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A model for the performance assessment of hybrid coolers by means of transient numerical simulation

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  • D’Antoni, M.
  • Romeli, D.
  • Fedrizzi, R.

Abstract

This paper presents the development of a numerical model of a hybrid cooler for transient simulation purposes as a component of a thermal energy system. The model uses a modular definition of the control volume, and is suitable for modelling any staggered coil geometry. The set of parameters required for modelling the hybrid cooler is typical of the so-called design models. A rigorous analysis of sensible and latent heat fluxes due to spray water evaporation is included. Further, the model can be exploited for the development of user-defined control strategies of fans and water spray systems. The model is validated using monitored data from a pilot system installation in which a commercial hybrid cooler is operated under typical summer south European working conditions.

Suggested Citation

  • D’Antoni, M. & Romeli, D. & Fedrizzi, R., 2016. "A model for the performance assessment of hybrid coolers by means of transient numerical simulation," Applied Energy, Elsevier, vol. 181(C), pages 477-494.
    • Handle: RePEc:eee:appene:v:181:y:2016:i:c:p:477-494
    DOI: 10.1016/j.apenergy.2016.08.110
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    References listed on IDEAS

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    1. Stabat, Pascal & Marchio, Dominique, 2004. "Simplified model for indirect-contact evaporative cooling-tower behaviour," Applied Energy, Elsevier, vol. 78(4), pages 433-451, August.
    2. Cheng, Wen-Long & Han, Feng-Yun & Liu, Qi-Nie & Fan, Han-Lin, 2011. "Spray characteristics and spray cooling heat transfer in the non-boiling regime," Energy, Elsevier, vol. 36(5), pages 3399-3405.
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