Daytime radiative cooling: To what extent it enhances office cooling system performance in comparison to night cooling in semi-arid climate?

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dc.contributor.authorKatramiz, Elvire
dc.contributor.authorGhaddar, Nesreen K.
dc.contributor.authorGhali, Kamel Abou
dc.contributor.departmentDepartment of Mechanical Engineering
dc.contributor.facultyMaroun Semaan Faculty of Engineering and Architecture (MSFEA)
dc.contributor.institutionAmerican University of Beirut
dc.date.accessioned2025-01-24T11:32:45Z
dc.date.available2025-01-24T11:32:45Z
dc.date.issued2020
dc.description.abstractThis work investigates the performance of a novel passive cooling system for an office space in hot and dry climate. A daytime radiative cooling (RC) panel was coupled with a phase change material (PCM) storage tank system where the nocturnal radiative cooling power was used to regenerate the PCM during nighttime and the diurnal power during daytime was used to reduce the window temperature. To predict system operation, a mathematical model was developed integrating the hydronic RC panel model, water/PCM system heat exchange model, and ventilated window and space model. The developed model was applied to a case study in Beqaa area of inland Lebanon. It was found that the use of diurnal RC panel power for window cooling reduced the storage system size by 12.3% in comparison to the case where only night RC panel was used. The window cooling reduced the radiation asymmetry in the office and resulted in cost savings of 10% when operated during the summer. © 2019 Elsevier Ltd
dc.identifier.doihttps://doi.org/10.1016/j.jobe.2019.101020
dc.identifier.eid2-s2.0-85074161415
dc.identifier.urihttp://hdl.handle.net/10938/27867
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofJournal of Building Engineering
dc.sourceScopus
dc.subjectPassive cooling system
dc.subjectPhase change material storage tank
dc.subjectRadiative cooling
dc.subjectVentilated double layer window
dc.subjectCooling systems
dc.subjectOffice buildings
dc.subjectPhase change materials
dc.subjectStorage (materials)
dc.subjectTanks (containers)
dc.subjectThermoelectric equipment
dc.subjectDeveloped model
dc.subjectDouble layers
dc.subjectPassive cooling
dc.subjectPhase change material storages
dc.subjectRadiation asymmetry
dc.subjectSemi-arid climate
dc.subjectStorage systems
dc.subjectSystem operation
dc.titleDaytime radiative cooling: To what extent it enhances office cooling system performance in comparison to night cooling in semi-arid climate?
dc.typeArticle

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