Conclusions
Experimental study has been carried out to investigate air flow
friction and heat transfer characteristics in a high aspect ratio channel
fitted with different rib turbulators for the turbulent regime, Reynolds
number of 4000 to 16,000. The use of the rib turbulators with e/H=0.3
Results and discussion
In the present work, experimental measurements of both heat
transfer and pressure loss in channels with different rib shapes are
presented. Measurements were conducted in a channel of aspect ratio,
AR=15 for two rib arrangements with each three-rib shape, over a
range of Reynolds numbers as mentioned earlier.