Publicado 12 números por año
ISSN Imprimir: 1044-5110
ISSN En Línea: 1936-2684
Indexed in
UNSTEADINESS IN EFFERVESCENT SPRAYS: A NEW EVALUATION METHOD AND THE INFLUENCE OF OPERATIONAL CONDITIONS
SINOPSIS
A new evaluation method of unsteadiness of the spray generated by an effervescent atomizer is presented. The method is based on measurements of pressure fluctuations in the atomizer mixing chamber. Measurements, made under different atomizer operational conditions, show that the spray unsteadiness depends mainly on gas-to-liquid ratio (GLR). Decrease in GLR causes the spray to become more unsteady. The relation between atomizer internal two-phase flow pattern and the spray unsteadiness is elucidated by visualization of the internal two-phase flow using a digital camera and the use of published two-phase flow maps. Findings of the new method are complemented and confronted with the results obtained by the use of the spray unsteadiness evaluation method of Edwars and Marx.
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Schröder Jewe, Kraus Stefan, Rocha Bruna Bertolla, Gaukel Volker, Schuchmann Heike P., Characterization of gelatinized corn starch suspensions and resulting drop size distributions after effervescent atomization, Journal of Food Engineering, 105, 4, 2011. Crossref
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Hampel U., Otahal J., Boden S., Beyer M., Schleicher E., Zimmermann W., Jicha M., Miniature conductivity wire-mesh sensor for gas-liquid two-phase flow measurement, Flow Measurement and Instrumentation, 20, 1, 2009. Crossref
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Pacifico Antonio L., Yanagihara Jurandir I., The influence of geometrical and operational parameters on Y-jet atomizers performance, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 36, 1, 2014. Crossref
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Sen Debjyoti, Balzan Miguel A., Nobes David S., Fleck Brian A., Bubble formation and flow instability in an effervescent atomizer, Journal of Visualization, 17, 2, 2014. Crossref
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Hong Moongeun, Fleck Brian A., Nobes David S., Unsteadiness of the internal flow in an effervescent atomizer nozzle, Experiments in Fluids, 55, 12, 2014. Crossref
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Sun Chunhua, Ning Zhi, Lv Ming, Yan Kai, Fu Juan, Time–frequency analysis of acoustic and unsteadiness evaluation in effervescent sprays, Chemical Engineering Science, 127, 2015. Crossref
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Sun Chunhua, Ning Zhi, Lv Ming, Yan Kai, Fu Juan, Acoustic performance of effervescent sprays by time–frequency method with different atomizer structures under different operating conditions, International Journal of Multiphase Flow, 82, 2016. Crossref
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Li Xing-gang, Fritsching Udo, Spray Transport Fundamentals, in Metal Sprays and Spray Deposition, 2017. Crossref
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Sun Chunhua, Ning Zhi, Qiao Xinqi, Lv Ming, Li Yuanxu, Zhao Jin, Wang Xintao, Measurements of internal flow regime and bubble size in effervescent atomizer, Experimental Thermal and Fluid Science, 98, 2018. Crossref
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Wittner Marc O., Karbstein Heike P., Gaukel Volker, Energy efficient spray drying by increased feed dry matter content: investigations on the applicability of Air-Core-Liquid-Ring atomization on pilot scale, Drying Technology, 38, 10, 2020. Crossref
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Mlkvik Marek, Jedelsky Jan, Karbstein Heike P., Gaukel Volker, Spraying of Viscous Liquids: Influence of Fluid-Mixing Mechanism on the Performance of Internal-Mixing Twin-Fluid Atomizers, Applied Sciences, 10, 15, 2020. Crossref
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Hammad Farid A., Sun Kai, Che Zhizhao, Jedelsky Jan, Wang Tianyou, Internal two-phase flow and spray characteristics of outside-in-liquid twin-fluid atomizers, Applied Thermal Engineering, 187, 2021. Crossref
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Kermes Vít, Be˘lohradský Petr, Oral Jaroslav, Stehlík Petr, Testing of gas and liquid fuel burners for power and process industries, Energy, 33, 10, 2008. Crossref
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Jedelský Jan, Jícha Miroslav, Spray characteristics and liquid distribution of multi-hole effervescent atomisers for industrial burners, Applied Thermal Engineering, 96, 2016. Crossref