An experimental comparison of radiant wall and ceiling cooling system integrated with ground source heat pump and direct expansion fan coil system in a highly glazed office room

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dc.authorscopusid57833380700
dc.authorscopusid55645106500
dc.authorscopusid36837521200
dc.authorscopusid57858448600
dc.contributor.authorDoğan, Ahmet
dc.contributor.authorKayacı, Nurullah
dc.contributor.authorDemir, Hahan
dc.contributor.authorKemal Sevindir, M.
dc.date.accessioned2023-04-20T08:05:56Z
dc.date.available2023-04-20T08:05:56Z
dc.date.issued2022
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, Makine Mühendisliği Bölümü
dc.description.abstractHydronic radiant systems, which provide a thermal comfort environment, come to the fore in different building applications due to their energy saving potential and being integrated with renewable energy systems. The aim of this study is to present a full-scale experiment to compare the thermal comfort performances of radiant ceiling, wall and wall + ceiling systems coupled ground source heat pump and direct expansion fan coil system implemented in Yildiz Technical University Science and Technology Application and Research Center, Istanbul, Turkey. Air velocity, horizontal and vertical air temperature differences, mean radiant temperature and humidity values, which are four physical parameters that can affect the thermal satisfaction of office workers for 9 different experimental conditions, are measured for fan coil and all radiant systems. The results indicate that vertical temperature differences between ankle and head level vary from 0.9 °C to 1.4 °C for both fan coil system and all radiant system configurations in different location of the test room. Acceptable overall comfort in indoor environments Class A only showed stable performance with an average of 0.12 PMV and 5.3 % PPD when ceiling + wall radiant panels were actively cooled. The result shows that the difference between room air temperature and room operating temperature varies between 0.45 °C and 0.6 °C when cooling loads are met by radiant systems. This may not make it possible to use indoor air temperature instead of indoor operating temperature in the control of radiant systems. Moreover, the thermal environment of the radiant system are more uniform than fan coil system due to low air temperature stratification, air velocity and small differences between mean radiant temperature and indoor air temperature. © 2022 Elsevier B.V.
dc.description.sponsorshipYildiz Teknik Üniversitesi: FBA-2019-3703
dc.description.sponsorshipThis study was supported by Yildiz Technical University under BAP program with GRANT No. FBA-2019-3703. We would like to thank to the Yildiz Technical University for their financial support during this work. The authors would like to acknowledge that this paper is submitted in partial fulfilment of the requirements for PhD degree at Yildiz Technical University.
dc.identifier.doi10.1016/j.enbuild.2022.112412
dc.identifier.issn0378-7788
dc.identifier.scopus2-s2.0-85136561985
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.enbuild.2022.112412
dc.identifier.urihttps://hdl.handle.net/20.500.11776/11111
dc.identifier.volume273
dc.indekslendigikaynakScopus
dc.institutionauthorKayacı, Nurullah
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofEnergy and Buildings
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectFan coil
dc.subjectGround source heat pump (GSHP)
dc.subjectRadiant cooling
dc.subjectRadiant walls and ceiling
dc.subjectThermal comfort
dc.subjectAir
dc.subjectAir conditioning
dc.subjectAtmospheric temperature
dc.subjectCeilings
dc.subjectCooling
dc.subjectCooling systems
dc.subjectEnergy conservation
dc.subjectExpansion
dc.subjectGeothermal heat pumps
dc.subjectOffice buildings
dc.subjectPumps
dc.subjectRenewable energy resources
dc.subjectThermoelectric equipment
dc.subjectWalls (structural partitions)
dc.subjectAir temperature
dc.subjectCoil systems
dc.subjectDirect expansion
dc.subjectExpansion fans
dc.subjectFan coil
dc.subjectGround source heat pump
dc.subjectGroundsource heat pump (GSHP)
dc.subjectRadiant cooling
dc.subjectRadiant systems
dc.subjectRadiant wall and ceiling
dc.subjectThermal comfort
dc.titleAn experimental comparison of radiant wall and ceiling cooling system integrated with ground source heat pump and direct expansion fan coil system in a highly glazed office room
dc.typeArticle

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