Utilization of an Air-PCM Heat Exchanger in Passive Cooling of Buildings: A Simulation Study on the Energy Saving Potential in Different European Climates

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dc.contributor.authorCharvát, Pavelcs
dc.contributor.authorKlimeš, Lubomírcs
dc.contributor.authorZálešák, Martincs
dc.coverage.issue6cs
dc.coverage.volume12cs
dc.date.accessioned2020-08-04T11:02:29Z
dc.date.available2020-08-04T11:02:29Z
dc.date.issued2019-03-22cs
dc.description.abstractThe energy saving potential (ESP) of passive cooling of buildings with the use of an air-PCM heat exchanger (cold storage unit) was investigated through numerical simulations. One of the goals of the study was to identify the phase change temperature of a PCM that would provide the highest energy saving potential under the specific climate and operating conditions. The considered air-PCM heat exchanger contained 100 aluminum panels filled with a PCM. The PCM had a thermal storage capacity of 200 kJ/kg in the phase change temperature range of 4 °C. The air-PCM heat exchanger was used to cool down the outdoor air supplied to a building during the day, and the heat accumulated in the PCM was rejected to the outdoors at night. The simulations were conducted for 16 locations in Europe with the investigated time period from 1 May–30 September. The outdoor temperature set point of 20 °C was used for the utilization of stored cold. In the case of the location with the highest ESP, the scenarios with the temperature set point and without the set point (which provides maximum theoretical ESP) were compared under various air flow rates. The average utilization rate of the heat of fusion did not exceed 50% in any of the investigated scenarios.en
dc.formattextcs
dc.format.extent1-17cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationENERGIES. 2019, vol. 12, issue 6, p. 1-17.en
dc.identifier.doi10.3390/en12061133cs
dc.identifier.issn1996-1073cs
dc.identifier.other156349cs
dc.identifier.urihttp://hdl.handle.net/11012/179566
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofENERGIEScs
dc.relation.urihttps://www.mdpi.com/1996-1073/12/6/1133cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1073/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectenergy conservationen
dc.subjectlatent heat thermal energy storageen
dc.subjectphase change materialsen
dc.subjectpassive coolingen
dc.titleUtilization of an Air-PCM Heat Exchanger in Passive Cooling of Buildings: A Simulation Study on the Energy Saving Potential in Different European Climatesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-156349en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:02:29en
sync.item.modts2020.08.04 12:15:20en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Energetický ústavcs
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