Khetib, YacineAlzaed, AliTahmasebi, AhamdSharifpur, MohsenCheraghian, Goshtasp2023-09-062022-06Khetib, Y., Alzaed, A., Tahmasebi, A. et al. 2022, 'Influence of using innovative turbulators on the exergy and energy efficacy of flat plate solar collector with DWCNTs-TiO2/water nanofluid', Sustainable Energy Technologies and Assessments, vol. 51, art. 101855, pp. 1-12, doi : 10.1016/j.seta.2021.101855.2213-138810.1016/j.seta.2021.101855http://hdl.handle.net/2263/92221This study investigates the effect of using turbulators with innovative geometrie (TIG) and DWCNTs-TiO2/water hybrid nanofluid (HNF) on thermal–hydraulic performance, exergy and energy efficacies of flat plate solar collector (FPSC) using a mixed two-phase model (TPM). Finite volume technique (FVT), SIMLPLEC algorithm and FLUENT software are used. The numerical study is performed for nano-additives concentrations (ϕ) of 1 to 3%, Reynolds numbers (Re) from 7000 to 28000, and PR of 1, 2, 3, and 4 of the proposed TIG in turbulent flow regime. The results show that the average Nusselt number (Nuave) increases by augmenting the Re and ϕ. In addition, at Re = 28,000 and ϕ = 3%, the installation of TIG with PR = 4 within the solar collector (SC) increases the Nuave by 63.46%. In the case of ϕ = 3% and by augmenting the Re from 7000 to 28000, energy and exergy efficacies increase by 22.19% and 23.26% for PR = 4 and PR = 1, respectively.en© 2021 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Sustainable Energy Technologies and Assessments. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Sustainable Energy Technologies and Assessments, vol. 51, art. 101855, pp. 1-12, 2022, doi : 10.1016/j.seta.2021.101855.Turbulators with innovative geometrie (TIG)Hybrid nanofluid (HNF)Flat plate solar collector (FPSC)Innovative turbulatorExergy efficiencyEnergy efficiencyTwo-phase flowEngineering, built environment and information technology articles SDG-04SDG-04: Quality educationEngineering, built environment and information technology articles SDG-07SDG-07: Affordable and clean energyEngineering, built environment and information technology articles SDG-09SDG-09: Industry, innovation and infrastructureEngineering, built environment and information technology articles SDG-12SDG-12: Responsible consumption and productionEngineering, built environment and information technology articles SDG-13SDG-13: Climate actionPostprint Article