modelDryHydrostatic
calculation of the volume flow rate using the dry pressure loss and the hydrostatic pressure loss2
Extends from BasicPressureLossPlate (basic pressure loss model for a plate column).
Information
The pressure loss correlation was taken from [1]. It uses a zeta-value which is specific to the plate type used and has to be supplied in the geometry record.
[1] Stichlmair, Chem.Ing.Techn. 50 (1978)
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | n (from BasicPressureLoss) | 8 | |
| Use of nominal values | |||
| Boolean | rho_const (from BasicPressureLoss) | false | rho is set constant (rho = rho_nom) for calculation of k |
| SI.Density | rho_l_nom (from BasicPressureLoss) | 1000 | |
| SI.Density | rho_v_nom (from BasicPressureLoss) | 1 | |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| MediumLiquid.ThermodynamicProperties[n] | propsLiq (from BasicPressureLoss) | ||
| MediumVapour.ThermodynamicProperties[n] | propsVap (from BasicPressureLoss) | ||
| SI.VolumeFlowRate[n] | Vdot_l (from BasicPressureLoss) | ||
| SI.Pressure[n + 1] | p (from BasicPressureLoss) | ||
| SI.VolumeFlowRate | Vdot_in (from BasicPressureLoss) | ||
| Real[n] | eps_liq (from BasicPressureLoss) | ||
| SI.VolumeFlowRate[n] | Vdot (from BasicPressureLoss) | ||
| SI.Pressure | p_v_in (from BasicPressureLoss) | ||
| HomotopyMethod | homotopyMethod (from BasicPressureLoss) | ||
| Geometry | geometry (from BasicPressureLossPlate) | ||
| SI.Height[n] | h (from BasicPressureLossPlate) | height of the 2ph region on the tray | |
| Real[n] | eps_liq_2ph (from BasicPressureLossPlate) | liquid fraction in the two-phase area on the tray | |
| Boolean[n] | startUp (from BasicPressureLossPlate) | ||
| SI.Pressure[n] | deltaP_liq | pressure loss due to the liquid on the tray | |
| SI.Density[n - 1] | rho_v_av |