Results 1 to 10 of about 232,845 (291)

Calculation method of impingement depth and multiple objective optimizations of nozzle layout for aviation gears considering windage [PDF]

open access: yesScientific Reports
As the rotating speed of aviation gears becomes higher and higher, the influence of windage resistance on jet streamline must be considered in lubrication system design.
Linlin Li   +3 more
doaj   +2 more sources

Evaluation of a Jet-Pump for the Improvement of Oil-Water Flow in Pipeline Loops Using CFD Tools [PDF]

open access: yesE3S Web of Conferences, 2021
Despite their low efficiency compared with centrifugal pumps, jet pumps are highly reliable, robust equipment with modest maintenance, ideal for many applications, mainly in the oil & gas industry.
Asuaje Miguel   +2 more
doaj   +1 more source

CFD Investigation on Oil Injection Lubrication of Meshing Spur Gears via Lattice Boltzmann Method

open access: yesLubricants, 2022
The meshless Lattice Boltzmann Method (LBM) is introduced and employed to solve the complex two-phase flow problem of jet lubrication of meshing spur gears. Computational fluid dynamics (CFD) simulations based on LBM are carried out using the model of an
Xiaozhou Hu   +3 more
doaj   +1 more source

The response of the U.S. aviation industry to demand and supply shocks in the oil and jet fuel markets

open access: yesTransportation Research Interdisciplinary Perspectives, 2021
The article disentangles shocks to the global crude oil and U.S. jet fuel markets into demand and supply shocks that underlie both markets, and then examines the effects of these shocks on the U.S. airline industry. I specify a block-recursive structural
Bebonchu Atems
doaj   +1 more source

Effect of flow in the circular 90-degree curved nozzles on ejecting oil jet behavior

open access: yesJournal of Fluid Science and Technology, 2021
In general, technical methods for improving the thermal efficiency of an engine increase the heat load on peripheral components. Recently, a piston cooling gallery equipped with a flow path has been developed.
Mikimasa KAWAGUCHI   +7 more
doaj   +1 more source

Numerical study on the desorption processes of oil droplets inside oil-contaminated sand under cavitation micro-jets

open access: yesUltrasonics Sonochemistry, 2021
The removal of the adsorbed oil droplet is critical to deoiling treatment of oil-bearing solid waste. Ultrasonic cavitation is regarded as an extremely useful method to assist the oil droplets desorption in the deoiling treatment.
Fang Zhao, Qianqian Yan, Daolai Cheng
doaj   +1 more source

Numerical Analysis for Wetting Behaviors of an Oil Jet Lubricated Spur Gear

open access: yesLubricants, 2022
As it is widely employed in the aeronautical transmission system, a better understanding of the oil jet lubrication behavior is vital to determine the total system energy consumption.
Yu Dai   +3 more
doaj   +1 more source

Study on Physicochemical Properties of Tailor-Made Green Jet Fuel Blend from Waste Cooking Oil

open access: yesChemical Engineering Transactions, 2022
The International Air Transport Association (IATA) intended to reduce the greenhouse gases (GHG) emissions from the aviation industry by 50 % in 2050 compared to the year 2005.
Nor Alafiza Yunus   +2 more
doaj   +1 more source

Strategy of Compatible Use of Jet and Plunger Pump with Chrome Parts in Oil Well

open access: yesEnergies, 2021
During oil fields operation, gas is extracted along with oil. In this article it is suggested to use jet pumps for utilization of the associated oil gas, burning of which causes environmental degradation and poses a potential threat to the human body. In
Oleg Bazaluk   +5 more
doaj   +1 more source

Effect of rotational speed of a floating-roof tank mixer on heating efficiency of crude oil

open access: yesYou-qi chuyun, 2021
Mixing the crude oil in a floating-roof tank with a rotary jet mixer during heating can increase the heat exchange so that the crude oil can be heated evenly.
Liyuan ZHOU, Yugang WANG, Zhongmin YANG
doaj   +1 more source

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