.Greenhouses.Components.HVAC.HeatPump .Greenhouses.Components.HVAC.HeatPumpThis heat pump model does not consider part-load operation (ON/OFF regulation is assumed). The heating power and the heat soure temperature are computed by assuming a linear correlation between their actual and nominal values. The electrical efficiency is computed assuming a constant second-law efficiency, parameter of the model.
The primary fluid is modeled by means of 1-D incompressible fluid flow model (Cell1DimInc), in which a dynamic energy balance and static mass and momentum balances are applied on the fluid. The heat transfer in the primary fluid is modeled with a constant heat transfer coefficient. However, it can be changed to other heat transfer models through the HeatTransfer parameter in the fluid model.
Furthermore, the model includes a Boolean input connector on_off, which defines the operational state of the heat pump. In the equations, the Boolean input is translated to a variable value together with a first order block, which can take into account a start-up time constraint.
| Name | Description |
|---|---|
 Medium | Medium in the component |