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A numerical method for the efficient design of free opening hoods in industrial and domestic applications

Author

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  • Pinelli, Michele
  • Suman, Alessio

Abstract

In this paper, a numerical method for the design of free opening hoods in industrial and domestic applications is presented. The method is based on a CFD (Computational Fluid Dynamics) formulation for the capturing velocity assessment in capturing hoods which account for geometrical and viscous effects. Different hoods, which differ in shape (square and rectangular) and size, are created and their velocity field determined numerically. A comparison between the obtained numerical results and results obtained from empirical formula found in literature are presented and the discrepancy between them highlighted. Then, starting from the numerical results, a new equation, which takes into account viscous effects, is proposed, together with its range of applicability and its level of confidence. The suggested equation is simple in nature and it can be user friendly for the designer, in order to predict the air velocity in front of a capturing hood, and therefore to correctly and efficiently design the ventilation system.

Suggested Citation

  • Pinelli, Michele & Suman, Alessio, 2014. "A numerical method for the efficient design of free opening hoods in industrial and domestic applications," Energy, Elsevier, vol. 74(C), pages 484-493.
    • Handle: RePEc:eee:energy:v:74:y:2014:i:c:p:484-493
    DOI: 10.1016/j.energy.2014.07.014
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    References listed on IDEAS

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    1. Mills, Evan & Sartor, Dale, 2005. "Energy use and savings potential for laboratory fume hoods," Energy, Elsevier, vol. 30(10), pages 1859-1864.
    2. Pinelli, M. & Bucci, G., 2009. "Numerical based design of exhaust gas system in a cogeneration power plant," Applied Energy, Elsevier, vol. 86(6), pages 857-866, June.
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    Cited by:

    1. Jianwu Chen & Longzhe Jin & Zhenfang Chen & Bin Yang & Yanqiu Sun & Shulin Zhou, 2020. "Center-Line Velocity Change Regime in a Parallel-Flow Square Exhaust Hood," IJERPH, MDPI, vol. 17(12), pages 1-11, June.
    2. Cicconi, Paolo & Landi, Daniele & Germani, Michele & Russo, Anna Costanza, 2017. "A support approach for the conceptual design of energy-efficient cooker hoods," Applied Energy, Elsevier, vol. 206(C), pages 222-239.

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