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Experimental investigation of the effect of hot finnedtube position on the heat transfer coefficient | ||
| Journal of University of Babylon | ||
| Article 1, Volume 25, Issue 2, 2017, Pages 685-692 | ||
| Authors | ||
| Musa M. Wais; Murad S. Sedeeq; Ehsan F. Abbas | ||
| Abstract | ||
| In the present study, an experimental investigation is carried out to calculate heat transfer coefficient from the change in position of a finned tube in the cross-flow heat exchanger in two different conditions, which are a constant temperature at 90oC and constant heat flux at 45W/m2. A standard laboratory device (crossflow heat exchanger) was used in experiment process, that which manufactured by EDIBON company. The air flow over finned tubes inside heat exchanger was studied at Reynolds number ranging from 3600 to 11600. The comparative of experiments results between two cases shows that the Nu number in four positions at the constant temperature condition are higher than symmetrical positions in constant heat flux. The results indicated that the position3 gives higher values of Nu number in both cases | ||
| Keywords | ||
| Cross; flow heat exchanger; finned tube heat exchanger; Heat transfer coefficient | ||
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