.Buildings.Fluid.HeatExchangers.ThermalWheels.Data.Generic

Information

Record containing performance-related parameters for thermal wheels.

It is used as a template of performance data for the thermal wheel models in Buildings.Fluid.HeatExchangers.ThermalWheels.BaseClasses.

The record contains the parameters, including the nominal mass flow rates, nominal pressure drops, the heat exchanger effectiveness at part load (75% of the nominal supply flow rate) and at nominal conditions, and the wheel power consumption at the nominal wheel speed.

For the variable-speed thermal wheel (have_varSpe=true), the record also includes the following datasets:

• motor percent full-load efficiency versus wheel speed ratio,
• sensible heat exchange effectiveness corrections versus wheel speed ratio,
• latent heat exchange effectiveness corrections versus wheel speed ratio.

Note the following:

• The heat exchange effectiveness corrections versus wheel speed ratio are correction factors that are multiplied with the heat exchange effectiveness that the wheel has a full rotational speed.
• When have_latHEX=true, the dataset of the latent heat exchange effectiveness corrections versus wheel speed ratio is enabled,
• When use_defaultMotorEfficiencyCurve=true, the motor percent full-load efficiency versus wheel speed ratio is disabled, and the default curve (see Buildings.Fluid.Movers.BaseClasses.Characteristics.motorEfficiencyCurve) is used for calculations.

Revisions

• May 28, 2024, by Sen Huang:
  First implementation.