Optimization and thermal performance of evacuated tube solar collector with various nanofluids

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dc.contributor.authorYurddaş A.
dc.date.accessioned2024-07-22T08:07:41Z
dc.date.available2024-07-22T08:07:41Z
dc.date.issued2020
dc.description.abstractEvacuated tube solar collectors (ETSC) constitute an important place among water heating systems. The use of solar energy systems will reduce CO2 and SO2 emissions for green nature. In this context, geometric and technical values of the open-ended ETSC systems were optimized by considering different parameters. In the optimization study, the solar tube collector with vacuum tube which gives the most appropriate results was discussed and its effects on heat transfer according to the presence of different work fluids were investigated. For this study, a numerical study was carried out by applying the finite volume method, one of the computational fluid dynamics methods. We confirmed our numerical study with both experimental and numerical studies. In our study, water and water-based nano-fluids are used as heat transfer fluid in 24 heat tubes with 30º inclination and the related tank that connected to it. The water-based nano-fluids we used are water as the basic fluid and MWCNT, TiO2, SiO2 and Cu as the nanoparticles. We modeled nanofluids homogeneously by handling them for different volumetric ratios. The thermal and hydrodynamic conditions of the collector were investigated using the Boussinesq Approach and the tank exit temperatures were determined. As a result of this study, it was seen that the use of nano-fluids improved the heat transfer in the ETSCs and the best thermal recovery among the nano-fluids we used in our study was realized in Cu-Water nano-fluid. Improving the thermal performance of the ETSC is important for better energy conversion. For this reason, the effects of nano-fluid usage on thermal performance in solar energy systems of pollution-free energy are promising. © 2020
dc.identifier.DOI-ID10.1016/j.ijheatmasstransfer.2020.119496
dc.identifier.issn00179310
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14062
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectComputational fluid dynamics
dc.subjectElectron tubes
dc.subjectEnergy conversion
dc.subjectFinite volume method
dc.subjectFree energy
dc.subjectHeat transfer
dc.subjectNitrogen compounds
dc.subjectNumerical methods
dc.subjectSilica
dc.subjectSiO2 nanoparticles
dc.subjectSolar collectors
dc.subjectSolar concentrators
dc.subjectSolar energy
dc.subjectTanks (containers)
dc.subjectThermal pollution
dc.subjectTiO2 nanoparticles
dc.subjectTitanium dioxide
dc.subjectTubes (components)
dc.subjectTungsten compounds
dc.subjectBoussinesq approximations
dc.subjectComputational fluid dynamics methods
dc.subjectEtsc
dc.subjectEvacuated tube solar collector
dc.subjectExperimental and numerical studies
dc.subjectHydrodynamic conditions
dc.subjectNanofluids
dc.subjectThermal Performance
dc.subjectNanofluidics
dc.titleOptimization and thermal performance of evacuated tube solar collector with various nanofluids
dc.typeArticle

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