Description
This model is based on data from a Remeha boiler. It is used in the Boiler model.
The nominal power of the original boiler is 10.1 kW at 50/30 degC water temperatures. The efficiency in this point is 92.2% on higher heating value.
First, the efficiency is interpolated for the return water temperature and flowrate at 5 different modulation levels. These modulation levels are the FUEL input power to the boiler. The results are rescaled to the nominal power of the modelled heatpump (with QNom/QNom_data) and stored in a vector, eta_vector.
Finally, the initial modulation is calculated based on the asked power and the max power at operating conditions:
If the boiler is on another modulation, interpolation is made to get eta at the real modulation.
This model takes into account environmental heat losses of the boiler. In order to keep the same nominal eta's during operation, these heat losses are added to the computed power. Therefore, the heat losses are only really 'losses' when the boiler is NOT operating.
The eta is calculated as the heat delivered to the heatedFluid divided by the fuel consumption PFuel.
This model is used in the Boiler model. If a different gas boiler is to be simulated, copy this Burner model and adapt the interpolation tables.
See the Boiler model.
Name | Description |
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Medium | Medium in the component |