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Integration of geothermal storage in CO2 refrigeration systems of supermarkets
KTH.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0002-2895-774X
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
2018 (English)In: Refrigeration Science and Technology, International Institute of Refrigeration, 2018, p. 1265-1272Conference paper, Published paper (Refereed)
Abstract [en]

The aim of this paper is to study the benefits of integrating CO2 trans-critical booster refrigeration system with geothermal storage. The ground is used as a heat sink for sub-cooling during the summer period and as a heat source for extracting heat in the winter season. Using field measurements from medium size supermarkets in Sweden, proposed and the existing system solutions for integrating geothermal storage in CO2 refrigeration systems are modelled and compared with standard CO2 trans-critical booster system. The techno-economical comparative analysis shows that hybrid CO2 trans-critical booster system with ground source heat pump (GSHP) as an integrated geothermal solution has 6% lower annual energy use compared to a stand-alone CO2 system with heat recovery.

Place, publisher, year, edition, pages
International Institute of Refrigeration, 2018. p. 1265-1272
Keywords [en]
CO2 trans-critical booster system, Field measurements, Geothermal storage integration, Modelling, Refrigeration, Supermarkets, Carbon dioxide, Geothermal energy, IIR filters, Models, Refrigerants, Retail stores, Solution mining, Waste heat, Booster system, Comparative analysis, Existing systems, Field measurement, Groundsource heat pump (GSHP), Refrigeration system, Winter seasons, Geothermal heat pumps
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-236385DOI: 10.18462/iir.gl.2018.1387Scopus ID: 2-s2.0-85049826281ISBN: 9782362150265 (print)OAI: oai:DiVA.org:kth-236385DiVA, id: diva2:1260723
Conference
13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, 18 June 2018 through 20 June 2018
Note

QC 20181105

Available from: 2018-11-05 Created: 2018-11-05 Last updated: 2018-11-05Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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