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    Numerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).

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    Authors
    Calautit, John Kaiser
    Hughes, Ben
    O'Connor, Dominic
    Shahzad, Sally cc
    Affiliation
    University of Sheffield
    University of Derby
    Issue Date
    2016
    
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    Abstract
    The aim of this work was to investigate the performance of a multi-directional wind tower integrated with vertically-arranged heat transfer devices (VHTD) using Computational Fluid Dynamics (CFD) and wind tunnel analysis. An experimental scale model was created using 3D printing. The scale model was tested in a uniform flow closed-loop wind tunnel to validate the CFD data. Numerical results of the supply airflow were compared with experimental data. Good agreement was observed between both methods of analysis. The Grid Convergence Method (GCI) method was used to estimate the uncertainty due to discretisation. Results have indicated that the achieved indoor air speed was reduced by 8–17% following the integration of the VHTD. The integration of VHTD had a positive effect on cooling performance of the wind tower, it reduced the incoming fresh air by up to 12 K. The effect of varying the number of VHTD rows (1–3 rows) on the system’s performance were also investigated. Additional simulations were also conducted to investigate the effect of atmospheric boundary layer (ABL) flows on the wind tower ventilation performance and also compare it with the results of uniform flow wind tunnel study.
    Citation
    Calautit, J.K., Hughes, B., O’Connor, D., Shahzad, S.S. 2016. 'Numerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).' Applied Energy Journal, Vol. 185, Part 2, pp. 1120-1135. DOI: 10.1016/j.apenergy.2016.02.025
    Journal
    Applied Energy Journal
    URI
    http://hdl.handle.net/10545/620581
    DOI
    10.1016/j.apenergy.2016.02.025
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0306261916301489
    Type
    Article
    Language
    en
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.apenergy.2016.02.025
    Scopus Count
    Collections
    Department of Mechanical Engineering & the Built Environment

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