Sensitivity Analysis of Optimised Large Scale District Heating Heat Pump Concepts

Signe Birkebæk Thomasen, Kim Sørensen, Carsten Bojesen, Kasper Vinther

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Abstract

This paper investigates the sensitivity on choice of heat
pump concept to uncertainties and variations in boundary
conditions for large scale heat pumps with a Danish district
heating system as case example. A performance mapbased
heat pump model is used to evaluate performance of
different heat pump concepts. The heat pump concepts
are optimised in terms of concept design and prepared
for evaluation of feedback control parameters and on/off
strategies, which calls for a nonlinear optimiser such as
genetic algorithms. The optimisation considers the operational
price of the concept, regarding Coefficient Of
Performance (COP), heating capacity and investment cost
and is followed by investigations of the possibility for providing
ancillary services. A sensitivity analysis is carried
out to investigate whether, which and how variations in
cost function weighting affects the optimisation and consequently
the choice of heat pump concept. The results
indicate a very robust optimised concept.
Original languageEnglish
Publication date2020
Number of pages8
Publication statusPublished - 2020

Keywords

  • Heat Pump Modelling
  • Large Scale Heat pumps
  • Optimisation

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