In this study, the atomization of heavy fuel oil (Mazut) and diesel fuel at different pressures is compared experimentally. Also, the effects of temperature on the Mazut fuel atomization are investigated experimentally. Mass flow rate, discharge coefficient, wavelength, liquid film thickness, ligament diameter, spray angle, breakup length, and sature mean diameter are obtained for the Mazut and diesel fuel. Fuels spray images at different pressures and temperatures are recorded using the shadowgraphy method and analyzed by the image processing technique. Error analysis is performed for the experiments, and the percentage of uncertainty for each parameter is reported. The experimental results are compared with the theoretical results. Also, Curves are proposed and plotted to predict changes in the behavior of atomization parameters. Diesel fuel has less viscosity than Mazut fuel. Diesel fuel has shorter breakup length, wavelength, liquid film thickness, and sature mean diameter than Mazut fuel at the same pressure. Diesel fuel has a larger spray angle and a larger discharge coefficient than Mazut fuel at the same pressure. As the pressure and temperature increase, fuel atomization improves. The viscosity of Mazut fuel is decreased by temperature increase. As the fuel injection pressure and temperature increase, breakup length, wavelength, liquid film thickness, and sature mean diameter decrease; also, spray angle increases.
LefebvreAHMcDonellVG.Atomization and sprays. Boca Raton: CRC Press, 2017.
2.
HolfelderO. Ignition and flame development in the case of diesel fuel injection. Report, National Advisory Committee for Aeronautics Collection, Report no. 790, Washington, 1936.
3.
PantonRL.Incompressible flow. New Jersey: John Wiley & Sons, 2013.
4.
GaraniyaVB.Modelling of heavy fuel oil spray combustion using continuous thermodynamics. PhD Thesis, University of Tasmania, Australia, 2009.
5.
RizkNKLefebvreAH.Prediction of velocity coefficient and spray cone angle for simplex swirl atomizers. Int J Turbo Jet Engines1987; 4: 65–74.
6.
SomSAggarwalSK.Effects of primary breakup modeling on spray and combustion characteristics of compression ignition engines. Combust Flame2010; 157: 1179–1193.
7.
SenecalPKSchmidtDPNouarI, et al. Modeling high-speed viscous liquid sheet atomization. Int J Multiphase Flow1999; 25: 1073–1097.
8.
IbrahimA.Comprehensive study of internal flow field and linear and nonlinear instability of an annular liquid sheet emanating from an atomizer. PhD Thesis, University of Cincinnati, United States of America, 2006.
9.
ShirolkarJSCoimbraCFMMcQuayMQ.Fundamental aspects of modeling turbulent particle dispersion in dilute flows. Prog Energy Combust Sci1996; 22: 363–399.
10.
DorfnerVDomnickJDurstF, et al. Viscosity and surface tension effects in pressure swirl atomization. Atomization Sprays1995; 5: 261–285.
11.
TagasakiKTajimaHNakashimaM, et al. Combustion characteristics of trouble-making bunker fuel oil. MTZ Worldw2002; 63: 18–20.
12.
ZhaoSXuZXuC, et al. Feedstock characteristic index and critical properties of heavy crudes and petroleum residua. J Pet Sci Eng2004; 41: 233–242.
13.
GoldsworthyL.Computational fluid dynamics modelling of residual fuel oil combustion in the context of marine diesel engines. Int J Engine Res2006; 7: 181–199.
14.
FinkCBuchholzBNiendorfM, et al. Injection spray analyses from medium speed engines using marine fuels. In: Proceedings of the 22nd European conference on liquid atomization and spray systems (ILASS’08), 8 September 2008, Como Lake, Italy, Detroit, Michigan, U.S.A..
15.
KyriakidesNChryssakisCKaiktsisL. Development of a computational model for heavy fuel oil for marine diesel engine applications. In: 19th international multidimensional engine modeling user’s group meeting at the SAE congress, 19 April 2009, Detroit, Michigan, U.S.A.
16.
ParkJJangJHParkS.Effect of fuel temperature on heavy fuel oil spray characteristics in a common-rail fuel injection system for marine engines. Ocean Eng2015; 104: 580–589.
17.
