Energy and exergy analysis of a vertical solar air heater with nano-enhanced absorber coating and perforated baffles

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dc.authoridTuncer, Azim Dogus/0000-0002-8098-6417
dc.contributor.authorKhanlari, Ataollah
dc.contributor.authorTuncer, Azim Dogus
dc.contributor.authorSozen, Adnan
dc.contributor.authorAytac, Ipek
dc.contributor.authorCiftci, Erdem
dc.contributor.authorVariyenli, Halil Ibrahim
dc.date.accessioned2025-03-17T12:25:57Z
dc.date.available2025-03-17T12:25:57Z
dc.date.issued2022
dc.departmentTarsus Üniversitesi
dc.description.abstractIn this work, the effect of applying nano-enhanced absorber coating on the energetic and exergetic performance of an unglazed vertical solar air heating system has been analyzed numerically and experimentally. In the first step of the research, various configurations of vertical solar air heaters including hollow, baffled and perforated baffled systems have been surveyed by using computational fluid dynamics. According to the numerically obtained findings, the system with perforated baffles gave the best performance metrics. In this regard, two heating systems with perforated baffles have been manufactured. One of the system was painted with a regular matt black paint while CuO nano-embedded black paint applied to the other solar heater. Fabricated heaters have been experimentally surveyed at three different flow rates. Thermal efficiency values for the heaters with and without nanoparticles were found between 58.10-76.22% and 54.96-72.05%, respectively. Applying nano-embedded coating increased the exergy efficiency in the range of 9.25-10.58%. In addition, maximum deviation of numerically and experimentally attained outlet temperature values was calculated as 4.74%. Moreover, general findings of this research showed the successful utilization of nano-enhanced absorber coating. (C) 2022 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipDANIDA Fellowship Centre; Ministry of Foreign Affairs of Denmark [18-M06-AAU]
dc.description.sponsorshipThis research is part of the HeatReFlex-Green and Flexible District Heating/Cooling project (www.heatreflex.et.aau.dk) funded by DANIDA Fellowship Centre and the Ministry of Foreign Affairs of Denmark to conduct research in growth and transition countries under the grant no. 18-M06-AAU.
dc.identifier.doi10.1016/j.renene.2022.01.074
dc.identifier.endpage602
dc.identifier.issn0960-1481
dc.identifier.issn1879-0682
dc.identifier.scopus2-s2.0-85124042239
dc.identifier.scopusqualityQ1
dc.identifier.startpage586
dc.identifier.urihttps://doi.org/10.1016/j.renene.2022.01.074
dc.identifier.urihttps://hdl.handle.net/20.500.13099/1960
dc.identifier.volume187
dc.identifier.wosWOS:000813713200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofRenewable Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectVertical
dc.subjectSolar air heater
dc.subjectCuO
dc.subjectNanoparticles
dc.subjectBlack paint
dc.subjectEnergy-exergy
dc.titleEnergy and exergy analysis of a vertical solar air heater with nano-enhanced absorber coating and perforated baffles
dc.typeArticle

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