.Buildings.DHC.Loads.BaseClasses.Validation.BaseClasses.FanCoil2PipeHeating

Information

This is a simplified model of a two-pipe fan coil unit for heating. It is intended to be used

• in a case where the room thermal loads are provided as time series: it therefore takes the load as an input, and
• in conjunction with Buildings.DHC.Loads.BaseClasses.FlowDistribution: it therefore computes the water mass flow rate required to meet the load.

For the sake of computational performance, a PI controller is used instead of an inverse model of the heat exchanger to assess the required water mass flow rate. The controller output signal is mapped linearly to both,

• the water mass flow rate, from zero to its nominal value, and
• the air mass flow rate, from zero to its nominal value.

The controller tracks the load while the impact of an unmet load on the room air temperature is assessed with Buildings.DHC.Loads.BaseClasses.SimpleRoomODE.

Revisions

• February 21, 2020, by Antoine Gautier:
  First implementation.