The Municipality of Copenhagen has proposed an ambitious climate
target. The city has to be CO2 neutral in 2025, which also impacts the production of
district heating. In order to reach the target, “new” technologies, such as
large-scale electrically driven heat pumps (HP), are expected for the
production of district heating.
To obtain experience
and knowledge on large-scale HP installations a new demonstration project,
named SVAF (Store varmepumper til fjernvarme) was initiated. The project
includes installation and long-term operation of two 5 MW HP systems based on
three different heat sources: sea and waste water and geothermal heat. The HPs
are expected to be in operation by 2018 and 2019 respectively.
Together with Danish
Technological Institute, DTU MEK Section of Thermal Energy participates in the
SVAF project as a research group. The work includes investigation of several
objects in relation to implementation of large-scale heat pumps.
For DTU students
studying at the relevant study lines there are several options of master and
bachelor projects within this research area. Some topics are listed below, but
other ideas are welcome for discussion.
· Analysis and comparison of different heat pump
configurations including different arrangement of heat exchanger network and
integration of oil cooling. This includes further delevopement of a pinch analysis applied to heat pumps.
· Comparison of different refrigerants (both
natural as well as HFOs) for large scale heat pumps, including different
· Investigation of optimal unit size for large
scale heat pump systems (<10MW) including part load operation and investment
· Validation of heat pump models based on
experimental data from the SVAF heat pumps and investigation of optimal
operation conditions and control strategy (available for autumn 2018).
All projects will be
carried out in collaboration with relevant SVAF partners (eg. Innoterm, Danish
Technological Institute and HOFOR).