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Simulation and energy efficiency analysis of desiccant wheel systems for drying processes

Author

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  • De Antonellis, Stefano
  • Joppolo, Cesare Maria
  • Molinaroli, Luca
  • Pasini, Alberto

Abstract

In drying processes it is necessary to appropriately control air humidity and temperature in order to enhance water evaporation from product surface. The aim of this work is to investigate several HVAC configurations for product drying based on desiccant wheels, in order to find systems which reach high primary energy savings through the appropriate integration of refrigerating machines, adsorption wheels and cogenerative engines. Simulations are carried out for different values of sensible to latent ambient load ratio and the effect of ambient and outside air conditions is evaluated for each configuration. It is shown that primary energy savings can reach 70–80% compared to the reference technology based on a cooling coil. With respect to works available in literature, the results of this study keep a general approach and they can be used as a simple tool for preliminary assessment in a wide range of applications.

Suggested Citation

  • De Antonellis, Stefano & Joppolo, Cesare Maria & Molinaroli, Luca & Pasini, Alberto, 2012. "Simulation and energy efficiency analysis of desiccant wheel systems for drying processes," Energy, Elsevier, vol. 37(1), pages 336-345.
    • Handle: RePEc:eee:energy:v:37:y:2012:i:1:p:336-345
    DOI: 10.1016/j.energy.2011.11.021
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    References listed on IDEAS

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    Cited by:

    1. Misha, S. & Mat, S. & Ruslan, M.H. & Sopian, K., 2012. "Review of solid/liquid desiccant in the drying applications and its regeneration methods," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(7), pages 4686-4707.
    2. Ruivo, Celestino R. & Goldsworthy, Mark & Intini, Manuel, 2014. "Interpolation methods to predict the influence of inlet airflow states on desiccant wheel performance at low regeneration temperature," Energy, Elsevier, vol. 68(C), pages 765-772.
    3. Bellocchi, Sara & Guizzi, Giuseppe Leo & Manno, Michele & Pentimalli, Marzia & Salvatori, Marco & Zaccagnini, Alessandro, 2017. "Adsorbent materials for low-grade waste heat recovery: Application to industrial pasta drying processes," Energy, Elsevier, vol. 140(P1), pages 729-745.
    4. Marcin Sosnowski, 2019. "Evaluation of Heat Transfer Performance of a Multi-Disc Sorption Bed Dedicated for Adsorption Cooling Technology," Energies, MDPI, vol. 12(24), pages 1-19, December.
    5. Nóbrega, Carlos E.L., 2014. "A parametric analysis of periodic and coupled heat and mass diffusion in desiccant wheels," Energy, Elsevier, vol. 76(C), pages 942-948.
    6. Sheng, Ying & Zhang, Yufeng & Zhang, Ge, 2015. "Simulation and energy saving analysis of high temperature heat pump coupling to desiccant wheel air conditioning system," Energy, Elsevier, vol. 83(C), pages 583-596.

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