Fatih BayrakHakan Fehmi OztopA. HepbasliHepbasli, ArifOztop, Hakan F.Bayrak, Fatih2025-10-062013037877880378-77881872-617810.1016/j.enbuild.2012.10.0552-s2.0-84871808229https://www.scopus.com/inward/record.uri?eid=2-s2.0-84871808229&doi=10.1016%2Fj.enbuild.2012.10.055&partnerID=40&md5=1277b051130e264cc7c1eaa4e9b4573chttps://gcris.yasar.edu.tr/handle/123456789/10119https://doi.org/10.1016/j.enbuild.2012.10.055This study deals with performance assessment of porous baffles inserted solar air heaters (SAHs) using energy and exergy analysis methods. The porous baffles (PBs) with different thicknesses are used as passive element inside heaters. Closed-cell aluminum foams are chosen as porous materials with thicknesses of 6 mm and 10 mm and a total surface area of 50 cm2. They are placed sequentially and staggered manner onto the SAH. The measured parameters are the inlet and outlet temperatures the absorbing plate temperatures the ambient temperature and the solar radiation. These measurements are performed at two various air mass flow rates of 0.016 kg/s and 0.025 kg/s. Using the first and second laws of thermodynamics energy and exergy efficiencies of the SAHs are calculated and presented for different parameters. In the experiments five types of solar air heaters are tested and compared with each other in terms of their efficiencies. The obtained results showed that the highest collector efficiency and air temperature rise are achieved by SAHs with a thickness of 6 mm and an air mass flow rate of 0.025 kg/s whereas the lowest values are obtained for the SAH with non-baffle collectors and an air mass flow rate of 0.016 kg/s. © 2012 Elsevier B.V. All rights reserved. © 2013 Elsevier B.V. All rights reserved.Englishinfo:eu-repo/semantics/closedAccessBuilding, Exergy, Porous Material, Solar Air Heater, Solar Collector, Sustainability, Air Mass Flow Rate, Air Temperature, Building Applications, Closed-cell Aluminum Foam, Energy And Exergy Analysis, Energy And Exergy Efficiency, Measured Parameters, Outlet Temperature, Passive Elements, Performance Assessment, Plate Temperature, Second Laws Of Thermodynamics, Solar Air Heater, Total Surface Area, Buildings, Exergy, Flow Rate, Pipe Flow, Porous Materials, Solar Collectors, Solar Equipment, Sun, Sustainable Development, Thermodynamics, Solar HeatingAir mass flow rate, Air temperature, Building applications, Closed-cell aluminum foam, Energy and exergy analysis, Energy and exergy efficiency, Measured parameters, Outlet temperature, Passive elements, Performance assessment, Plate temperature, Second laws of thermodynamics, Solar air heater, Total surface area, Buildings, Exergy, Flow rate, Pipe flow, Porous materials, Solar collectors, Solar equipment, Sun, Sustainable development, Thermodynamics, Solar heatingPorous MaterialSolar Air HeaterSolar CollectorSustainabilityExergyBuildingArticle