This model extends IDEAS.Examples.Tutorial.DetailedHouse.DetailedHouse5 by adding an HVAC system. The system consists of a water-water heat pump, radiators, a storage tank, circulation pumps and a heat source at a constant temperature of 10°C for the heat pump. The model includes constant control setpoints for the heat pump and pumps. An integrator block is incorporated to measure the electrical energy consumption of the heat pump.
Most models include a parameter energyDynamics,
which determines how the energy balance equations are solved. In
this example, it should be set to FixedInitial. This setting
allows to define specific initial conditions, which are by default
the values of the Medium model.
A reference implementation for this example is shown in the figure below.
One notable example is that in each fluid loop the absolute pressure of that loop has to be defined somewhere: pumps and valves only provide information about differential pressures. For this purpose use IDEAS.Fluid.Sources.Boundary_pT and connect it to the loop, which will set the absolute pressure at the connection point.
The figures below show the operative zone temperatures
recZon.TSensor and recZon1.TSensor, the
radiator heat flow rates rad.Q_flow and
rad1.Q_flow, the heat pump condenser temperature
heaPum.con.T and the heat pump heat flow rate
heaPum.QCon_flow.
This example illustrates the importance of control, which is currently not modelled. All pumps and the heat pump are assumed to be active continuously, which is detrimental for the system performance. The COP (heaPum.com.COP) is only about 2.5.
| Name | Description |
|---|---|
| MediumWater | Water Medium |