Dynamic heating control measured and simulated effects on power reduction, energy and indoor air temperature in an old apartment building with district heating

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHajian, Hatefen_US
dc.contributor.authorAhmed, Kaiseren_US
dc.contributor.authorKurnitski, Jareken_US
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.groupauthorStructures – Structural Engineering, Mechanics and Computationen
dc.date.accessioned2022-08-10T08:12:55Z
dc.date.available2022-08-10T08:12:55Z
dc.date.issued2022-08-01en_US
dc.description| openaire: EC/H2020/856602/EU//FINEST TWINS
dc.description.abstractThis study investigated the effects of the dynamic heating control on power reduction and indoor air temperature in a typical Finnish block of apartments built in 1981. The building operated in 2018 with conventional and in 2020 with dynamic heating control. The onsite measured data was collected from both periods. Measured data enabled calibrating the whole building simulation models with an accuracy better than 10%. A new dynamic heating curve control algorithm was developed so that outdoor air compensated supply temperature was reduced during high use of Domestic Hot Water (DHW) by applying DHW compensation differential. If the indoor air temperature in any apartment dropped below the limit, supply temperature uplift was applied. The dynamic heating control resulted in 8.9% space heating and 13.7% total heating power reduction while had practically no effect on energy use. On the contrary, dynamic heating control slightly increased indoor temperature fluctuations, but both control systems resulted in a similar value of hours below the setpoint temperature of 21 degrees C. The results demonstrate that heating power reduction without compromising indoor air temperature is possible with applied supply temperature drop during DHW peaks and preheating afterwards. (c) 2022 Published by Elsevier B.V.en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationHajian, H, Ahmed, K & Kurnitski, J 2022, ' Dynamic heating control measured and simulated effects on power reduction, energy and indoor air temperature in an old apartment building with district heating ', Energy and Buildings, vol. 268, 112174 . https://doi.org/10.1016/j.enbuild.2022.112174en
dc.identifier.doi10.1016/j.enbuild.2022.112174en_US
dc.identifier.issn0378-7788
dc.identifier.issn1872-6178
dc.identifier.otherPURE UUID: 005c8374-e0ab-4cd6-8b67-8e3878582328en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/005c8374-e0ab-4cd6-8b67-8e3878582328en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85134039285&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/85936234/Dynamic_heating_control_measured_and_simulated_effects_on_power_reduction_energy_and_indoor_air_temperature_in_an_old_apartment_building_with_district_heating.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/115650
dc.identifier.urnURN:NBN:fi:aalto-202208104472
dc.language.isoenen
dc.publisherElsevier Science
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/856602/EU//FINEST TWINSen_US
dc.relation.ispartofseriesEnergy and Buildingsen
dc.relation.ispartofseriesVolume 268en
dc.rightsopenAccessen
dc.subject.keywordSpace heatingen_US
dc.subject.keywordHeating poweren_US
dc.subject.keywordPower reductionen_US
dc.subject.keywordHeating curveen_US
dc.subject.keywordDynamic controlen_US
dc.subject.keywordCentral heatingen_US
dc.titleDynamic heating control measured and simulated effects on power reduction, energy and indoor air temperature in an old apartment building with district heatingen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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