Measurement of soot distribution in two cross-sections in a gasoline direct injection engine using laser-induced incandescence with the laser extinction method

Abstract

An approach based on regression was developed to reveal the soot volume fraction (SVF) distribution of a horizontal cross-section in an optically accessible gasoline direct injection engine, based on the quantitative data in vertical images from planar laser-induced incandescence, which was calibrated by the laser extinction method (LEM). The approach used the matching of the corresponding pixels in the vertical and the horizontal images to solve the problem of visible range that limited the use of the LEM in measuring SVFs of the horizontal plane. Local SVFs of as low as 0.05 ppm can be detected. Analysis of both the horizontal and vertical image results showed that the case of ϕ_a = 0.7 (equivalent air–fuel ratio) resulted in significantly rich soot regions with a peak SVF approximately three times higher than that of the case with ϕ_a = 0.8.

Keywords

Gasoline direct injection engine soot planar laser-induced incandescence laser extinction method regression

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References

Wang

et al . Fuel injector deposits in direct-injection spark-ignition engines. Prog Energy Combust Sci 2015; 50: 63–80.

Wang

Liu

et al . Homogeneous charge compression ignition (HCCI) combustion of polyoxymethylene dimethyl ethers (PODE). Fuel 2016; 183: 206–213.

Takahashi

Nakata

Yoshihara

et al . Combustion development to achieve engine thermal efficiency of 40% for hybrid vehicles. SAE paper 2015-01-1254, 2015.

Takahashi

Nakata

Yoshihara

et al . Combustion development to realize high thermal efficiency engines. SAE paper 2016-01-0693, 2016.

Guo

et al . Effect of flash boiling on microscopic and macroscopic spray characteristics in optical GDI engine. Fuel 2017; 190: 79–89.

Wang

Guo

Wang

et al . Microscopic level study on the spray impingement process and characteristics. Appl Energ 2017; 197: 114–123.

Guo

Ding

et al . Comparison of spray collapses at elevated ambient pressure and flash boiling conditions using multi-hole gasoline direct injector. Fuel 2017; 199: 125–134.

Zhang

et al . Non-volatile particle characteristics of a light-duty diesel engine with pilot injections and exhaust gas recirculation. Proc IMechE Part D J Automob Eng 2013; 227: 1173–1186.

Zhang

et al . Particulate matter characteristics of a light-duty diesel engine with alternative fuel blends. Proc IMechE Part D J Automob Eng 2014; 228: 1516–1529.

10.

Zhang

et al . Throttleless and EGR-controlled stoichiometric combustion in a diesel-gasoline dual-fuel compression ignition engine. Fuel 2014; 115: 765–777.

11.

et al . Optical study of throttleless and EGR-controlled stoichiometric dual-fuel compression ignition combustion. Fuel 2016; 182: 272–283.

12.

Zhang

Lin

et al . A review on laser diagnostics on atomization and evaporation of liquid fuel. In: Proceedings of SPIE 9232, international conference on optical particle characterization (ed Nobuhiro

), Tokyo, Japan, August 2014, paper no.923202, pp.1–6, Bellingham WA: SPIE.

13.

Wang

et al . Co-evaporative multi-component fuel design for in-cylinder PLIF measurement and application in gasoline direct injection research. Appl Energy 2011; 88: 2617–2627.

14.

Schulz

Kock

Hofmann

et al . Laser-induced incandescence: recent trends and current questions. Appl Phys B 2006; 83: 333–354.

15.

Guo

et al . Droplet dynamics of DI spray from sub-atmospheric to elevated ambient pressure. Fuel 2016; 179: 25–35.

16.

Zhang

Rao

et al . The development of hydroxyl and soot in a methyl decanoate-fuelled automotive-size optical diesel engine. Fuel 2016; 166: 320–332.

17.

Kimura

Aoki

Kitahara

et al . Ultra-clean combustion technology combining a low-temperature and premixed combustion concept for meeting future emission standards. SAE paper 2001-01-0200, 2001.

18.

Noehre

Andersson

Johansson

et al . Characterization of partially premixed combustion. SAE paper 2006-01-3412, 2006.

19.

Hasegawa

Yanagihara

HCCI combustion in DI diesel engine. SAE paper 2003-01-0745, 2003.

20.

Hertler

Stirn

Arndt

et al . Investigations of soot formation in an optically accessible gasoline direct injection engine by means of laser-induced incandescence (LII). Appl Phys B 2011; 104: 399–407.

21.

Block

Oppermann

Budack

Luminosity and laser-induced incandescence investigations on a DI gasoline engine. SAE paper 2000-01-2903, 2000.

22.

