%0 Journal Article %A Ejim, C. E. %A Rahman, Mohammad Azizur %A Amirfazli, Alidad %A Fleck, Brian A. %D 2010 %I Begell House %K scaling, two-phase gas/liquid spray, Sauter mean diameter, phase-Doppler particle anemometer, gas-to-liquid ratio, fluid coker nozzle %N 2 %P 133-155 %R 10.1615/MultScienTechn.v22.i2.30 %T EXPERIMENTAL INVESTIGATION OF GEOMETRIC SCALING ON ATOMIZATION IN A TWO-PHASE GAS/LIQUID SPRAY %U https://www.dl.begellhouse.com/journals/5af8c23d50e0a883,2ace4ef415ce34d2,30c855165add5f8a.html %V 22 %X In this study the atomization performance of a full-scale industrial air-liquid nozzle is compared to a one-quarter model. The objective is to establish a global Sauter mean diameter D32(gb) correlation as a function of nozzle size (D) in a two-phase gas/liquid (TPGL) spray atomization. This information is to be used in the design and development of nozzles for heavy oil upgrading industry. Compressed air was used as the gas phase; the liquids were water, canola oil, and glycerine solutions all at room temperature. The liquid flow rates were varied from 0.095 to 0.195 L/s, and the gas-to-liquid-ratio (β), by mass, was fixed at 1%, similar to commercial fluid coker nozzles. Fluid mixing pressures in the test were between 516 and 1000 kPa. The D32 within the spray was measured using a Dantec 2-D phase-Doppler particle anemometer (PDPA) with measurements performed at axial distances of 100, 202, and 405 mm from the nozzle exit and within spray widths of +50 to -50 mm in the horizontal plane. Experimental results show that if the D is increased from 3.1 to 4.1 mm (1.3 times), D does not show a change on D32 and equates to the power of 0.1 (glycerine solution sprays at μL = 67 mPa s) to 0.9 (water sprays at μL = 1 mPa s). Finally, the D32(gb) correlation as a function of geometric scaling estimated drop size within a 17% maximum deviation between the experimental and curve fit data. %8 2010-06-30