Green City Library Help

HeatController

Symbol

HeatController_symbol.JPG

Use

The heat controller regulates the heat power of heating systems depending on the current system temperature.

Parameters and Connectors

HeatController_symbol.JPG
HeatController_parameter.JPG

The reference heat power 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 heat power output is set to 0. If the measured temperature falls below the reference temperature by deltaTlow the heat power output is set to QHeatMax. 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 QHeatMax = 3 kW are assumed.

VolumeFlowControllerHeat_HeatPower.JPG.png
26 September 2025