This paper aims to analyze the heat transfer characteristics of a double-array helical elastic tube bundle heat exchanger with vibration. The characteristics were investigated by using a bidirectional fluid–solid coupling calculation method with different winding numbers and inlet-flow velocities. Results indicate that in the shell-side fluid, the greater the flow velocity, the more the turbulent energy of fluid, the stronger the turbulence characteristics, and the better the heat transfer effect. In the shell-side fluid, the process of heat exchange is a heat accumulation process: the greater the flow velocity, the more heat absorbed by the fluid in a unit of time, and the better the heat transfer effect. The performance evaluation criteria (PEC) have increased by 2.33%, and the average volume heat transfer coefficient (HTC) has increased by 80.80% when the inlet-flow velocity is constant, as the winding number increases. In addition, PEC has increased by 7.84%, and the average volume HTC has increased by 3.6 times when the winding number is constant, as the inlet-flow velocity increases.


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    Title :

    Vibration-Enhanced Heat Transfer of Double-Array Helical Elastic Tube Bundle Heat Exchanger


    Contributors:
    Ji, Jiadong (author) / Li, Feiyang (author) / Shi, Baojun (author) / Gao, Runmiao (author) / Zhang, Jingwei (author) / Deng, Xu (author)

    Published in:

    Publication date :

    2022-04-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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