Simulation Study for Heat Transfer Performance of Spiral Flow Double-Pipe Heat Exchanger

Abstract:

In this article, simulation analysis has been performed for the flow and heat transfer performance of spiral flow double-pipe heat exchanger using finite volume method, respectively for the relationship between Nu and the average shear force on inner pipe outer wall at different turbulent flow Re with different radial offset of inlet and outlet pipes and different spacing of inlet and outlet pipes. The results show that, as compared with an ordinary double-pipe heat exchanger, in a spiral flow double-pipe heat exchanger, both inner pipe convective heat exchange coefficient and inner pipe wall surface shear force are lower, with the magnitude of reduction related to a number of factors such as radial offset of inlet and outlet pipes and Re. The study in this article has provided theoretical basis for further engineering application of spiral flow double-pipe heat exchangers.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 3024-3028
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.3024
• Online since: July 2012
• Authors: Yi Ning Wang, Qun Hui Lu, Yang Yan Zheng, Biao Yuan
• Keywords: Double-Pipe Heat Exchanger, Simulation, Spiral Flow

References

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