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Heat Transfer Coefficient Enhancement in Natural Convection from Horizontal Rectangular Fin Arrays with Perforations
| Content Provider | Semantic Scholar |
|---|---|
| Author | Salunke, N. P. |
| Copyright Year | 2019 |
| Abstract | The overall convection heat transfer coefficients for long horizontal rectangular fin arrays are low because the surfaces in the inner region are poorly ventilated. In this study, perforations through the fin base are introduced to improve ventilation with cold air from below the fin base. Aluminum fin arrays with length L= 380mm, fin height H = 38mm, fin thickness tf = 1mm, and fin spacing S = 10mm are analyzed experimentally and numerically using ANSYS 14.0 so as to obtain the temperature distribution along the fin height and fin length. In this work the fin array configurations are tested experimentally with two different heater input as 50W and 65W. The heat transfer coefficient for fin array with perforations in fin base increased by the enhancement factor of 1.49 and 1.42 as compared to fin array without perforation with 50W and 65W heater input respectively. The heat transfer coefficient for the same fin configuration is also increased with increase in heater input from 50W to 65W. Experimental and numerical results for the temperature distribution show a difference of 5-9%. The distribution of heat flux obtained with ANSYS 14.0 quantitatively follows the trend of the same reported in the literature review. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.iaeme.com/MasterAdmin/Journal_uploads/IJMET/VOLUME_10_ISSUE_1/IJMET_10_01_031.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