Goldlucke

Seelig

Ipp

et al . Investigation of in-cylinder soot formation and exhaust soot emission of a direct injection SI engine by laser-induced incandescence (LII). In: Proceeding of the 6th international symposium on diagnostics and modeling of combustion in internal combustion engines (ed Daisho

), Yokohama, Japan, August 2–5, 2004, paper no.B8-2, pp.369–376, Tokyo: The Japan Society of Mechanical Engineers.

23.

Michelsen

Schulz

Smallwood

et al . Laser-induced incandescence: particulate diagnostics for combustion, atmospheric, and industrial applications. Prog Energy Combust Sci 2015; 51: 2–48.

24.

Snelling

Smallwood

Liu

et al . A calibration-independent laser-induced incandescence technique for soot measurement by detecting absolute light intensity. Appl Opt 2005; 44: 6773–6785.

25.

Boiarciuc

Foucher

Mounaim-Rousselle

et al . Estimate measurement of soot diameter and volume fraction inside the bowl of a direct-injection-compression-ignition engine: effect of the exhaust gas recirculation. Combust Sci Technol 2007; 179: 1631–1648.

26.

Kook

Pickett

LM.

Soot volume fraction and morphology of conventional, Fischer-Tropsch, coal-derived, and surrogate fuel at diesel conditions. SAE Int J Fuels Lubr 2012; 5: 647–664.

27.

Naccarato

Potenza

De Risi

Simultaneous LII and TC optical correction of a low-sooting LPG diffusion flame. Measurement 2014; 47: 989–1000.

28.

Kook

Pickett

LM.

Effect of fuel volatility and ignition quality on combustion and soot formation at fixed premixing conditions. SAE Int J Engines 2009; 2: 11–23.

29.

Nerva

Genzale

Kook

et al . Fundamental spray and combustion measurements of soy methyl-ester biodiesel. Int J Engine Res 2013; 14: 373–390.

30.

Cenker

Bruneaux

Pickett

et al . Study of soot formation and oxidation in the engine combustion network (ECN), Spray A: effects of ambient temperature and oxygen concentration. SAE Int J Engines 2013; 6: 352–365.

31.

Pires

Cruz

Dumas

Bruneaux

Two-dimensional in-cylinder soot volume fractions in diesel low temperature combustion mode. SAE Int J Engines 2011; 4: 2023–2047.

32.

Velji

Yeom

Wagner

et al . Investigations of the formation and oxidation of soot inside a direct injection spark ignition engine using advanced laser-techniques. SAE paper 2010-01-0352, 2010.

33.

Zheng

Wang

et al . An optical study on liquid-phase penetration, flame lift-off location and soot volume fraction distribution of gasoline-diesel blends in a constant volume vessel. Fuel 2015; 139: 365–373.

34.

Wiltafsky

Stolz

Köhler

et al . The quantification of laser-induced incandescence (LII) for planar time resolved measurements of the soot volume fraction in a combusting diesel jet. SAE paper 961200, 1996.

35.

Pastor

García-Oliver

García

et al . Application of optical diagnostics to the quantification of soot in n-alkane flames under diesel conditions. Combust Flame 2016; 164: 212–223.

36.

De Francqueville

Bruneaux

Thirouard

. Soot volume fraction measurements in a gasoline direct injection engine by combined laser induced incandescence and laser extinction method. SAE Int J Engines 2010; 3: 163–182.

37.

Storch

Koegl

Altenhoff

et al . Investigation of soot formation of spark-ignited ethanol-blended gasoline sprays with single- and multi-component base fuels. Appl Energy 2016; 181: 278–287.

38.

Storch

Hinrichsen

Wensing

et al . The effect of ethanol blending on mixture formation, combustion and soot emission studied in an optical DISI engine. Appl Energy 2015; 156: 783–792.

39.

Storch

Zigan

Wensing

et al . Systematic investigation of the influence of ethanol blending on sooting combustion in DISI engines using high-speed imaging and LII. SAE paper 2014-01-2617, 2014.

40.

Catapano

Di Iorio

Lazzaro

et al . Characterization of ethanol blends combustion processes and soot formation in a GDI optical engine. SAE paper 2013-01-1316, 2013.

41.

Musculus

MPB

Pickett

. Diagnostic considerations for optical laser-extinction measurements of soot in high-pressure transient combustion environments. Combust Flame 2005; 141: 371–391.

42.

Zhao

Ladommatos

Optical diagnostics for soot and temperature measurement in diesel engines. Prog Energy Combust Sci 1998; 24: 221–255.

43.

Williams

Shaddix

Jensen

et al . Measurement of the dimensionless extinction coefficient of soot within laminar diffusion flames. Int J Heat Mass Transfer 2007; 50: 1616–1630.

44.

et al . Investigation of soot formation in laminar diesel diffusion flame by two-color laser induced incandescence. SAE paper 2008-01-1064, 2008.