Natural Convection Heat Transfer and Entropy Generation Analysis in Saltbox Roof under Summer Conditions

Simple item page
dc.contributor.authorOgwumike, T.E.
dc.contributor.authorOlakoyejo, O.T.
dc.contributor.authorOloruntoba, F.T.
dc.contributor.authorMusah, A.A.
dc.contributor.authorOyekeye, M.O.
dc.contributor.authorOluwatusin, O.
dc.contributor.authorOluwo, A.A.
dc.contributor.authorAdelaja, A.O.
dc.date.accessioned2022-09-07T07:55:52Z
dc.date.available2022-09-07T07:55:52Z
dc.date.issued2022
dc.descriptionScholarly articleen_US
dc.description.abstractThis study investigates numerically the 2D laminar natural convection in a Saltbox roof type geometry under summer climate conditions as obtained in Africa, particularly Nigeria using ANSYS FLUENT to model the boundary conditions. The effects of Rayleigh number (Ra) within the range of 103-107 and pitch angles (top and base) on heat transfer, the flow structure, temperature distribution and entropy generation within the geometry were analysed. Results show that the flow is nearly symmetric at lower Ra, while for higher Ra, the flow becomes asymmetric. The Nusselt number (Nu) has a proportional relationship with the top pitch angle and an inverse relationship with the base pitch angle when the Rayleigh number is fixed. The effect of the Ra on the Nu is insignificant at lower Ra, but becomes noticeable at higher Ra. The total entropy generation increases with an increase in top pitch angle and a decrease in base pitch angles, at fixed Rayleigh numbers. The physical implication is that, for a Saltbox roof type geometry, at fixed Ra, the best convective heat transfer process is achieved by lowering the base pitch angle and increasing the top pitch angle.en_US
dc.identifier.citationOgwumike T.E., Olakoyejo O.T., Oloruntoba F.T., Musah A.A., Oyekeye M.O., Oluwatusin O., Oluwo A.A. and Adelaja A.O. (2022): Natural Convection Heat Transfer and Entropy Generation Analysis in Saltbox Roof under Summer Conditions, FUOYE Journal of Engineering and Technology 7 (2) 205 – 209en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/11338
dc.language.isoenen_US
dc.publisherFUOYEJETen_US
dc.subjectEntropy generationen_US
dc.subjectNatural convectionen_US
dc.subjectNusselt numberen_US
dc.subjectPitch angleen_US
dc.subjectRayleigh numbers Minimumen_US
dc.subjectResearch Subject Categories::TECHNOLOGY::Engineering mechanicsen_US
dc.titleNatural Convection Heat Transfer and Entropy Generation Analysis in Saltbox Roof under Summer Conditionsen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2022. 8. Natural Convection Heat Transfer and Entropy Generation Analysis in Saltbox Roof.pdf
Size:
603.47 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Mechanical Engineering-Scholarly Publications