• This is a Modelica simulation research for district heating and cooling (DHC) system combined with ground-source heat pump system, based on an actual project in Chongqing, China.
• The research mainly includes the following parts:
  • Simulate the energy consumption of the DHC system when the cooling or heating equipment are connected in parallel or series on the source side;
  • Simulate the hydraulic stability, thermal stability and energy consumption of the DHC system when the decouplers are set at different positions in constant primary flow/variable secondary flow system;
  • Optimize of the DHC system based on the original design and calculate its energy saving rate;
  • And so on.

• This simulation is based on Dymola 2023x and the following libraries:
  • Modelica Standard Library - V4.0.0
  • Modelica Buildings Library - V10.0.0
  • Modelica StateGraph2 Library - V2.1.0

This Modelica package is free software and the use is completely at your own risk; it can be redistributed and/or modified under the terms of the 3-Clause BSD License.