Heat and fluid flow analysis of solar air heater duct roughened with saw-tooth shaped transverse rib

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dc.contributor.advisorSukhmeet Singh
dc.contributor.authorAmritpal Singh
dc.date.accessioned2017-04-27T07:00:30Z
dc.date.available2017-04-27T07:00:30Z
dc.date.issued2017
dc.description.abstractIn this investigation, the Nusselt number and friction factor characteristics have been numerically studied for solar air heater duct roughened artificially with non-uniform crosssection saw tooth rib. The investigation has been carried in 3-D using software ANSYS Academic Research CFD. The parameters, relative roughness pitch, angle of saw-tooth rib, relative roughness height and Reynolds number were varied from 4 to 30, 15° to 75°, 0.015 to 0.043 and 3000 to 15000 respectively . The turbulence model renormalization group (RNG) k-ε was selected for analysis of roughened duct. Both, the Nusselt number and friction factor have been found to be maximum at relative roughness pitch of 16, relative roughness height of 0.043 and angle of saw-tooth of 45° and Reynolds number of 15000. The results have been explained using contours of turbulent kinetic energy, turbulent dissipation rate, static temperature and static pressure have also been plotted. Thermo-hydraulic performance was found best at Reynolds number of 9000, relative roughness height of 0.043 and angle of sawtooth of 45°.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810010186
dc.keywordsSaw-tooth rib, Heat transfer, Reynolds number, Turbulence models, Turbulent kinetic energy, Static temperatureen_US
dc.language.isoenen_US
dc.pages73en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemsolar air heater ducten_US
dc.subAgricultural Engineeringen_US
dc.subjectnullen_US
dc.themeHeat and fluid flow analysis of solar air heater duct roughened with saw-tooth shaped transverse riben_US
dc.these.typeM.Scen_US
dc.titleHeat and fluid flow analysis of solar air heater duct roughened with saw-tooth shaped transverse riben_US
dc.typeThesisen_US
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