9 Calculation The initial pressure loss of Zhijin net can be estimated using the following formula. Initial pressure drop of wire mesh is calculated by the following equation. ⊿P＝α×μ×ｕ＋β×ρ×ｕ2 ⊿P： Pressure drop u: Flow velocity [m/s] (= flow rate [l/min] ÷ filter area [cm2] × 6) Velocity α: Viscous resistance coefficient β (m-1) Inertial resistance coefficient μ: Viscosity [Pa・s] Viscosity ρ: Density [kg/m3] α and β in the Density equation are resistance coefficients, as shown in the table below. α and β are resistance coefficients. See the table below. Weave wire diameter (mm) Wire diameter mesh Mesh count α (m-1) β (-) flat weave Plain 0.4 20 9.41 x 104 0.92 0.21 40 1.52 x 105 1.01 0.17 50 1.83 x 105 1.10 0.10 0.12 80 3.19 x 105 1.5 1.50 1.60 1.60 10.60 x 1.60 10 10 1.60 10 1.60 1.60 1.60 10 1.60 1.5 1.6 ※The data shown in the table and graph is an example of the experimental results. Values in these graphs and tables were obtained from our experimental results. Other types of weave Reversed plain dutch Reversed twilled dutch Five-heddle twilled cedar twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled herringbone, Basket weave, etc.
RkJQdWJsaXNoZXIy NDY3NTA=