Dynamic heat transfer modeling of a closed refrigerated display cabinet

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dc.contributor.authorChaomuang, Nattawut
dc.contributor.authorLaguerre, Onrawee
dc.contributor.authorFlick, Denis
dc.date.accessioned2026-08-06T10:25:58Z
dc.date.available2026-08-06T10:25:58Z
dc.date.issued2019-10-01
dc.description.abstractThis study proposes a simplified heat transfer model of a closed refrigerated display cabinet using a zonal approach. The dynamic model was developed and solved with a spectral method to predict the temperature fluctuations occurring with “on/off” compressor regulation. The equivalent load thickness in which the temperature fluctuations were of the same order as those at the load surface was estimated as a function of “on/off” compressor operating frequency. The air temperature fluctuations are dampened whenever the air exchanges heat with solid surfaces (e.g. walls, loads) and with the ambient air (e.g. through the doors). Despite exposure to large air temperature fluctuations (up to 5 °C), the load surface temperature showed only small fluctuations (ΔT<inf>l</inf> ≤ 0.5 °C). Good agreement was found between the predicted and the measured temperature fluctuations. The model can also be applied in order to predict air and load temperature increases during defrost operation.
dc.identifier.citationApplied Thermal Engineering, 161, 2019
dc.identifier.doi10.1016/j.applthermaleng.2019.114138
dc.identifier.issn13594311
dc.identifier.other2-s2.0-85069714720
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/10249
dc.sourceApplied Thermal Engineering
dc.subjectClosed refrigerated display cabinet
dc.subjectHeat transfer
dc.subjectSimplified model
dc.subjectSpectral approach
dc.subjectTemperature fluctuation
dc.titleDynamic heat transfer modeling of a closed refrigerated display cabinet
dc.typeArticle

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