Augmented heat transfer in rectangular duct with angled Z-shaped ribs

Simple item page
dc.contributor.authorPimsarn, Monsak
dc.contributor.authorSriromreun, Parkpoom
dc.contributor.authorPromvonge, Pongjet
dc.date.accessioned2026-08-06T09:59:36Z
dc.date.available2026-08-06T09:59:36Z
dc.date.issued2010-01-01
dc.description.abstractAn experiment is focused on the design of the suitable ribs used for enhancing heat transfer in a rectangular duct heat exchanger by using wall heat transfer (Nusselt number), friction loss (friction factor) and thermal performance (thermal enhancement factor) data. The Z-shaped ribs were set on the rectangular duct at 30°, 45° and 60° and flat rib was set at 90° relative to the air flow direction. Reynolds numbers studied ranging from 5000 to 25,000 in the test section. The rectangular duct has aspect ratio, AR = 10 and height, H = 30 mm with the Z-rib height (e), e/H = 0.2 and the rib pitch (P), P/H = 3. The ribs were fitted in Z-shape (Z-rib) aligned in series on the whole area of the upper plate. The results of the Z-ribs show the significant increase in heat transfer rate and friction loss over the smooth channel. The 45° Z-rib provides the highest increase in the heat transfer rate and the best thermal performance.
dc.identifier.citationProceedings of the International Conference on Energy and Sustainable Development Issues and Strategies Esd 2010, 2010
dc.identifier.doi10.1109/esd.2010.5598858
dc.identifier.other2-s2.0-78649568645
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/2880
dc.sourceProceedings of the International Conference on Energy and Sustainable Development Issues and Strategies Esd 2010
dc.subjectAngle rib
dc.subjectChannel flow
dc.subjectEnhanced heat transfer
dc.subjectNusselt number
dc.subjectRib
dc.titleAugmented heat transfer in rectangular duct with angled Z-shaped ribs
dc.typeConference Paper

Files

Collections

Research