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dc.contributor.authorZhang, Fangfang
dc.contributor.authorYu, Mingzhi
dc.contributor.authorSørensen, Bjørn R.
dc.contributor.authorCui, Ping
dc.contributor.authorZhang, Wenke
dc.contributor.authorFang, Zhaohong
dc.date.accessioned2023-02-13T12:26:48Z
dc.date.available2023-02-13T12:26:48Z
dc.date.issued2022-06-01
dc.description.abstractA model is proposed to analyze the heat transfer of deep borehole heat exchanger (DBHE)arrays. Based on this, a dimension reduction algorithm is proposed for the numerical simulation of heat transfer of DBHE arrays, which can improve calculation speed by several orders of magnitude compared with that by the CFD software. An index of heat extraction capacity (HECI) is adopted to evaluate the heat extraction capacity of DBHE arrays. The influence of borehole spacing, operation time, annual heating duration, terrestrial heat flow rate, borehole depth, soil thermal parameters, pipe diameter and circulating fluid flow rate on DBHE array heat extraction capacity and its attenuation are analyzed. The results show that the borehole spacing, operation time, and annual heating duration all have apparent influence on DBHE array heat extraction capacity and its attenuation rate, while the others only have apparent influence on the heat extraction capacity. According to the calculation results, when the DBHE arrays have a service lifetime of 20–50 years, the recommended borehole spacing range is 40–70 m.en_US
dc.identifier.citationZhang, Yu, Sørensen, Cui, Zhang, Fang. Heat extraction capacity and its attenuation of deep borehole heat exchanger array. Energy. 2022;254en_US
dc.identifier.cristinIDFRIDAID 2045222
dc.identifier.doi10.1016/j.energy.2022.124430
dc.identifier.issn0360-5442
dc.identifier.issn1873-6785
dc.identifier.urihttps://hdl.handle.net/10037/28540
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalEnergy
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleHeat extraction capacity and its attenuation of deep borehole heat exchanger arrayen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)