Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins
This article discusses the possibility of further reducing the mass of the heat exchanger with stainless steel star-shaped fins while achieving good heat transfer performance. For this purpose, we perforated the fins with holes Ø2, Ø3, and Ø4 mm. Applying computational fluid dynamics (CFD) numerical...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Fluids |
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| Online Access: | https://www.mdpi.com/2311-5521/5/4/242 |
| _version_ | 1797544796394356736 |
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| author | Mladen Bošnjaković Simon Muhič |
| author_facet | Mladen Bošnjaković Simon Muhič |
| author_sort | Mladen Bošnjaković |
| collection | DOAJ |
| description | This article discusses the possibility of further reducing the mass of the heat exchanger with stainless steel star-shaped fins while achieving good heat transfer performance. For this purpose, we perforated the fins with holes Ø2, Ø3, and Ø4 mm. Applying computational fluid dynamics (CFD) numerical analysis, we determined the influence of each perforation on the characteristics of the flow field in the liquid–gas type of heat exchanger and the heat transfer for the range of <i>Re</i> numbers from 2300 to 16,000. With a reduction in the mass of the fins to 17.65% (by Ø4 mm), perforated fins had greater heat transfer from 5.5% to 11.3% than fins without perforation. A comparison of perforated star-shaped fins with annular fins was also performed. Perforated fins had 51.8% less mass than annular fins, with an increase in heat transfer up to 26.5% in terms of Nusselt number. |
| first_indexed | 2024-03-10T14:06:34Z |
| format | Article |
| id | doaj.art-13517b9cdfc649eb915359e707207bd7 |
| institution | Directory Open Access Journal |
| issn | 2311-5521 |
| language | English |
| last_indexed | 2024-03-10T14:06:34Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj.art-13517b9cdfc649eb915359e707207bd72023-11-21T00:36:45ZengMDPI AGFluids2311-55212020-12-015424210.3390/fluids5040242Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped FinsMladen Bošnjaković0Simon Muhič1Technical Department, University of Slavonski Brod, Trg Stjepana Miletića 12, 35000 Slavonski Brod, CroatiaFaculty of Mechanical Engineering, University of Novo mesto, Na Loko 2, 8000 Novo Mesto, SloveniaThis article discusses the possibility of further reducing the mass of the heat exchanger with stainless steel star-shaped fins while achieving good heat transfer performance. For this purpose, we perforated the fins with holes Ø2, Ø3, and Ø4 mm. Applying computational fluid dynamics (CFD) numerical analysis, we determined the influence of each perforation on the characteristics of the flow field in the liquid–gas type of heat exchanger and the heat transfer for the range of <i>Re</i> numbers from 2300 to 16,000. With a reduction in the mass of the fins to 17.65% (by Ø4 mm), perforated fins had greater heat transfer from 5.5% to 11.3% than fins without perforation. A comparison of perforated star-shaped fins with annular fins was also performed. Perforated fins had 51.8% less mass than annular fins, with an increase in heat transfer up to 26.5% in terms of Nusselt number.https://www.mdpi.com/2311-5521/5/4/242star-shaped finperforationheat exchangerextended surfaces |
| spellingShingle | Mladen Bošnjaković Simon Muhič Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins Fluids star-shaped fin perforation heat exchanger extended surfaces |
| title | Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins |
| title_full | Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins |
| title_fullStr | Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins |
| title_full_unstemmed | Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins |
| title_short | Numerical Analysis of Tube Heat Exchanger with Perforated Star-Shaped Fins |
| title_sort | numerical analysis of tube heat exchanger with perforated star shaped fins |
| topic | star-shaped fin perforation heat exchanger extended surfaces |
| url | https://www.mdpi.com/2311-5521/5/4/242 |
| work_keys_str_mv | AT mladenbosnjakovic numericalanalysisoftubeheatexchangerwithperforatedstarshapedfins AT simonmuhic numericalanalysisoftubeheatexchangerwithperforatedstarshapedfins |