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VolumeFlowControllerHeat

Symbol

VolumeFlowControllerHeat_symbol.JPG

Use

The volume flow controller regulates the volume flow of heating systems depending on the current system temperature.

Parameters and Connectors

VolumeFlowControllerHeat_symbol.JPG
VolumeFlowControllerHeat_parameter.JPG

The reference volume flow is controlled by a current measured temperature (▶TAct) and a reference temperature (▶TRef). If the measured temperature (e.g. storage temperature) exceeds the reference temperature by deltaTup the volume flow output is set to 0. If the measured temperature falls below the reference temperature by deltaTlow the volume flow output is set to qvMax. A linear interpolation is performed between these extreme values.

Model Background

The following figure shows how the output volume flow behaves as a function of the temperature difference between ▶TAct and ▶TRef. In this case, deltaTup = 1, deltaTlow = -1 and qvMax = 3 m³/s are assumed.

VolumeFlowControllerHeat_VolumeFlow.JPG.png
26 September 2025