9 The initial pressure loss of Calculation 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 loss [Pa] Pressure drop u: Flow velocity [m/s] (= flow rate [l/min] ÷ filtration area [cm2] × 6) Velocity α: Viscous resistance coefficient [m-1] Viscous resistance coefficient β: Inertial resistance coefficient [-] Inertial resistance coefficient μ: Viscosity [Pa・s] Viscosity ρ: Density [kg/m3] α and β in Density are resistance coefficients, as shown in the following table. α and β are resistance coefficients. See the table below. Weave wire diameter (mm) Wire diameter mesh Mesh count α (m-1) β (−) Flat weaving Plain 0.4 20 9.41×104 0.92 0.21 40 1.52×105 1.01 0.17 50 1.83×105 1.10 0.10 0.10 0.12 80 3.19 1.5 1.5 0.1 0.1 0.45 0 2.5 10 0 10 0 0 0 2.6.6.6.6 0 0 0 0 0 0 0 0 0 0 0 0 0 1.6 ※The data shown in the table and graph are examples of 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 twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled twilled t, etc.
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