A study for improving the energy efficiency of lifts with adjustable counterweighting

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorTukia, Toni
dc.contributor.authorUimonen, Semen
dc.contributor.authorSiikonen, Marja-Liisa
dc.contributor.authorHakala, Harri
dc.contributor.authorLehtonen, Matti
dc.contributor.departmentDepartment of Electrical Engineering and Automation
dc.contributor.departmentKONE Corporation Finland
dc.date.accessioned2018-12-10T10:14:44Z
dc.date.available2018-12-10T10:14:44Z
dc.date.issued2017-07-01
dc.description.abstractThis article presents a study of the potential energy efficiency improvement by means of adjusting the lift counterweight. The lift energy consumption in different counterweight set-ups is studied by employing measured lift traffic and energy consumption data from an office building in Finland. Overall, dimensioning the counterweight based on traffic analysis is one of the fastest and most cost-effective means of improving the energy efficiency of lifts. The results from the building imply, however, that with a relatively constant loading throughout the day, the continuous adjusting of the counterweight provides limited energy savings compared to systems where the counterweight is sized according to the average load. Nevertheless, active adjustment of the counterweight size may provide considerable savings in lift systems if there is a wide variation in the car loading between the hours of the day. Furthermore, reducing the counterweight potentially improves the ISO 25745-2 energy efficiency classification ofthe lift, thus increasing the product attractiveness in the market. Practical application: This article presents practical approaches to analysing the energy consumption of counterbalanced lifts. The modelled results can be used to optimise the mass of the counterweight in order to achieve considerable energy savings in the actual or expected traffic profile.en
dc.description.versionPeer revieweden
dc.format.extent15
dc.format.extent421-435
dc.format.mimetypeapplication/pdf
dc.identifier.citationTukia , T , Uimonen , S , Siikonen , M-L , Hakala , H & Lehtonen , M 2017 , ' A study for improving the energy efficiency of lifts with adjustable counterweighting ' , BUILDING SERVICES ENGINEERING RESEARCH AND TECHNOLOGY , vol. 38 , no. 4 , pp. 421-435 . https://doi.org/10.1177/0143624417697773en
dc.identifier.doi10.1177/0143624417697773
dc.identifier.issn0143-6244
dc.identifier.otherPURE UUID: 3cb0b374-02ea-4773-9db0-04092fe1223a
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/3cb0b374-02ea-4773-9db0-04092fe1223a
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85020470917&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/30262523/ELEC_Tukiainen_etal_A_Study_for_Improving_BSERT_38_4_421.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/35001
dc.identifier.urnURN:NBN:fi:aalto-201812106016
dc.language.isoenen
dc.relation.ispartofseriesBUILDING SERVICES ENGINEERING RESEARCH AND TECHNOLOGYen
dc.relation.ispartofseriesVolume 38, issue 4en
dc.rightsopenAccessen
dc.subject.keywordcounterweight
dc.subject.keywordelevator
dc.subject.keywordenergy consumption
dc.subject.keywordenergy efficiency
dc.subject.keywordenergy savings
dc.subject.keywordinstantaneous power
dc.subject.keywordLift
dc.subject.keywordoffice building
dc.subject.keywordoptimisation
dc.subject.keywordtraffic profile
dc.titleA study for improving the energy efficiency of lifts with adjustable counterweightingen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionacceptedVersion
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