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International Journal of Fluid Mechanics Research

Publicado 6 números por año

ISSN Imprimir: 2152-5102

ISSN En Línea: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Black Liquor Sheet Breakup Mechanisms and the Effect on Drop Size

Volumen 24, Edición 1-3, 1997, pp. 350-357
DOI: 10.1615/InterJFluidMechRes.v24.i1-3.350
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SINOPSIS

Black liquor is a spent liquor of the pulp and paper industry. It is burned in kraft recovery boilers for chemical and energy recovery. The high dry solids content and viscosity of black liquor require a high spraying temperature this high spraying temperature changes the performance of the boiler. Kraft recovery boiler deposit formation, emissions and chemical recovery are strongly affected by the drop size, size distribution and velocity of the black liquor spray formed by a splashplate nozzle.
Black liquor droplet formation of a splashplate nozzle is the subject of this study. The sheet breakup mechanism was studied with a system based on a video and image-analysis. The drop size of mill-scale nozzles was also measured with an image-analysis-system. Measurements were carried out in a test chamber.
The sheet breakup mechanism and drop size tests were carried out both below and over the boiling point of black liquor. Special attention was paid to the effect of flashing on drop formation. Temperature increase normally decreases drop size. In the case when the wavy-sheet disintegration changes to perforated-sheet disintegration, the drop size increases. Spray velocity rises when the temperature is increased above the boiling point.

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