I want to model a district heating system with Modelica Dymola.
Which libraries can be used to model consumers, heat source and district heating network? - typically used - open source or commercial
I would also appreciate tips on how to assemble a simple first model.
You can get a commercial, supported and industrially proven library to model district heating systems from Modelon, the Thermal Power Library, see http://www.modelon.com/products/modelica-libraries/thermal-power-library/. You can e.g. do optimization based scheduling of production units for district heating networks, and a lot more.