.Buildings.HeatTransfer.Windows.BaseClasses.InteriorConvection

Information

This is a model for a convective heat transfer for interior, room-facing surfaces. The parameter conMod determines the model that is used to compute the heat transfer coefficient:

• If conMod= Buildings.HeatTransfer.Types.InteriorConvection.Fixed, then the convective heat transfer coefficient is set to the value specified by the parameter hFixed.
• If conMod= Buildings.HeatTransfer.Types.InteriorConvection.Temperature, then the convective heat tranfer coefficient is a function of the temperature difference. The convective heat flux is computed using
  • for floors the function Buildings.HeatTransfer.Convection.Functions.HeatFlux.floor
  • for ceilings the function Buildings.HeatTransfer.Convection.Functions.HeatFlux.ceiling
  • for walls the function Buildings.HeatTransfer.Convection.Functions.HeatFlux.wall

This model is identical to Buildings.HeatTransfer.Convection.Interior except that it has an input u that is used to scale the heat transfer. This can be used if the heat transfer area is variable. An example usage is for a window with shade, in which the surface area of a shaded part of a window changes depending on the shading control signal.

Revisions

• February 11, 2022, by Michael Wetter:
  Change parameter isFloor to is_floor, and isCeiling to is_ceiling, for consistency with naming convention.
• April 14, 2020, by Michael Wetter:
  Changed homotopyInitialization to a constant.
  This is for IBPSA, #1341.
• March 2, 2015, by Michael Wetter:
  First implementation.