Atomization characteristics of bitumen crude-water emulsion

Date

1998-01-01

Author

Romano, M
Allouis, Christophe Gerard
Beretta, F
D'Alessio, A

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

69
views

0
downloads

Measurements of the angular patterns of scattered light were carried out on sprays of an emulsion of bitumen crude (70% by weight) in water produced by a home-built air-assisted atomizer at different air flow rates. The size distribution of the bitumen droplets was previously measured by optical microscopy. A quantitative comparison of the scattering measurements in terms of the polarization ratio with the Lorenz-Mie theory allows the identification of the nature of spray and its droplets size distribution (DSD). For all the atomization conditions, the patterns show the influence of a large amount of small droplets that might have been stripped from the emulsion rather than produced during atomization. On the other hand, an increase of the amount of the large droplets was observed compared with the parent emulsion. The satellite water droplets number increases with the atomization energy.

URI

https://hdl.handle.net/11511/89900

Journal

ATOMIZATION AND SPRAYS

DOI

https://doi.org/10.1615/atomizspr.v8.i1.60

Collections

Department of Mechanical Engineering, Article

Suggestions

OpenMETU
Core

Calorimetric study approach for crude oil combustion in the presence of clay as catalyst Varfolomeev, Mikhail A.; Nurgaliev, Danis K.; Kök, Mustafa Verşan (2016-01-01) In this research, the effect of heating rate and different clay concentrations on light and heavy crude oils in limestone matrix was investigated by differential scanning calorimeter (DSC). In DSC experiments, two main distinct reaction regions were identified in all of the crude oil + limestone matrix + catalyst, known as low- and high-temperature oxidation respectively. It was observed that addition of clay to porous matrix significantly affected the thermal characteristics and kinetics of different origi...
Thermal Analysis of Crude oil lignite mixtures by Differential Scanning Calorimetry Kök, Mustafa Verşan (Elsevier BV, 1994-04-01) Thermal characterization of lignite, crude oils and their 10 and 20% mixtures were investigated by differential scanning calorimetry (d.s.c.). The calorific value of the lignite increased in mixtures depending on the crude oil type. In pyrolysis runs, temperature ranges where distillation and visbreaking occur were identified for the crude oils studied. The effect of heating rate was also studied, and higher reaction temperatures and higher heat flow rates were observed at d.s.c. peak thermograms with incre...
ULTRAFINE PARTICLE GENERATION AT HIGH LIQUID FLOW-RATES WITH COMMERCIAL 2-FLUID NOZZLES Salisbury, Cindy; Tuncel, Süleyman Gürdal; Ondov, John (1991-01-01) Residue particles with volume median diameters ranging from 23 to 68 nm were made by dispersing KNO3 or MnCL2.4H2O solutions with commercially available pneumatic nozzles at liquid flow rates of 0.07 and 0.021 cm3/s and atomizing air pressures (gauge) ranging from 276 to 3447 kPag. Droplets with median diameters of 1.5 +/- 0.03-mu-m were made at the 0.07 cm3/s liquid flow rate, which represents a nearly 10-fold increase in liquid flow rate achieved with Collison atomizers used to generate droplets of simil...
Combustion behaviour of Turkish lignite in O-2/N-2 and O-2/CO2 mixtures by using TGA-FTIR Selçuk, Nevin (2011-03-01) The pyrolysis and combustion behaviour of a low calorific value Turkish lignite with high sulphur and ash content in air and oxy-fuel conditions were investigated by using non-isothermal thermo-gravimetric method (TGA) coupled with Fourier-transform infrared (FTIR) spectrometer. Pyrolysis tests were carried out in nitrogen and carbon dioxide environments which are the main diluting gases of air and oxy-fuel environment, respectively. Pyrolysis results show that weight loss profiles are almost the same up to...
Trapping center parameters of TlGaSe2 layered crystals Yuksek, NS; Kavas, H; Hasanlı, Nızamı; Ozkan, H (Elsevier BV, 2004-02-15) Thermally stimulated current measurements are carried out on as-grown TlGaSe2 layered single crystals in the temperature range of 90-220 K with various heating rates. Experimental evidence is found for the presence of two trapping centers with activation energy 98 and 130 meV. The retrapping process is negligible for these levels, as confirmed by good agreement between the experimental results and theoretical predictions of the model that assumes slow retrapping. The calculation yielded 2.3 x 10(-24) and 1....

Citation Formats

M. Romano, C. G. Allouis, F. Beretta, and A. D’Alessio, “Atomization characteristics of bitumen crude-water emulsion,” ATOMIZATION AND SPRAYS, pp. 109–121, 1998, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89900.