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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Published inEnergies (Basel) Vol. 18; no. 2; p. 376
Main Authors Zhu, Penglong, Sun, Guoxiu, Liu, Ruimeng, Zhou, Sicong, Hu, Baisong, Zhang, Shaofeng
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2025
Subjects
Analysis
Cost control
DNA
Efficiency
Energy conservation
Energy consumption
Equipment and supplies
Fluid dynamics
Fluid mechanics
Heat exchangers
Heat transfer
heat transfer enhancement
Heating
Investigations
Numerical analysis
numerical investigation
Research methodology
Reynolds number
Simulation
Simulation methods
Sustainable development
thermo-hydraulic performance
Vortices
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Abstract 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.
AbstractList 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.
Audience Academic
Author Zhu, Penglong
Hu, Baisong
Zhou, Sicong
Sun, Guoxiu
Liu, Ruimeng
Zhang, Shaofeng
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Snippet Within the realm of industrial energy conservation, the optimization of heat exchanger performance is paramount for the augmentation of energy utilization...
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SubjectTerms Analysis
Cost control
DNA
Efficiency
Energy conservation
Energy consumption
Equipment and supplies
Fluid dynamics
Fluid mechanics
Heat exchangers
Heat transfer
heat transfer enhancement
Heating
Investigations
Numerical analysis
numerical investigation
Research methodology
Reynolds number
Simulation
Simulation methods
Sustainable development
thermo-hydraulic performance
Vortices
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Title Numerical Investigation of Heat Transfer and Flow Dynamics in Tubes with DNA-Inspired Slotted Inserts
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