Analysis of the applicability of schematization based on the porous zone function for the numerical calculation of the flowing part of an air filter with a short diffuser

2020 ◽  
Author(s):  
N. Yu. Fil'kin ◽  
V. L. Yusha
Keyword(s):  
Numerical Calculation ◽  
Air Filter ◽  
Porous Zone

The Effect of Ventilation Mixed Coefficient on Main Filter Efficiency

2012 ◽  
Vol 594-597 ◽  
pp. 2090-2094
Author(s):  
Yue Sheng Fan ◽  
Wei Xie ◽  
Jin Tao Li ◽  
Lu Ye Li ◽  
Hui Xin Shi
Keyword(s):  
Numerical Calculation ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Filtration Efficiency ◽  
Mass Balance Equation ◽  
Air Filter ◽  
Heterogeneous Model ◽  
Filter Efficiency ◽  
Air Mixing ◽  
The Relationship

In order to improve indoor air quality, the effect of ventilation mixed coefficient on main filter efficiency was analyzed. A mass balance equation for a well-mixed space was built. Some design equations for determination the main filtration efficiency was introduced. Because the air mixing is not perfect, the formula of air filter efficiency calculation on heterogeneous model was deduced. In addition, the relationship between ventilation parameters and the main filter efficiency was also analyzed. Through numerical calculation, the main filter efficiency under different heterogeneous coefficient is calculated. The results show that when the heterogeneous coefficient between 0.6 and 0.8, the main filter efficiency can take 1.30 to 1.80 to correct.

VELOCITY DISTRIBUTION EFFECTS IN AIR FILTER TESTING

2001 ◽  
Vol 19 (1) ◽  
pp. 1-21 ◽  
Author(s):  
FRANK CHAMBERS ◽  
ABDEL AL-SARKHI ◽  
SHENGHONG YAO
Keyword(s):  
Velocity Distribution ◽  
Air Filter

Numerical calculation and stress analysis of crack evolution in coal with a central hole under nonuniform load

2017 ◽  
Vol 59 (9) ◽  
pp. 811-821
Author(s):  
Hongbao Zhao ◽  
Huan Zhang ◽  
Guilin Hu ◽  
Feihu Wang ◽  
Hongbing Wang
Keyword(s):  
Numerical Calculation ◽  
Stress Analysis ◽  
Central Hole ◽  
Crack Evolution ◽  
Nonuniform Load
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