blockTwoTankCoordination

Extends from Modelica.Blocks.Icons.Block (Basic graphical layout of input/output block).

Information

This block routes the connectors on the evaporator side of the ETS depending on whether DHW integration is present. It also sends a signal to open the diversion valve when there is HHW or DHW load present. If the DHW integration is present, this block also controls the mixing valve which directs the condenser water to the HHW or DHW tanks, sometimes both.

When DHW integration is present:

Input: load present Output
DHW HHW yMix yDiv TTop TSet
T T 0.5 1 The one with higher TSet Max of two
T F 0 1 DHW DHW
F T 1 1 HHW HHW
F F 1 0 HHW HHW

Parameters

TypeNameDefaultDescription
Booleanhave_hotWattrueTrue if there is integrated DHW

Connectors

TypeNameDefaultDescription
Buildings.Controls.OBC.CDL.Interfaces.BooleanInputuDhwCharge request from the domestic hot water tank
Buildings.Controls.OBC.CDL.Interfaces.BooleanInputuHeaCharge request from the heating hot water tank
Buildings.Controls.OBC.CDL.Interfaces.BooleanOutputyEnable command
Buildings.Controls.OBC.CDL.Interfaces.RealOutputyMixMixing valve control signal
Buildings.Controls.OBC.CDL.Interfaces.BooleanOutputyDhwCharge command from DHW tank, or false if no tank present

Components

TypeNameDefaultDescription
Buildings.Controls.OBC.CDL.Logical.Sources.ConstantconOutput true as dummy signal if no DHW is present
WithDHWwithDHW
WithoutDHWwithoutDHW

Contents

NameDescription
WithDHW
WithoutDHW