Heat transfer and flowfriction behaviors in a channel with multiple 30° V-ribs
| dc.contributor.author | Khanoknaiyakarn, C. | |
| dc.contributor.author | Jedsadaratanachai, W. | |
| dc.contributor.author | Promvonge, P. | |
| dc.date.accessioned | 2026-08-06T10:08:47Z | |
| dc.date.available | 2026-08-06T10:08:47Z | |
| dc.date.issued | 2014-01-01 | |
| dc.description.abstract | The paper presents an experimental study on heat transfer and flow friction characteristics in a rectangular channel fitted with periodically rectangular V-ribs. The multiple V-rib turbulators are tested in the channel having an aspect ratio (width to height ratio), AR=10 and height, H= 30 mm, with three rib-to-channel height ratios (e/H=0.2, 0.3, and 0.4), two rib-pitch to channel-height ratios (PR=P<inf>1</inf>/H= 3 and 4) and a single attack angle (α=30°). The upper plate of channel is uniformly heated at a constant heat-flux. The experiment has been conducted by varying airflow velocity in order to obtain the Reynolds number range from 5000 to 24,000. The experimental results show a significant effect of the presence of the ribs on the heat transfer rate and pressure drop over the smooth channel. The measured data indicates that the V-rib turbulators with e/H = 0.4 and PR =3 yields the highest heat transfer rate and friction loss. All the V-rib turbulators perform much higher than the smooth channel with no rib. © 2014 Asian Institute of Technology. | |
| dc.identifier.citation | Proceedings of the 2014 International Conference and Utility Exhibition on Green Energy for Sustainable Development Icue 2014, 2014 | |
| dc.identifier.other | 2-s2.0-84903717049 | |
| dc.identifier.uri | https://dspace.kmitl.ac.th/handle/123456789/5477 | |
| dc.source | Proceedings of the 2014 International Conference and Utility Exhibition on Green Energy for Sustainable Development Icue 2014 | |
| dc.subject | Aspect ratio | |
| dc.subject | Behaviors | |
| dc.subject | Friction | |
| dc.subject | Heat transfer | |
| dc.subject | V-rib turbulators | |
| dc.title | Heat transfer and flowfriction behaviors in a channel with multiple 30° V-ribs | |
| dc.type | Conference Paper |