During an explosion, obstacle causing flame acceleration is the main reason for the increase of the explosion overpressure, which still remains to be fully understood.
Yonghao Zhou, Yanchao Li, Haipeng Jiang, Lei Huang, Kai Zhang, Wei Gao   +5 more
openaire   +1 more source

Explosion characteristics of methane-ethane mixtures in air

Journal of Loss Prevention in the Process Industries, 2017
Abstract Experiments were systematically performed in a standard 20-L spherical vessel to measure the explosion parameters of different methane-ethane/air mixtures. Data were scrutinized and carefully compared to elucidate the explosion characteristics.
Xiaobo Shen, Bo Zhang, Xiaoliang Zhang, Guangli Xiu   +3 more
openaire   +1 more source

Analysis of the circumstances of methane explosions at the mines of Ukraine

Geo-Technical Mechanics, 2021
The article analyzes and summarizes the circumstances of methane explosions in mines of Ukraine over the past 50 years, which occurred as a result of the formation of dangerous methane concentrations in the outgoing jets of mining areas. Both explosions in excavation areas and explosions associated with gas contamination of areas that occurred outside ...
openaire   +1 more source