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Exergy analysis and thermo-economic optimization of a district heating network with solar- photovoltaic and heat pumps
KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Kraft- och värmeteknologi.
IMT Atlantique - DSEE - Département Systèmes énergétiques et environnement.
IMT Atlantique - DSEE - Département Systèmes énergétiques et environnement.
KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Kraft- och värmeteknologi.
Vise andre og tillknytning
2019 (engelsk)Inngår i: Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems / [ed] Wojciech Stanek, Paweł Gładysz, Sebastian Werle, Wojciech Adamczyk, 2019Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Electrification of district heating networks, especially using heat pumps, is widely recommended in literature. Installing heat pumps affects both electricity and heating networks. Due to lack of suitable modelling tools, size optimization of heat pumps in the heating network with the full consideration of the electric distribution network is not well addressed in literature. This paper presents an optimization of a district heating network consisting of solar photovoltaic and heat pumps with the consideration of the detail parameters of heating and electric distribution networks. An extended energy hub approach is used to model the energy system. Exergy and energy analyses are applied to identify and isolate lossy branches in a meshed heating network. Both methods resulted into the same reduced topology. Particle swarm optimization is then applied on the reduced topology in order to find out the most economical temperature profiles and size of distributed heat pumps. The thermo-economic results are found to be highly influenced by the heat demand distribution, the power loss in both electric and heat distribution network, the cost of generation, the temperature limits and the coupling effect of the heat pumps.

sted, utgiver, år, opplag, sider
2019.
Emneord [en]
electrification of district heating network, energy hub, exergy, multi-carrier energy systems, particle swarm optimization, thermo-economic optimization
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-261179ISBN: 978-83-61506-51-5 (tryckt)OAI: oai:DiVA.org:kth-261179DiVA, id: diva2:1356963
Konferanse
ECOS2019: 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Tilgjengelig fra: 2019-10-02 Laget: 2019-10-02 Sist oppdatert: 2019-10-02

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