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label Burse autorenew 2025-09-29, 17:00 history_edu Ioana Dinescu
A PhD scholarship is available at Department of Civil Engineering (Section for Building Physics and Services) at the Technical University of Denmark. The scholarship is sponsored by the Danish Council for Strategic Research and the Technical University of Denmark. The PhD project is carried out within the 4DH - Strategic Research Centre for 4th Generation District Heating Technologies and Systems.

Background and relevance
The project is part of the 4DH work package 1: District Heating Grids and Components.
This WP will focus on the research, development and evaluation of low-temperature district heating systems based on renewable energy. The research will basically provide new knowledge on the hardware and software technologies of the new generation of district heating systems supplying heat to existing buildings that gradually become extensively energy renovated, and new low-energy buildings.



The hypothesis is that low-temperature district heating, with a general supply and return temperature of 50C and 20C, can be used in existing district heating systems, if minor modifications are implemented in the systems for room heating and domestic hot water supply of the existing buildings.

The immediate implementation of the low-temperature technology (10 years) in existing and new district heating systems and buildings makes it possible to use low-temperature renewable heat from geothermal plants and central solar heating plants as well as waste heat from industrial processes directly and thereby replace fossil fuels and imported biomass in the district heating systems. The results of WP1 are used in the other WPs to identify the overall optimal way of realising the energy system without the use of fossil fuels.