Results 41 to 50 of about 4,519,794 (278)

Application of Solenoid Valves for Tram Hydraulic Braking Force Control

open access: yesChengshi guidao jiaotong yanjiu
[Objective] The control solenoid valves in the hydraulic braking system of trams mainly include proportional pressure reducing valve and high-speed switching valve. Due to the structural characteristics, the former is poor in pollution resistance and has
ZHANG Yanwei   +4 more
doaj   +1 more source

Study of the influence laws of the flow and cavitation characteristics in an injector control valve

open access: yesEnergy Science & Engineering, 2022
Fuel cavitation can cause damage to the structure of an injector control valve, which can further affect the service life of the injector. Therefore, it is of great importance to carry out research on the mechanism of cavitation in injector control ...
Rina Ren   +5 more
doaj   +1 more source

A study on the Joule-Thomson effect of during filling hydrogen in high pressure tank

open access: yesCase Studies in Thermal Engineering, 2023
With the development of the hydrogen fuel cell automobile industry, higher requirements are put forward for the construction of hydrogen energy infrastructure, the matching of parameters and the control strategy of hydrogen filling rate in the ...
Ji-Qiang Li   +5 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

open access: yesAdvanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees   +6 more
wiley   +1 more source

Flow Field Simulation and Coupled Stress Field Calculation of the Natural Gas Distribution Valve

open access: yesShiyou jixie, 2015
The pressure reducing valve with complicated structure is prone to having the issues of uncoordinated deformation and severe stress concentration under working pressure conditions,leading to issues like valve body failure,reduced service life and gas ...
Zhang Bo, Li Yukun, Jing Rongjuan
doaj  

Numerical and experimental analysis of cavitation characteristics in safety valves of the nuclear power second circuit using a modified cavitation model

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Cavitation frequently arises in the safety valve of nuclear power plants’ secondary circuits operating under high pressure conditions. This study integrates valve flow characteristics and velocity strain rate corrections into the Zwart-Gerber-Belamri ...
Qingye Li   +5 more
doaj   +1 more source

Model‐Guided Design of Paper Membrane Architectures for Controlled Flow and Enhanced Diagnostic Sensitivity

open access: yesAdvanced Engineering Materials, EarlyView.
Geometrical modifications on nitrocellulose membranes can result in observable differences in signal intensity relative to a reference membrane (top and bottom left). Using two reference experiments, we have developed a theoretical model that can reproduce the experimentally observed flow changes and provide information on membrane parameters, e.g ...
Maria Dimaki   +2 more
wiley   +1 more source

Flow and droplet evaporation characteristics of high parameter temperature and pressure reducing valves under off-design conditions

open access: yesCase Studies in Thermal Engineering
The temperature and pressure reducing valve exhibits complex flow, heat, and mass transfer characteristics under off-design conditions. A three-dimensional simulation model of a multi-stage high-temperature and pressure reducing valve (MSHTPRV) was ...
Heyong Si   +4 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

A study on the flow-pressure characteristics & temperature changes of a novel type of pressure regulator for hydrogen decompression

open access: yesCase Studies in Thermal Engineering
Hydrogen storage and transportation need to be conducted in high-pressure systems, making the study of high-pressure hydrogen pressure-reducing valves crucial.
Ji-Qiang Li   +7 more
doaj   +1 more source

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