Numerical analysis of flow field in link rod butterfly valve for high-temperature steam

2020 ◽  
Vol 42 (4) ◽  
Author(s):  
Biao Kan ◽  
Lijuan Chen
Keyword(s):  
High Temperature ◽  
Numerical Analysis ◽  
Flow Field ◽  
Butterfly Valve ◽  
High Temperature Steam

Three-Dimensional Analysis of Partially Open Butterfly Valve Flows

1996 ◽  
Vol 118 (3) ◽  
pp. 562-568 ◽  
Author(s):  
Chendong Huang ◽  
Rhyn H. Kim
Keyword(s):  
Numerical Simulation ◽  
Numerical Analysis ◽  
Flow Field ◽  
Dimensional Analysis ◽  
Three Dimensional ◽  
Fluid Flows ◽  
Butterfly Valve ◽  
Valve Design ◽  
Incompressible Fluid Flows ◽  
Physical Phenomena

A numerical simulation of butterfly valve flows is a useful technique to investigate the physical phenomena of the flow field. A three-dimensional numerical analysis was carried out on incompressible fluid flows in a butterfly valve by using FLUENT, which solves difference equations. Characteristics of the butterfly valve flows at different valve disk angles with a uniform incoming velocity were investigated. Comparisons of FLUENT results with other results, i.e., experimental results, were made to determine the accuracy of the employed method. Results of the three-dimensional analysis may be useful in the valve design.

Simulation of high-temperature steam-only gasification of woody biomass with dry-sorption CO2capture

2016 ◽  
Vol 94 (9) ◽  
pp. 1648-1656 ◽  
Author(s):  
Ehsan Mostafavi ◽  
Jennifer H. Pauls ◽  
C. Jim Lim ◽  
Nader Mahinpey
Keyword(s):  
High Temperature ◽  
Woody Biomass ◽  
High Temperature Steam

High activity oxide Pr0.3Sr0.7Ti0.3Fe0.7O3−δ as cathode of SOEC for direct high-temperature steam electrolysis

2017 ◽  
Vol 42 (17) ◽  
pp. 12104-12110 ◽  
Author(s):  
Lijuan Zhang ◽  
Zhihong Wang ◽  
Zhiqun Cao ◽  
Lin Zhu ◽  
Pengzhang Li ◽  
...  
Keyword(s):  
High Temperature ◽  
High Activity ◽  
High Temperature Steam

Numerical Analysis of the Turbulent Flow Field Applied to Thermal Spallation Drilling

2004 ◽  
Author(s):  
Angela O. Nieckele ◽  
Luis Fernando Figueira da Silva ◽  
Joa˜o Carlos R. Pla´cido
Keyword(s):  
Reynolds Number ◽  
Numerical Analysis ◽  
Flow Field ◽  
Gas Phase ◽  
Accurate Determination ◽  
Rock Surface ◽  
Drilling Technique ◽  
High Reynolds ◽  
Drilling Conditions ◽  
Volume Method

Thermal spallation is a possible drilling technique which consists of using hot supersonic jets as heat source to perforate hard rocks at high rates. This work presents a numerical analysis of a typical spallation drilling configuration, by the finite volume method. The time-averaged conservation equations of mass, momentum and energy are solved to determine the turbulent compressible gas phase flow field. Turbulence is predicted by the classical high Reynolds number κ-ε model, as well as with a low Reynolds number κ-ε model. The influence of the jet Reynolds number is investigated. Special attention is given to the rock surface temperature, since its accurate determination is required to predict spallation rates under field-drilling conditions.

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