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Operational parameters impact on the performance of dry-ice blasting nozzle

Author

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  • Dzido, Aleksandra
  • Krawczyk, Piotr
  • Badyda, Krzysztof
  • Chondrokostas, Piotr

Abstract

Carbon dioxide due to its chemical and physical properties can be successfully used in the wide range of surface cleaning an pre-treatment applications. One of the main carbon dioxide cleaning application is the dry-ice blasting, which seems to be a promising method of industrial devices cleaning. In the method the solid carbon dioxide particles supplied by the pressurized dry air are speed up to supersonic velocities in the convergent-divergent nozzle to finally reach the cleaning surface. Then via cooling and sublimation, causing in the rapid volume growth the pollution is crashed and removed with the air flow. Main cleaning mechanisms of dry-ice blasting are described in the paper. The crucial part of the system is the nozzle. The article covers the operational parameters impact on the nozzle performance. The authors present the methodology allowing the dry-ice blasting system assessment and provided the bench tests of the convergent-divergent supersonic nozzle in the field of nozzle’s efficiency, cleaning speed and operational costs. Impact of inlet air pressure, nozzle outlet-surface distance, cleaning angle, surface type and crushing sieve implementation was determined and analysed.

Suggested Citation

  • Dzido, Aleksandra & Krawczyk, Piotr & Badyda, Krzysztof & Chondrokostas, Piotr, 2021. "Operational parameters impact on the performance of dry-ice blasting nozzle," Energy, Elsevier, vol. 214(C).
    • Handle: RePEc:eee:energy:v:214:y:2021:i:c:s036054422031954x
    DOI: 10.1016/j.energy.2020.118847
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    References listed on IDEAS

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    1. Aleksandra Dzido & Piotr Krawczyk & Michalina Kurkus-Gruszecka, 2019. "Numerical Analysis of Dry Ice Blasting Convergent-Divergent Supersonic Nozzle," Energies, MDPI, vol. 12(24), pages 1-14, December.
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