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IMPROVEMENT OF FREE CONVECTION HEAT TRANSFER FROM CYLINDERS INSIDE DUCT USING AIR WINGLET | ||
| AL-TAQANI | ||
| Article 1, Volume 22, Issue 3, 2009, Pages 0-0 | ||
| Abstract | ||
| It is a practical study that is experimental on horizontal cylinder which is put without a stream and in front of it; two plates are placed as directors for the trend of rising air according to the difference of intensity. As it is steady by the results, the existence of these plates makes the process of heat transition is increased more according to the orientation of air towards the sylinder and this is related to the increase in the heat exchange between the air and the cylinder that is heated by fixed heat inundation of a result to the control on the growth of the contiguous layer that is regarded as negative factor in the process of heat transition. And it has been reached that, approximately the best angle for the directors of air trend is (θ=45) and the best position is (y/d=1.5). | ||
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