Results 11 to 20 of about 4,895,720 (245)
Arc pressure and weld metal fluid flow whilst using alternating shielding gases Part 1 : arc pressure measurement [PDF]
, 2013 As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on gas shielded welding processes, a comparison between the arc pressures generated using argon, helium, alternating shielding gases and pulsed GTAW has ...
Campbell, Stuart +2 more
core +4 more sources
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 +2 more sources
Gas flow through a micro-orifice due to small pressure difference [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Valougeorgis, D +2 more
core +5 more sources
Derivation of forces acting on the liquid weld metal based on arc pressure measurements produced using alternating shielding gases in the GTAW process [PDF]
, 2013 As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on the gas tungsten arc and gas metal arc welding processes, a comparison between arc pressures produced using argon, helium, alternating gases and GTAW-P ...
Campbell, Stuart +2 more
core +3 more sources
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
, 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 +9 more
core +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
GAS LIFTING FOR PRODUCTION OPTIMIZATION USING EXTRA-HIGH-PRESSURE (XHP) GAS FROM NATURAL GAS WELLS WITHOUT COMPRESSION [PDF]
, 2023 Artificial lift techniques are used when reservoir pressure drops below the fluid hydrostatic column weight in the well. A compressor station supplies high-pressure gas for the gas lift system, which includes a gas distribution manifold, gas lift lines ...
Ofesi Felix Samuel +2 more
core +2 more sources
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
Modelling of transient gas-liquid flow and pigging in pipes [PDF]
, 1999 More and more transient gas-liquid operations in pipes are being successfully applied in the oil and gas industry. Pigging in two-phase pipelines, to remove liquid accumulation or for cleaning purposes, is an important transient operation.
Lima, P. C. R.
core +3 more sources