Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts
Within the realm of industrial energy conservation, the optimization of heat exchanger performance is paramount for the augmentation of energy utilization efficiency. This investigation employs computational fluid dynamics (CFD) simulations to elucidate the effects of an innovative DNA-Inspired Slot...
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| Format: | Article |
| Language: | English |
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2025-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/2/376 |
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| author | Penglong Zhu Guoxiu Sun Ruimeng Liu Sicong Zhou Baisong Hu Shaofeng Zhang |
| author_facet | Penglong Zhu Guoxiu Sun Ruimeng Liu Sicong Zhou Baisong Hu Shaofeng Zhang |
| author_sort | Penglong Zhu |
| collection | DOAJ |
| description | Within the realm of industrial energy conservation, the optimization of heat exchanger performance is paramount for the augmentation of energy utilization efficiency. This investigation employs computational fluid dynamics (CFD) simulations to elucidate the effects of an innovative DNA-Inspired Slotted Insert (DSI) on the convective heat transfer and pressure drop characteristics within heat exchange tubes. The study provides a thorough analysis of fully turbulent flow (Re = 6600–17,200), examining the effects of various DSI pitches, key lengths, and geometries. The findings reveal that the DSI instigates a three-dimensional spiral flow pattern, which is accompanied by an escalation in the Nusselt number (Nu) and friction factor (f) with increasing Reynolds numbers. An inverse relationship between Nu and both pitch and key length is observed; conversely, f exhibits a direct correlation with these parameters. The study identifies an optimal configuration characterized by a pitch of 10 mm and a key length of 1.5 mm, with square keys demonstrating superior heat transfer performance relative to other geometrical configurations. This research contributes significant design and application insights for double-helical inserts, which are pivotal for the enhancement of heat exchanger efficiency. |
| format | Article |
| id | doaj-art-97e104245afc4771af9094a9fafeb3f5 |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-97e104245afc4771af9094a9fafeb3f52025-01-24T13:31:15ZengMDPI AGEnergies1996-10732025-01-0118237610.3390/en18020376Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted InsertsPenglong Zhu0Guoxiu Sun1Ruimeng Liu2Sicong Zhou3Baisong Hu4Shaofeng Zhang5School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, ChinaHebei Zetian Chemical Co., Ltd., Hengshui 053000, ChinaSchool of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, ChinaSchool of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, ChinaSchool of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, ChinaSchool of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, ChinaWithin the realm of industrial energy conservation, the optimization of heat exchanger performance is paramount for the augmentation of energy utilization efficiency. This investigation employs computational fluid dynamics (CFD) simulations to elucidate the effects of an innovative DNA-Inspired Slotted Insert (DSI) on the convective heat transfer and pressure drop characteristics within heat exchange tubes. The study provides a thorough analysis of fully turbulent flow (Re = 6600–17,200), examining the effects of various DSI pitches, key lengths, and geometries. The findings reveal that the DSI instigates a three-dimensional spiral flow pattern, which is accompanied by an escalation in the Nusselt number (Nu) and friction factor (f) with increasing Reynolds numbers. An inverse relationship between Nu and both pitch and key length is observed; conversely, f exhibits a direct correlation with these parameters. The study identifies an optimal configuration characterized by a pitch of 10 mm and a key length of 1.5 mm, with square keys demonstrating superior heat transfer performance relative to other geometrical configurations. This research contributes significant design and application insights for double-helical inserts, which are pivotal for the enhancement of heat exchanger efficiency.https://www.mdpi.com/1996-1073/18/2/376numerical investigationheat transfer enhancementthermo-hydraulic performance |
| spellingShingle | Penglong Zhu Guoxiu Sun Ruimeng Liu Sicong Zhou Baisong Hu Shaofeng Zhang Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts Energies numerical investigation heat transfer enhancement thermo-hydraulic performance |
| title | Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts |
| title_full | Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts |
| title_fullStr | Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts |
| title_full_unstemmed | Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts |
| title_short | Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts |
| title_sort | numerical investigation of heat transfer and flow dynamics in tubes with dna inspired slotted inserts |
| topic | numerical investigation heat transfer enhancement thermo-hydraulic performance |
| url | https://www.mdpi.com/1996-1073/18/2/376 |
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