Numerical investigation of fluid flow and heat characteristics of a roughened solar air heater with novel v-shaped ribs

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dc.contributor.authorAllauddin, Usman
dc.contributor.authorKhan, Waqar
dc.contributor.authorAli, Saim E.
dc.contributor.authorHaider, Syed Muhammad Mehdi
dc.contributor.authorAhmed, Abdul S.
dc.contributor.authorRehman, Abdur
dc.contributor.authorVerdin, Patrick G.
dc.date.accessioned2022-04-04T08:39:02Z
dc.date.available2022-04-04T08:39:02Z
dc.date.issued2022-03-24
dc.description.abstractSolar air heaters convert clean solar energy into useful heat and have a wide range of applications. Computational Fluid Dynamics (CFD) can aid in the design and development of solar air heaters with optimized thermal efficiency. A detailed numerical study was conducted to investigate the fluid flow and heat transfer characteristics of a roughened solar air heater with novel V-shaped ribs having staggered elements. Three dimensional steady-state numerical simulations were performed using the k– RNG turbulence model, and results were found in excellent agreement with experimental data. The effect of ribs spacing were studied through varying the rib pitch to rib height ratio P/e= 6 to 14, for Reynolds numbers (Re) in the range of 4000-14,000. A significant enhancement in the ribs-roughened solar air heater’s thermal performance was observed. It was also established that an increment in P/e from 6 to 10 increases the Nusselt number (Nu) for all Re values investigated. About 72.6% Nu enhancement was predicted for P/e=10 at Re = 12,000. It was further observed that an increment in p/e from 10 to 14 decreases Nu for all Re values considered.en_UK
dc.identifier.citationAllauddin U, Khan W, Ali SE, et al., (2022) Numerical investigation of fluid flow and heat characteristics of a roughened solar air heater with novel v-shaped ribs. Transactions of the Canadian Society for Mechanical Engineering, Volume 46, Number 3, September 2022, pp. 561–572en_UK
dc.identifier.issn0315-8977
dc.identifier.urihttps://doi.org/10.1139/tcsme-2021-0205
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/17731
dc.language.isoenen_UK
dc.publisherCanadian Science Publishingen_UK
dc.subjectSolar air heateren_UK
dc.subjectheat transfer enhancementen_UK
dc.subjectsurface enlargement elementsen_UK
dc.subjectribsen_UK
dc.subjectNusselt numberen_UK
dc.titleNumerical investigation of fluid flow and heat characteristics of a roughened solar air heater with novel v-shaped ribsen_UK
dc.typeArticleen_UK

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