modelDirect

Direct heating ETS model for district energy systems with in-building pumping and deltaT control

Extends from Buildings.DHC.ETS.BaseClasses.PartialDirect.

Information

Direct heating energy transfer station (ETS) model with in-building pumping and deltaT control. The design is based on a typical district heating ETS described in ASHRAE's District Heating Guide. As shown in the figure below, the district and building piping are hydronically coupled. The control valve ensures that the return temperature to the district heating network is at or below the maximum specified value. This configuration naturally results in a fluctuating building supply tempearture.

DC ETS Direct

Reference

American Society of Heating, Refrigeration and Air-Conditioning Engineers. (2013). Chapter 5: Consumer Interconnection. In District Heating Guide.

Revisions

  • March 27, 2024, by David Blum:
    Update icon and fix port orientation to align with convention.
    This is for issue #3606.
  • January 8, 2024, by David Blum:
    Correct documentation to describe heating. This is for issue 3628.
  • April 7, 2023, by David Blum:
    First implementation.