Results 11 to 20 of about 660,505 (314)
Pressure Drop Hysteresis of Hydrodynamic States in Packed Tower for Foaming Systems [PDF]
, 2011 An experimental investigation was carried out to determine the effects of gas and liquid flow velocities and surface tension on the two-phase phase pressure drop a in a downflow trickle bed reactor. Water and non-Newtonian foaming solutions were employed
Renu Gupta +3 more
core +1 more source
, 2021 The current investigation aimed to identify pressure gradients and to study the fully developed flow patterns of oil-gas as a blend in a pipe of internal diameter 50 mm and 6 m length with different orientations of 0, 30, and 45-degree.
Khalifa, Shwan M. Noori +4 more
core +1 more source
GMAW shielding gas flow optimisation by refinement of nozzle geometry [PDF]
, 2013 With an ongoing demand to improve the efficiency of the gas metal arc welding process, steps are being taken to reduce the shielding gas consumption. However, sufficient shielding gas coverage of the weld region is essential for the generation of high ...
S.W. Campbell +5 more
core +1 more source
Shock and Vibration, 2021 To research the percolation rate of gas-filled coal based on true triaxial condition, this paper uses the three-phase coupling true triaxial servo test device to carry out the seepage test of coal, and the percolation rate of coal under different ...
Xiao Fukun +3 more
doaj +1 more source
Shock and Vibration, 2018 A series of tests on characteristics of acoustic emission have been performed on sandstone under uniaxial, conventional, and triaxial conditions and the unloading confining pressure path.
Tao Qin +6 more
doaj +1 more source
Geofluids, 2022 At present, the theory of supporting the surrounding rock small structure of gob-side entry driving has been widely used, but there is no specific quantitative analytical formula for the bearing strength and bearing characteristics of the structure ...
Shunjie Huang +6 more
doaj +1 more source
Ultrasound in gas–liquid systems: Effects on solubility and mass transfer [PDF]
, 2008 The effect of ultrasound on the pseudo-solubility of nitrogen in water and on gas–liquid mass transfer kinetics has been investigated in an autoclave reactor equipped with a gas induced impeller.
Wilhelm, Anne-Marie +3 more
core +1 more source
Shock and Vibration, 2020 This paper examines the effects of borehole arrangement on the failure process of coal-like materials based on its energy conversion and acoustic characteristics from the perspectives of energy, AE energy, AE spectrum, and frequency band.
Chuanbo Hao +3 more
doaj +1 more source
Experimental study and weighting analysis of factors influencing gas desorption
Frontiers in Earth Science, 2023 Gas is one of the necessary contributing factors for coal and gas outburst accidents, and the gas desorbed in coal is the energy carrier in the outburst process.
Xin He +6 more
doaj +1 more source
Study of the dynamics for gas accumulation in the annulus of production wells
Записки Горного института, 2021 Accumulation of associated petroleum gas in the annulus is one of the negative factors that impede the intensification of mechanized oil production. An increase in annular gas pressure causes growth of bottomhole pressure, a decrease in back pressure to ...
Kamil R. Urazakov +2 more
doaj +1 more source