Parametric study of solar air heater with different rib geometries

Thakur, D.S.; Khan, M.K.; Pathak, M.

dc.contributor.author	Thakur, D.S.	en
dc.contributor.author	Khan, M.K.	en
dc.contributor.author	Pathak, M.	en
dc.date.accessioned	2017-08-28T07:07:52Z
dc.date.available	2017-08-28T07:07:52Z
dc.date.issued	2016	en
dc.description	papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.	en
dc.description.abstract	In the present work, A 2D CFD simulation using ANSYS FLUENT 15.0 have been performed to investigate the performance of flat plate solar air heaters with different rib geometries (artificial roughness) such as semi-circular, circular, rectangular and triangular (wedge) and hyperbolic rib with flat tip. In fact, the hyperbolic rib profile is the novelty in this work. The CFD model of smooth duct is validated with the Dittus- Boelter Nusselt number correlation and the Blasius equation for heat transfer and frictional pressure drop respectively. RNG kɛ model is used for turbulent modelling. The proposed hyperbolic rib profile gives best performance at low Re whereas rectangular profile is found to be best at high Re.	en
dc.format.extent	6 pages	en
dc.format.medium	PDF	en
dc.identifier.uri	http://hdl.handle.net/2263/61922
dc.language.iso	en	en
dc.publisher	HEFAT	en
dc.rights	University of Pretoria	en
dc.subject	Solar air heater	en
dc.subject	Rib geometries	en
dc.subject	Parametric study	en
dc.title	Parametric study of solar air heater with different rib geometries	en
dc.type	Presentation	en