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Low‐temperature excess heat recovery in district heating systems: The potential of European Union metro stations
Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0003-2885-0923
Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0001-9118-4375
2020 (engelsk)Inngår i: Book of Abstracts: 6th International Conference on Smart Energy Systems / [ed] Henrik Lund, Brian Vad Mathiesen, Poul Alberg Østergaard & Hans Jørgen Brodersen, 2020, s. 34-34Konferansepaper, Oral presentation with published abstract (Annet vitenskapelig)
Abstract [en]

This paper presents an assessment of the excess heat recovery potential from EU metro stations. The assessment is a sub-study on low temperature recovery opportunities, explored in the H2020 ReUseHeat project, and consists of spatial mapping of 1994 underground stations with quantitative estimates of sensible and latent heat, monthly and annually, attainable in rejected platform ventilation exhaust air. Being a low-temperature source, the assessment conceptually anticipates recovery of attainable heat with compressor heat pumps to facilitate the temperature increase necessary for utilisation in district heating systems. Further, the paper explores the influence on useful excess heat volumes from low-temperature heat recoveries when distributed at different temperature levels. The findings, which distinguishes available (resource) and accessible (useful) excess heat potentials, indicate an annual total EU28 available potential of ~21 PJ, characterised by a certain degree of seasonal temporality, and corresponding accessible potentials of ~40 PJ per year at 3rd generation distribution, and of ~31 PJ at anticipated 4th generation conditions. Despite lower accessible volumes, utilisation in 4th generation systems are naturally more energy efficient, since relatively less electricity is used in the recovery process, but also more cost-effective, since heat pumps, at lower temperatures, can be operated at capacities closer to design conditions and with less annual deviations.

sted, utgiver, år, opplag, sider
2020. s. 34-34
Emneord [en]
Excess heat recovery, district heating, heat pumps, geographical information systems, metro stations
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-43299OAI: oai:DiVA.org:hh-43299DiVA, id: diva2:1477049
Konferanse
6th International Conference on Smart Energy Systems (SESAAU2020), 6-7 October, 2020, Online, Aalborg, Denmark
Prosjekter
Recovery of Urban Excess Heat (ReUseHeat)
Forskningsfinansiär
EU, Horizon 2020, 767429Tilgjengelig fra: 2020-10-16 Laget: 2020-10-16 Sist oppdatert: 2021-02-18bibliografisk kontrollert

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