Heat pump coupled with large-scale thermal energy storage in low- and high-temeprature district heating

Alice Tosatto (Speaker), Fabian Ochs, Abdulrahman Dahash

Research output: Chapter in Book or Conference ProceedingsConference Proceedings with Poster Presentationpeer-review

Abstract

This work investigates the effects of a heat pump (HP) coupled with thermal energy storage (TES) in a renewables-based district heating (DH) system. In the current energy transition, the gradual substitution of traditional fossil-based heating plants with renewables-based generation systems requires the introduction of elements (such as storage systems) that guarantee stability in the energy availability. In DH grids, the high investment costs related to the construction of large-scale TES systems call for an efficient operation. In this regard, the introduction of HP enables an increase of the effective TES capacity thanks to the exploitation of the TES as a heat source when the direct use of the stored energy is not anymore possible. This study investigates the influence of the HP integration on the TES performance and the effects on the primary energy requirements 20 and CO2 emissions using a well- established numerical TES model, which takes into account the heat transfer mechanisms within the TES itself and between the TES and the surrounding ground.
Original languageEnglish
Title of host publicationProceedings of 2nd International Sustainable Energy Conference (ISEC) 2022
Pages461-462
Number of pages2
Publication statusPublished - 2022
Event2nd International Sustainable Energy Conference 2022 (ISEC 2022) -
Duration: 6 Apr 20227 Apr 2022

Conference

Conference2nd International Sustainable Energy Conference 2022 (ISEC 2022)
Period6/04/227/04/22

Research Field

  • Efficiency in Industrial Processes and Systems

Keywords

  • hermal Energy Storage
  • District Heating
  • Heat Pump
  • CO2 emissions
  • Renewables

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