Results 241 to 250 of about 4,879,968 (296)

Study on characteristics of methane explosion flame and pressure wave propagation to the non‐methane area in a connected chamber

Fire and Materials, 2021
This study is aimed at investigating the characteristics of CH4 explosion diffusion and propagation to the non‐methane area. The CH4 explosion pressure and flame were tested with the aid of a self‐built horizontal pipeline system.
Zhoujie Gu, Zhentang Liu, Zhirong Wang, Rongxi Shen, Jifa Qian, Song Lin   +5 more
semanticscholar   +1 more source

A study of pressure characteristics of methane explosion in a 20 m buried tunnel and influence on structural behaviour of concrete elements

, 2021
With increasing use of natural gas in urban metropolitan areas, utility tunnels that contain utility and gas lines have become critical infrastructure. A leak within a gas pipe may cause methane-air explosions in the tunnel, leading to structural damage ...
Qingfei Meng, Chengqing Wu, Jun Li, Pengtao Wu, Shenchun Xu, Zhongqi Wang   +5 more
semanticscholar   +1 more source

Effect of pressure on heat of explosion

Combustion and Flame, 1977
Abstract The heat of explosion of Phenolformaldehyde NH 4 ClO 4 propellant has been measured at various pressures. The data fit the empirical equation Q = a + bP − cP2. The values of constants b and c could be satisfactorily predicted from thermodynamic standpoint.
H.L. Girdhar, A.J. Arora
openaire   +1 more source

Wire explosion at reduced pressures

19th Intl Congress on High-Speed Photography and Photonics, 1991
Explosion phenomena of silver wires at reduced environmental air pressures have been investigated by applying oscillo-streak photographic technique, which has been designed for more exact temporal correlation between the oscilloscopic and streak records. Expanding speeds of metal cloud and shock wave increase at reduced pressure.
Eun S. Lee, Ung Kim, So Y. Song, Sang-Soo Lee, Kyu Soo Jhung   +4 more
openaire   +1 more source

Influence of ducting on the explosion pressure

Combustion and Flame, 1986
Abstract In spite of many investigations of pressure generation due to gaseous explosions in a vessel there is no reliable correlation between the experimental data and the theoretical models. It was shown that such factors as the presence of obstacles [1] and the acoustical feedback [2] can lead to a dramatic increase in pressure in the vessel in ...
W. Kordylewski, J. Wach
openaire   +1 more source

Explosive gas pressure and work

International Journal of Mining Engineering, 1984
The inference is that work produced by an explosive tends to be a result of explosive generated gas pressure rather than the more constant shock energy. The breakage and adiabatic work respond to calculated borehole pressure relationships with a very high correlation.
Robert R. Britton, Jozsef S. Gozon
openaire   +1 more source

The Pressures developed in Gaseous Explosions

Nature, 1928
IN the current issue of the Journal of the Chemical Society (Jan. 1928), Dr. G. B. Maxwell and Prof. R. V. Wheeler have published a paper entitled “The Pressures produced on Inflammation of Mixtures of (a) Carbon Monoxide and Air, and (b) Hydrogen and Air in a Closed Vessel.” From their carbon monoxide—air results they deduce the dissociation of carbon
W. T. DAVID, B. H. THORP
openaire   +1 more source

Experimental and numerical study on the high-pressure hydrogen jet and explosion induced by sudden released into the air through tubes

International journal of hydrogen energy, 2020
Experiment and simulation were conducted to study the development process of jet fire and explosion induced by the high-pressure hydrogen spontaneous ignition.
Zhilei Wang, Hang Zhang, Xuhai Pan, Yiming Jiang, Qingyuan Wang, Jianjun Xiao, T. Jordan, Juncheng Jiang   +7 more
semanticscholar   +1 more source

Interaction of flame instabilities and pressure behavior of hydrogen-propane explosion

, 2020
The flame destabilization mechanism of hydrogen-propane-air mixture is firstly revealed. The effects of unstable flame formation on pressure rise rate and burning rate are quantified.
Yanchao Li, Mingshu Bi, Wei Gao, Yonghao Zhou, Lei Huang   +4 more
semanticscholar   +1 more source

Effects of particle size, dust concentration and dust-dispersion-air pressure on rock dust inertant requirement for coal dust explosion suppression in underground coal mines

Chemical engineering research & design, 2019
Coal dust explosion constitutes an ever-present hazard in underground coal mines worldwide. This study examines the effects of important parameters, such as, dust particle size, dust concentration and dust-dispersion-air pressure on rock dust inertant ...
S. Azam, D. P. Mishra
semanticscholar   +1 more source