Translation missing: fr.pages.duct_pressure_loss_estimator.understanding_dpl_calculations
Translation missing: fr.pages.duct_pressure_loss_estimator.understanding_dpl_calculations_des
- Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss: Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss_des
- Translation missing: fr.pages.duct_pressure_loss_estimator.dynamic_loss: Translation missing: fr.pages.duct_pressure_loss_estimator.dynamic_loss_des
Translation missing: fr.pages.duct_pressure_loss_estimator.concepts_definitions:
- Translation missing: fr.pages.duct_pressure_loss_estimator.air_density: \(\rho\) [kg/m³]. Standard: \(1.204\ \text{kg/m}^3\). Translation missing: fr.pages.duct_pressure_loss_estimator.air_density_des
- Translation missing: fr.pages.duct_pressure_loss_estimator.air_viscosity \(\mu\) [Pa·s]: Translation missing: fr.pages.duct_pressure_loss_estimator.air_viscosity_des \(1.825 \times 10^{-5}\ \text{Pa·s}\).
- Translation missing: fr.pages.duct_pressure_loss_estimator.airflow_rate \(Q\) [m³/s or CFM]: Translation missing: fr.pages.duct_pressure_loss_estimator.airflow_rate_des (CFM or m³/s).
- Translation missing: fr.pages.duct_pressure_loss_estimator.duct_area \(A\) [m²]: Translation missing: fr.pages.duct_pressure_loss_estimator.duct_area_des
- Translation missing: fr.pages.duct_pressure_loss_estimator.circular_ducts_diameter \[A = \pi \left(\frac{D}{2}\right)^2\]
- Translation missing: fr.pages.duct_pressure_loss_estimator.rectangular_ducts_diameter_txt_1 \(W\) Translation missing: fr.pages.duct_pressure_loss_estimator.rectangular_ducts_diameter_txt_2 \(H\): \[A = W \times H\]
- Translation missing: fr.pages.duct_pressure_loss_estimator.air_velocity \(V\): Translation missing: fr.pages.duct_pressure_loss_estimator.air_velocity_des \[V = \frac{Q}{A}\].
- Translation missing: fr.pages.duct_pressure_loss_estimator.hydraulic_diameter ($D_h$): Translation missing: fr.pages.duct_pressure_loss_estimator.hydraulic_diameter_des
- Translation missing: fr.pages.duct_pressure_loss_estimator.circular_ducts: \(\;D_h = D\)
- Translation missing: fr.pages.duct_pressure_loss_estimator.rectangular_ducts: \(\;D_h = \frac{2WH}{W+H}\)
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss_cal_dw_equation_heading
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss_cal_dw_equation_txt_1 Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss_cal_dw_equation_txt_2:
\[\Delta P_\text{ Translation missing: fr.pages.duct_pressure_loss_estimator.friction } = f \cdot \frac{L}{D_h} \cdot \left(\frac{\rho V^2}{2}\right)\]
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss_cal_dw_equation_txt_3
- \(\Delta P_\text{friction}\) = Translation missing: fr.pages.duct_pressure_loss_estimator.ploss_friction [Pa]
- \(f\) = Translation missing: fr.pages.duct_pressure_loss_estimator.darcy_friction_factor
- \(L\) = Translation missing: fr.pages.duct_pressure_loss_estimator.length_duct [m]
- \(D_h\) = Translation missing: fr.pages.duct_pressure_loss_estimator.hydraulic_diameter_simple [m]
- \(\rho\) = Translation missing: fr.pages.duct_pressure_loss_estimator.air_density_simple [kg/m³]
- \(V\) = Translation missing: fr.pages.duct_pressure_loss_estimator.air_velocity_simple [m/s]
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_heading (\(f\))
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_1
-
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_2 (Re): Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_3
\[\mathrm{Re} = \frac{\rho V D_h}{\mu}\]
- Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_if (\(\mathrm{Re} \leq 2300\)), Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_4 laminar \[f = \frac{64}{\mathrm{Re}}\].
- Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_if (\(\mathrm{Re} > 4000\)), Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_4 turbulent.
- Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_5 \(\varepsilon / D_h\): Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_6 \(\varepsilon\) Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_7 \(D_h\).
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_8
\[f = \frac{0.25}{\left[\log_{10}\!\left(\frac{\varepsilon}{3.7 D_h} + \frac{5.74}{\mathrm{Re}^{0.9}}\right)\right]^2}\]
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_9
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_10
\[\Delta P_\text{ Translation missing: fr.pages.duct_pressure_loss_estimator.dynamic } = K \cdot \left(\frac{\rho V^2}{2}\right)\]
Translation missing: fr.pages.duct_pressure_loss_estimator.friction_loss_cal_dw_equation_txt_3
- \(\Delta P_\text{ Translation missing: fr.pages.duct_pressure_loss_estimator.dynamic }\) = Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_11 [Pa]
- \(K\) = Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_12
- \(\rho\) = Translation missing: fr.pages.duct_pressure_loss_estimator.air_density_simple [kg/m³]
- \(V\) = Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_13 [m/s] Translation missing: fr.pages.duct_pressure_loss_estimator.friction_factor_txt_14
Translation missing: fr.pages.duct_pressure_loss_estimator.total_pressure_loss_heading
Translation missing: fr.pages.duct_pressure_loss_estimator.total_pressure_loss_txt_1:
\[\Delta P_\text{ Translation missing: fr.pages.duct_pressure_loss_estimator.friction } = \sum \Delta P_\text{ Translation missing: fr.pages.duct_pressure_loss_estimator.friction } + \sum \Delta P_\text{ Translation missing: fr.pages.duct_pressure_loss_estimator.dynamic }\]
Translation missing: fr.pages.duct_pressure_loss_estimator.total_pressure_loss_txt_2 [Pa] Translation missing: fr.pages.duct_pressure_loss_estimator.total_pressure_loss_txt_3 \[1~\text{Pa} \approx 0.00401463~\text{in. w.c.}\]