Numerical Simulation for Conjugated Heat Transfer in Concentric Tube Recuperator with Longitudinal Fins

Ming Hui Liu; Cui Zhen Zhang; Mo Yang

doi:10.4028/www.scientific.net/AMR.753-755.948

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 753-755Numerical Simulation for Conjugated Heat Transfer...

Numerical Simulation for Conjugated Heat Transfer in Concentric Tube Recuperator with Longitudinal Fins

Abstract:

In this paper, a conjugated heat transfer problem of conduction and convection in the concentric tubes with longitudinal fins was studied by means of numerical simulation. 3D temperature and fluid flow fields were simulated for three-split concentric tube recuperator with longitudinal fins for laminar fluid flow. The numerical simulation results show that the ratio of , which is the function of the angle of fins and axis, and solid thermal conductivity, decreases quickly as longitudinal length increases. If the conduit is long enough, the ratio of can be neglected. The ratio of Nusselt number and the ratio of friction factor increase as the angle of fins and axis increases, and the ratio of Nusselt number increases more quickly than that of the friction factor for the same angle.

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Periodical:

Advanced Materials Research (Volumes 753-755)

Pages:

948-954

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.753-755.948

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Online since:

August 2013

Authors:

Ming Hui Liu, Cui Zhen Zhang, Mo Yang

Keywords:

Concentric Tube, Longitudinal Fins, Numerical Simulation, Recuperator

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References

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