Vaillant Arotherm+ datasheet vs model
This tool compares the 5kW Vaillant Arotherm+ datasheet performance tables with a simple Carnot-based model to see how well the model fits real-world data.
| Ambient °C | {{ speed }} rps |
|---|---|
| {{ ambient_temp }} |
{{ data['5kW'][active_flow_temp].cop[amb_index][speed_index] }}
({{ data['5kW'][active_flow_temp].sim_cop[amb_index][speed_index] }})
{{ data['5kW'][active_flow_temp].output[amb_index][speed_index] }} kW
|
Mean absolute error between model and datasheet: {{ mean_abs_error.toFixed(3) }} COP across all data points
Model Equations
Fixed offset Carnot model:
Tcondensing = Tflow + {{ condensing_fixed_offset }}°C
Tevaporating = Tambient + {{ evaporating_fixed_offset }}°C
COP = {{ practical_cop_factor }} × (Tcondensing + 273.15) / (Tcondensing - Tevaporating)
Variable offset Carnot model (speed dependent):
Tcondensing = Tflow + (speed/120) × {{ condensing_scale }}°C
Tevaporating = Tambient + (speed/120) × {{ evaporating_scale }}°C
COP = {{ practical_cop_factor }} × (Tcondensing + 273.15) / (Tcondensing - Tevaporating)
Variable offset Carnot model (output dependent):
Tcondensing = Tflow + (output/{{ max_output }}) × {{ condensing_scale }}°C
Tevaporating = Tambient + (output/{{ max_output }}) × {{ evaporating_scale }}°C
COP = {{ practical_cop_factor }} × (Tcondensing + 273.15) / (Tcondensing - Tevaporating)
Model parameters
The model uses the Carnot COP equation with some practical adjustments to better fit the real-world data. You can adjust these parameters to see how they affect the model fit.