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Pipe Sizing for Novel Heat Distribution Technology
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0003-2885-0923
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0001-9069-0807
2019 (engelsk)Inngår i: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, nr 7, artikkel-id 1276Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper assesses pipe sizing aspects for previously proposed, novel, low heat distribution technology with three pipes. Assessment issues include heat loss, pressure loss, and pipe sizing for different typical pipe configurations. This assessment has been provided by the analysis of a case area with single-family houses. Concerning heat loss, the proposed three-pipe solutions have the same magnitude of heat loss as conventional twin pipes, since lower return temperatures compensate for the larger heat loss area from the third pipe. Regarding pressure loss, the main restriction on the size of the third pipe is limited to the pressure loss in the third pipe. Thermostatic valves to manage the flow rate of the third pipe are advocated, since alternative small pumps have not been found to be commercially available. The pipe sizing recommendation is that the third pipe for recirculation purposes can be two to three standard pipe sizes smaller than the corresponding supply and return pipe, if no prosumer is connected in the heat distribution network.

sted, utgiver, år, opplag, sider
Basel: MDPI, 2019. Vol. 12, nr 7, artikkel-id 1276
Emneord [en]
low temperature, district heating, pressure gradients, three-pipe system, 4GDH-3P
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-39198DOI: 10.3390/en12071276OAI: oai:DiVA.org:hh-39198DiVA, id: diva2:1302256
Prosjekter
TEMPO
Forskningsfinansiär
EU, Horizon 2020, 768936Tilgjengelig fra: 2019-04-04 Laget: 2019-04-04 Sist oppdatert: 2019-04-04bibliografisk kontrollert

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