Viscosity, Surface Tension, and Atomization of Water-Methanol and Diesel Emulsions

Sheng, Hongzhi; Wu, Dongyin; Zhang, Hongce; Wei, Xiaolin

doi:10.1615/atomizspr.v16.i1.10

Cited by 12 publications

(6 citation statements)

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“…The atomization quantities produced in each rotating speed could be calculated by formula 1 (Liu et al, 2006;Sheng et al, 2006). The speed of rotating dishes installed in investigated WWTP was 50 rpm.…”

Section: Surface Aerationmentioning

confidence: 99%

Characteristics and formation mechanism of intestinal bacteria particles emitted from aerated wastewater treatment tanks

Wang

Xue

et al. 2019

Water Research

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Aeration tanks in municipal wastewater treatment plants (WWTPs) are regarded as sources of bioaerosols, often containing particles and microbes. In this study, intestinal bacteria were investigated from biochemical reaction tanks (BRTs) of six municipal WWTPs. It was observed that 86 CFU/m 3 of intestinal bacteria (in average) occurred in the BRTs installed surface aerator, which was higher than those adopted submerged aeration (67 CFU/m 3 in average). 62.72% of fine particles were observed in the BRTs supplied oxygen by submerged aerator, while 75.73% of coarse particles emitted during surface aeration. Pseudomonas sp., Serratia sp. and Acinetobacter sp. were identified as pathogenic bacteria presented in the intestinal bacteria population and most of them existed initially in water or sludge, particularly in water surface. The emission level and particle size distribution were significantly correlated with aeration mode adopted by the WWTPs. The bioaerosols particles emitted from surface aeration process was higher than that from submerged aeration process. Meanwhile, the BRTs with submerged aerators released more fine particles, which can get into the alveoli and represented the potential challenge to human health. Canonical correspondence analysis results exhibited that population of intestinal bacteria had a positive correlation with aeration rate and water quality. As the intestinal bacteria in the bioaerosols emitted from the WWTPs may pose a potential risk to onsite operators, aeration tanks in WWTPs should be paid more attention as a source of intestinal bacterial emissions.

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Section: Surface Aerationmentioning

confidence: 99%

Characteristics and formation mechanism of intestinal bacteria particles emitted from aerated wastewater treatment tanks

Wang

Xue

et al. 2019

Water Research

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“…On the other hand, if the surface tension increases, then a minimum operating pressure and decreasing spray angle is obtained (Rizkalla and Lefebvre 1975; Schick 2008). When nonNewtonian liquids are used (such as water‐in‐oil emulsions, with the aqueous phase between 10% and 50%), it has been shown that an increase of the aqueous phase concentration leads to a larger D 32 (Sheng and others 2006). Liquid density also affects droplet diameter in a complex manner.…”

Section: Important Parameters In the Control Of Spray Coatingsmentioning

confidence: 99%

Atomizing Spray Systems for Application of Edible Coatings

Andrade

Skurtys

Osorio

2012

Comp Rev Food Sci Food Safe

164

120

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The use of edible coatings on fresh and processed food products as a means of extending shelf life by preventing or delaying spoilage, providing a partial barrier to moisture, oxygen, and carbon dioxide, improving the mechanical handling properties, and even as carriers of many functional ingredients, is rapidly growing. Edible coatings can be applied by different methods such as panning, fluidized bed, dipping, and spraying. This review presents and discusses some aspects of the application of edible coatings on food products using spraying, which is the most commonly used technique for applying food coatings and to obtain uniform layers.

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“…This is because that the viscosity, density and surface tension of liquid would remarkably affect the spray process. Based on the property analysis 4 , the density and surface tension of D70M10W20 emulsion is larger than that of diesel and the viscosity of D70M10W20 emulsion is also four times larger than that of diesel. The higher liquid density, the mass and kinetic energy is higher.…”

Section: Comparison With Emulsion and Dieselmentioning

confidence: 99%

“…Diesel-methanol-water (DMW) emulsion is a new kind of oxygenated emulsion fuel which has more advantages of fewer emulsifiers, longer stable phase and higher calorific value than other two-phase oil/water emulsion because of the adding methanol. Therefore, diesel-methanol-water emulsion has come to receive a great deal of attention [3][4][5] . The application of such emulsion is particularly suitable for regions which are rich in coal but deficient in petroleum because methanol can be made from coal.…”

Section: Introductionmentioning

confidence: 99%

Study on Diesel-Methanol-Water Emulsion Spray in High-Pressure Bomb

Wu¹,

Wang²,

Li³

et al. 2014

Asian J. Chem.

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The spray characteristics of diesel-methanol-water emulsion in a constant volume chamber were studied through high-speed photography experiment and the spray penetration and spray cone angle of emulsion in different ambient pressures and injection pressures were measured. The results showed that the spray penetration of diesel-methanol-water emulsion decreased with the increasing ambient pressure, but increased with the increasing nozzle pressure. The spray cone angle increased with the increasing the ambient pressure and the nozzle pressure. Under the same condition, the spray penetration of diesel-methanol-water emulsion was greater than that of diesel, while the spray cone angle was less than that of diesel. Because the viscosity and surface tension of diesel-methanol-water emulsion was greater than that of diesel, emulsion had worse atomization than diesel.

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Viscosity, Surface Tension, and Atomization of Water-Methanol and Diesel Emulsions

Cited by 12 publications

References 0 publications

Characteristics and formation mechanism of intestinal bacteria particles emitted from aerated wastewater treatment tanks

Characteristics and formation mechanism of intestinal bacteria particles emitted from aerated wastewater treatment tanks

Atomizing Spray Systems for Application of Edible Coatings

Study on Diesel-Methanol-Water Emulsion Spray in High-Pressure Bomb

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