modelBuffer

Buffer tank

Extends from Buildings.Fluid.Interfaces.PartialTwoPortInterface.

Information

Model of a buffer tank based on the instantaneously mixed volume model Buildings.Fluid.MixingVolumes.MixingVolume. Manufacturers recommend tank designs that promote mixing (e.g., with inside baffle plates) because a fully mixed tank yields an effective buffer time greater than a stratified tank. The validation model Buildings.Templates.Components.Validation.Tanks shows that achieving the supply temperature at the tank outlet requires circulating a fluid volume several times greater than the tank's actual volume.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.VolumeVVolume
Configuration
Booleanhave_tantrueSet to true for tank, false for direct pass through
Dynamics › Conservation equations
Modelica.Fluid.Types.DynamicsenergyDynamicsModelica.Fluid.Types.Dynamics.DynamicFreeInitialType of energy balance: dynamic (3 initialization options) or steady state
Graphics
Buildings.Templates.Components.Types.IntegrationPointicon_pipeBuildings.Templates.Components.Types.IntegrationPoint.NonePipe symbol

Components

TypeNameDefaultDescription
Buildings.Fluid.MixingVolumes.MixingVolumevolTank
Buildings.Templates.Components.Routing.PassThroughFluidpasDirect pass through