A heat exchanger with a curved baffle for an elastic-tube bundle (ETB) is designed to effectively improve the performance based on a common ETB heat exchanger, and this paper systematically studies its vibration and heat transfer characteristics under different inlet velocity and structural parameters. The results indicate that the ETB vibration characteristics increase significantly with an increasing velocity, and the average amplitude of the ETB at 0.7 m / s is 4.51 times higher than that at 0.1 m / s . Similarly, the heat transfer performance subsequently decreases, but the average heat transfer coefficient of the ETB is significantly increased with the increase of the inlet velocity. When the long axis increases from 45 to 75 mm, the vibration intensity of the ETB decreases sharply, and the x direction and the total vibration A a decrease by 43.4 and 51.5%, respectively. At the same time, the heat transfer coefficient of the ETB and its growth rate decrease by 3.9 and 45.6%. Additionally, the baffle curvature has little impact on the vibration and heat transfer performance. The difference between the average heat transfer coefficient and the total vibration amplitude of the ETB for different baffle curvatures is less than 5%.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Vibration and Heat Transfer Study on Elastic-Tube Heat Exchange with Curved Baffle


    Contributors:
    Xiwang, Qie (author) / Jiadong, Ji (author) / Feiyang, Li (author) / Xu, Deng (author) / Jianxin, Zhou (author)

    Published in:

    Publication date :

    2024-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Optimizing Baffle Height in Improved Elastic Tube Bundle Heat Exchangers

    Ji, Jiadong / Pan, Yuling / Zhang, Jingwei et al. | AIAA | 2024




    Numerical Research on Vibration-Enhanced Heat Transfer of Elastic Scroll Tube Bundle

    Ji, Jiadong / Zhang, Jingwei / Gao, Runmiao et al. | AIAA | 2022

    Free access

    HEAT BAFFLE CLIP SHIELD

    BOWERS SHAWN L | European Patent Office | 2019

    Free access