Enhancing heat transfer in tube heat exchanger containing water/Cu nanofluid by using turbulator
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Zhiqiang Long
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Zhengxin Wu
Abstract
In the current essay, the numerical investigation of heat transfer in an exchanger containing nanofluid with Cu nanoparticles in the presence of a new inserter is carried out. The equations governing the turbulent fluid flow have been solved utilizing single-phase models with the aid of the finite volume method in ANSYS-FLUENT software using the k-ε turbulence model for the Re number ranging from 4000 to 8000. Furthermore, the influence of Reynolds number, nanoparticle volume fraction, and geometric characteristics of turbulator on the friction factor and Nusselt number have been scrutinized. Outcomes reveal that the newly introduced inserter performs well and increases the Nusselt number by roughly 34–54 times and the friction coefficient by approximately 1.8–3.2 times compared to the smooth tube. It is also observed that a 2 % increase in the nanoparticles volume fraction has resulted in a rise in the Nusselt number by around 92 %. To attain the optimal performance of the presented turbulator, the longitudinal distance between the inserters is recommended as S/D = 5.27, for which Performance evaluation criteria values in the range of 3.01–9.23 in the Reynolds range under investigation are acquired.
Funding source: Shenzhen Science and Technology Innovation Commission Key Technical Project
Award Identifier / Grant number: JSGG20210713091539014
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: This work was supported by Shenzhen Science and Technology Innovation Commission Key Technical Project (JSGG20210713091539014).
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Data availability: Not applicable.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Numerical investigation of liquid mass fraction and condensation shock of wet-steam flow through convergence-divergence nozzle using strategic water droplets injection
- Energy, exergy, economic, and environmental analysis of natural gas sweetening process using lean vapor compression: a comparison study
- Enhancing heat transfer in tube heat exchanger containing water/Cu nanofluid by using turbulator
- Development of a superstructure optimization framework with heat integration for the production of biodiesel
- Smith predictor based fractional order controller design for improved performance and robustness of unstable FOPTD processes
- Kinetic studies and dynamic modeling of sophorolipids production by Candida catenulata using different carbon sources
- Modeling of reaction–desorption process by core–shell particles dispersed in continuously stirred tank reactor (CSTR)
- Mathematical modeling and evaluation of permeation and membrane separation performance for Fischer–Tropsch products in a hydrophilic membrane reactor
- Hydrodynamic simulation-informed compartment modelling of an annular centrifugal contactor
- Short Communication
- Simulation of single-effect and triple-effect evaporator for fruit juice concentration using Aspen HYSYS
Artikel in diesem Heft
- Frontmatter
- Research Articles
- Numerical investigation of liquid mass fraction and condensation shock of wet-steam flow through convergence-divergence nozzle using strategic water droplets injection
- Energy, exergy, economic, and environmental analysis of natural gas sweetening process using lean vapor compression: a comparison study
- Enhancing heat transfer in tube heat exchanger containing water/Cu nanofluid by using turbulator
- Development of a superstructure optimization framework with heat integration for the production of biodiesel
- Smith predictor based fractional order controller design for improved performance and robustness of unstable FOPTD processes
- Kinetic studies and dynamic modeling of sophorolipids production by Candida catenulata using different carbon sources
- Modeling of reaction–desorption process by core–shell particles dispersed in continuously stirred tank reactor (CSTR)
- Mathematical modeling and evaluation of permeation and membrane separation performance for Fischer–Tropsch products in a hydrophilic membrane reactor
- Hydrodynamic simulation-informed compartment modelling of an annular centrifugal contactor
- Short Communication
- Simulation of single-effect and triple-effect evaporator for fruit juice concentration using Aspen HYSYS
