29 Jun 2020

Transformation Roadmap from High to Low Temperature District Heating Systems

Transformation roadmap is a project funded by the International Energy Agency Technology Collaboration on District Heating and Cooling including Combined Heat and Power (IEA DHC). This international research project has been focusing on identification of early and vital information about this transformation to a future fourth generation of district heating technology from previous technology generation shifts, current generation experiences, and early research attempts for this new district heating technology.

Every new technology generation for district heating has been characterized by lower distribution temperatures in the thermal grids, revealing that the temperature levels in these grids are important performance indicators. This conclusion is also valid for the new fourth generation, aiming at even lower temperatures in the thermal grids. Hence, the title of this project was chosen as ‘Transformation Roadmap from High to Low Temperature District Heating Systems’.

Date of publication: April 30, 2017

Authors: Helge Averfalk, Sven Werner (Halmstad University, Sweden), Clemens Felsmann, Karin Rühling (TU Dresden, Germany), Robin Wiltshire (BRE, United Kingdom), Svend Svendsen, Hongwei Li (DTU, Denmark), Jerome Faessler, Floriane Mermoud, Loic Quiquerez (University of Geneva, Switzerland) (IEA-DHC, Annex XI)

Keywords: district heating, technology generations, temperature levels, hydraulic situations, customer heating systems

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