.Buildings.DHC.Examples.Cooling.ElectricChillersDirectETS

Information

This model illustrates an example of district cooling system, consisting of a cooling plant with parallel electric chillers ( Buildings.DHC.Plants.Cooling.ElectricChillerParallel), a two-pipe distribution network with plug flow pipes ( Buildings.DHC.Networks.Distribution2PipePlugFlow_v), and time series building load that have directly connected ETS with the chilled water return temperatures controlled above a minimum threshold ( Buildings.DHC.Loads.Cooling.BuildingTimeSeriesWithETS). This configuration is illustrated in the schematic below.

Contents

Name	Description
Medium	Medium model for water

Revisions

• August 22, 2023, by Michael Wetter:
  Changed call to loadResources. This is needed for Dymola 2024x beta1 on Linux.
• January 2, 2023, by Kathryn Hinkelman:
  Revised chilled water pump controls to be constant speed and running 1-and-1 with the chillers.
  Changed building-side ets from direct uncontrolled to controlled.
  Revised distribution network from fixed resistance pipes to plug flow pipes.
• December 21, 2022, by Kathryn Hinkelman:
  Corrected dpMea location to be at the terminal building. Removed in-building pumping for direct uncontrolled ETS example.
  This is for #2912.
• December 18, 2022, by Kathryn Hinkelman:
  Relocated dp sensor for CHW pump control to most distal building. This is for #2912.
• March 20, 2022, by Chengnan Shi:
  First implementation.