Results 21 to 30 of about 167,931,681 (292)

Capacity Testing and Local Flow Analysis of a Geometrically Complex Trim Installed within a Commercial Control Valve [PDF]

open access: yes
Industrial control valves often handle flows with very high pressure drops (conditions often referred to as severe service). In order to cope with such pressure drops, geometrically complex valve trims with many stages of pressure drops, are designed to ...
Rakesh, Mishra   +3 more
core   +3 more sources

A computational fluid dynamics evaluation of a pneumatic safety relief valve [PDF]

open access: yes, 2008
Safety relief valves are well established components preventing catastrophic failure of pressurised systems when non-normal operating conditions occur.
Dempster, W.M., Elmayyah, W.
core   +3 more sources

Sealing design optimization of nuclear pressure relief valves based on the polynomial chaos expansion surrogate model

open access: yesNuclear Engineering and Technology, 2023
Pressure relief valve (PRV) is one of the important control valves used in nuclear power plants, and its sealing performance is crucial to ensure the safety and function of the entire pressure system.
Chaoyong Zong   +6 more
doaj   +1 more source

Perspective: the gist of public tender for service design [PDF]

open access: yes, 2018
Governments around the world are increasingly formalising design as an innovative approach to renew public services. In this development, the capabilities of external service design consultancies often play an important part, which calls for new insights
Person, Oscar   +3 more
core   +2 more sources

Design and Experimental Research of a Miniature Digital Hydraulic Valve

open access: yesMicromachines, 2018
A digital hydraulic valve is an important component of the digital hydraulic system, and its performance is directly related to the system function. In order to make the valve system more competitive in dimension, digital valve miniaturization is an ...
Junhui Zhang, Meisheng Yang, Bing Xu
doaj   +1 more source

A Valve Design Methodology For Improved Reciprocating Compressor Performance [PDF]

open access: yes, 2012
The current work directly relates valve dynamics to the compressor energy efficiency. Majority of the previous studies have focused on reducing pressure losses due to valve geometry, towards improved compressor performance.
Angadi, Shruti   +4 more
core   +1 more source

A D-Shaped Bileaflet Bioprosthesis which Replicates Physiological Left Ventricular Flow Patterns. [PDF]

open access: yesPLoS ONE, 2016
Prior studies have shown that in a healthy heart, there exist a large asymmetric vortex structure that aids in establishing a steady flow field in the left ventricle. However, the implantation of existing artificial heart valves at the mitral position is
Sean Guo-Dong Tan   +3 more
doaj   +1 more source

Genetic Algorithm-Based Design Optimization of Electromagnetic Valve Actuators in Combustion Engines

open access: yesEnergies, 2015
In this research, the design of a new electromagnetic engine valve in the limited space of combustion engine is optimized by multidisciplinary simulation using MATLAB and Maxwell. An electromagnetic engine valve actuator using a permanent magnet is a new
Seung Hwan Lee   +3 more
doaj   +1 more source

Design and Research of a New Thermostatic Valve

open access: yesResearch Journal of Applied Sciences, Engineering and Technology, 2014
This study designed a new type of intelligent thermostatic mixing valve which could keep the temperature and flux of the outlet water constant by the adaptive controller. It firstly established mathematical model of the valve about angle-flux and angle-temperature and then it applied the "Fluent" software to numerical simulation of the valve about flow
Chen Hai-Chu   +3 more
openaire   +1 more source

Design of a new mine-used part-turn electric valve controller

open access: yesGong-kuang zidonghua, 2016
In order to improve intelligent level of electric valve controller, a new mine-used part-turn electric valve controller was designed. The controller uses absolute digital encoding technology to achieve high precision valve position detection, and uses ...
WANG Xueming
doaj   +1 more source

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