.AixLib.Fluid.FixedResistances.Pipe .AixLib.Fluid.FixedResistances.PipeDynamic Pipe with pipe wall and insulation wall which allows discretisation of pipe wall and pipe insulation. This model considers heat loss through radiation and convection if pipe is not embedded in wall. In case that the pipe is embedded in the wall, heat transfer between the pipe wall / insulation and the surrounding material is based on heat conduction.
Dynamic pipe model with heat losses for various applications. It is possible to choose whether the pipe is embedded in a wall or not. In addition, no insulation can be selected, if used for example for CCA ( concrete core activation).
The model already includes heat-transfer by convection and by radiation. Instead of modeling these phenomena outside the pipe, an ambient temperature can be prescribed at the heat-port and the star of the pipe, so the loss to ambient will be calculated within the pipe model.
For each discretisation of the pipe, there is a connector to the corresponding element of the discretized pipe wall. Each element of the discretised pipe wall is connected to a corresponding element of the discretized insulation wall. The heat-ports and stars of all nodes are then collected to form two single ports, which can be connected to an ambient temperature.
AixLib.Fluid.FixedResistances.Examples.DPEAgg_ambientLoss
| Name | Description |
|---|---|
 FlowModel | Wall friction, gravity, momentum flow |
 HeatTransferConvective | Wall heat transfer |