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Atomization and Sprays
インパクトファクター: 1.737 5年インパクトファクター: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.2016014246
pages 1069-1081

REDEFINING SPRAY UNIFORMITY THROUGH AN INFORMATION THEORY APPROACH

Miguel R. Oliveira Panão
ADAI-LAETA, Mechanical Engineering Department, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal

要約

The assessment of spray uniformity is an important step in the fabrication of powders in spray drying processes. The most common approach is based on the relative span, but it has its limitations. And, in some cases, it is shown to be less reliable than initially thought. The underlying reason is that it considers certain characteristic parameters extracted from the probability distribution, but not the distribution itself. This is why, based on experimental evidence obtained in ultrasonic sprays, a more reliable approach is suggested as spray uniformity index based on information theory through the normalized Shannon information entropy.


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