modelPartialPipeCorrelation
Base class for heat transfer correlations for pipe flow
Extends from Greenhouses.Flows.FluidFlow.HeatTransfer.BaseClasses.PartialHeatTransferCorrelation (Base class for all heat transfer correlations).
Information
Pipe flow correlations
The model PartialPipeCorrelationis the base model for the calculation of heat transfer coefficients for pipes. It returns an enhanced HTC U and requires the characteristic length (hydraulic diameter) as input. For non-circular cross sections, the additional parameter A_cro can be used to decaouple wetted perimeter and velocity calculations.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Geometry | |||
| Modelica.Units.SI.Length | d_h | Hydraulic diameter | |
| Advanced geometry | |||
| Modelica.Units.SI.Area | A_cro | Modelica.Constants.pi*d_h^2/4 | Cross-sectional area |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.MassFlowRate | m_dot (from PartialHeatTransferCorrelation) | Inlet massflow | |
| Modelica.Units.SI.HeatFlux | q_dot (from PartialHeatTransferCorrelation) | Heat flow rate per area [W/m2] | |
| Modelica.Units.SI.CoefficientOfHeatTransfer | U (from PartialHeatTransferCorrelation) |