GuoMShimasakiNNishidaK, et al. Experimental study on fuel spray characteristics under atmospheric and pressurized cross-flow conditions. Fuel2016; 184: 846–855.
18.
GhadimiPNowruziHYousefifardM, et al. A CFD study on spray characteristics of heavy fuel oil-based microalgae biodiesel blends under ultra-high injection pressures. Meccanica2017; 52: 153–170.
19.
Shahsavan-MarkadehR.Modeling of gasification of heavy fuel oil droplet. PhD Thesis, University of Science and Technology, Iran, 2017.
20.
BaderAHartwichMRichterA, et al. Numerical and experimental study of heavy oil gasification in an entrained-flow reactor and the impact of the burner concept. Fuel Process Technol2018; 169: 58–70.
21.
MikanikiPNajafiSMAGhassemiH.Experimental study of a heavy fuel oil atomization by pressure-swirl injector in the application of entrained flow gasifier. Chin J Chem. Eng2019; 27: 765–771.
22.
AzimiAArabkhalajAMarkadehRS, et al. Fully transient modeling of the heavy fuel oil droplets evaporation. Fuel2018; 230: 52–63.
23.
DikshitSBKulshreshthaDBChanniwalaSA.Numerical analysis and empirical correlations to predict SMD of pressure swirl atomizer for small scale gas turbine combustion chamber. Int J Appl Eng Res2018; 13: 4531–4537.
24.
KangZWangZGLiQ, et al. Review on pressure swirl injector in liquid rocket engine. Acta Astronaut2018; 145: 174–198.
25.
RezaeiSVashahiFRyuG, et al. On the correlation of the primary breakup length with fuel temperature in pressure swirl nozzle. Fuel2019; 258: 116094.
26.
OsmanKIsaKMYahyaA, et al. Studies on the spray characteristics of Pressure-Swirl atomizers for automatic hand sanitizer application. J Adv Res Fluid Mech Therm Sci2019; 55: 51–64.
27.
QianWLinYHuiX.Effect of heat and mass transfer on the instability of an annular liquid sheet. Int J Heat Mass Transfer2019; 143: 118499.
28.
RostamiEMahdavy MoghaddamH.The velocity and viscosity impact on the annular spray atomisation of different fuels. Combust Theory Modell2020; 24: 1–35.
29.
CaoZWuQZhouH, et al. Dynamic modeling, systematic analysis, and operation optimization for shell entrained-flow heavy residue gasifier. Energy2020; 197: 117220.
30.
NajafiSMMikanikiPGhassemiH.Numerical simulation of heavy fuel oil atomization using a pulsed pressure-swirl injector. Chin J Chem Eng2020; 28: 1–28.
31.
RanaMSSámanoVAncheytaJ, et al. A review of recent advances on process technologies for upgrading of heavy oils and residua. Fuel2007; 86: 1216–1231.
32.
ZumerchikJ.Macmillan encyclopedia of energy. USA: Macmillan Reference, 2003.
33.
RiaziMR.Characterization and properties of petroleum fractions. USA: ASTM International, 2005.
34.
Castrejón-GarcíaRCastrejón-PitaJRMartinGD, et al. The shadowgraph imaging technique and its modern application to fluid jets and drops. Rev Mexicana Física2011; 57: 266–275.
35.
SivakumarDVankeswaramSKSakthikumarR, et al. Analysis on the atomization characteristics of aviation biofuel discharging from simplex swirl atomizer. Int J Multiphase Flow2015; 72: 88–96.
DombrowskiNHassonD.The flow characteristics of swirl (centrifugal) spray pressure nozzles with low viscosity liquids. AIChE J1969; 15: 604–611.
38.
TaylorGI.The boundary layer in the converging nozzle of a swirl atomizer. Q J Mech Appl Math1950; 3: 129–139.
39.
JonesA.Factors affecting the performance of large swirl pressure jet atomizers. CEGB Lab1982; 52: 54–55.
40.
BallesterJDopazoC.Discharge coefficient and spray angle measurements for small pressure-swirl nozzles. Atomization Sprays1994; 4: 351–367.
41.
HanZParrishSEFarrellPV, et al. Modeling atomization processes of pressure-swirl hollow-cone fuel sprays. Atomization Sprays1997; 7: 663–684.
42.
WalzelP.Spraying and atomizing of liquids in Ullmann's encyclopedia of industrial chemistry. Electronic Release, 2010.
43.
SahaALeeJDBasuS, et al. Breakup and coalescence characteristics of a hollow cone swirling spray. Phys Fluids2012; 24: 124103.
44.
SivakumarDKulkarniV.Regimes of spray formation in gas-centered swirl coaxial atomizers. Exp Fluids2011; 51: 587–596.
45.
AmriRRezougT.Numerical study of liquid propellants combustion for space applications. Acta Astronaut2011; 69: 485–498.
46.
BayvelLOrzechowskiZ.Liquid atomization. Washington, DC: Taylor and Francis, 1993.
47.
FuQFYangLJQuYY, et al. Linear stability analysis of a conical liquid sheet. J Propul Power2010; 26: 955–968.
48.
InamuraTTamuraHSakamotoH.Characteristics of liquid film and spray injected from swirl coaxial injector. J Propul Power2003; 19: 632–639.
49.
InamuraTMiyataKTamuraH, et al. Spray characteristics of swirl coaxial injector and its modeling. In: 37th joint propulsion conference and exhibit, 2001, p.3570). Salt Lake City, Utah, U.S.A., AIAA.
50.
DombrowskiNHooperPC.The effect of ambient density on drop formation in sprays. Chem Eng Sci1962; 17: 291–305.
51.
KimDHanPYoonY. Effect of flow condition and geometry on flow characteristics of a swirl injector. In: ILASS Americas, 16th annual conference on liquid atomization and spray systems, Monterey, CA, May 2003.
52.
RadcliffeA. Fuel injection. In: High speed aerodynamics, and jet propulsion. 1960, p.11. Edited by William R. Hawthorne and Walter T. Olson, New Jersey, U.S.A., Princeton University Press.
53.
JasujaAK.Atomization of crude and residual fuel oils. J Eng Power1979; 101: 250–258.
BallesterJDopazoC.Drop size measurements in heavy oil sprays from pressure-swirl nozzles. Atomization Sprays1996; 6: 377–408.
56.
BabuKRNarasimhanMVNarayanaswamyK.Prediction of mean drop size of fuel sprays from swirl spray atomizers. IJTJE1989; 6: 133–141.
57.
KennedyJB.High weber number SMD correlations for pressure atomizers. J Eng Gas Turbines Power1986; 108: 191–195.
58.
WangXFLefebvreAH.Mean drop sizes from pressure-swirl nozzles. J Propul Power1987; 3: 11–18.
59.
van BanningDHCVan der GeldCWMBroosPJC, et al. An assessment of nozzles for steam attemperation. Exp Therm Fluid Sci2014; 55: 86–94.
60.
LiuJZhangXQLiQL, et al.Effect of geometric parameters on the spray cone angle in the pressure swirl injector. Proc IMechE, Part G: J Aerospace Engineering2013; 227: 342–353.
61.
DavanlouALeeJDBasuS, et al. Effect of viscosity and surface tension on breakup and coalescence of bicomponent sprays. Chem Eng Sci2015; 131: 243–255.
62.
XiaoWHuangY.Improved semiempirical correlation to predict sauter mean diameter for pressure-swirl atomizers. J Propul Power2014; 30: 1628–1635.
63.
SquireHB.Investigation of the instability of a moving liquid film. Br J Appl Phys1953; 4: 167–169.
64.
DombrowskiNJohnsWR.The aerodynamic instability and disintegration of viscous liquid sheets. Chem Eng Sci1963; 18: 203–214.
65.
ChuCCChouSFLinHILiannYH.Theoretical analysis of heat and mass transfer in swirl atomizers. Heat Mass Transfer2007; 43: 1213–1224.
66.
CoutoHSCarvalhoJAJrandBastos-NettoD.Theoretical formulation for sauter mean diameter of pressure-swirl atomizers. J Propul Power1997; 13: 691–696.
67.
MoonYKimDYoonY.Improved spray model for viscous annular sheets in a swirl injector. J Propul Power2010; 26: 267–279.
