PARTICLE NUMBER IN SMALL SI ENGINE USING GASOLINE AND LPG AS FUEL FOR NON-ROAD VEHICLE

다국어 초록 (Multilingual Abstract)

This study measured the particle number (PN) emissions from spark ignition (SI) engines according to the use of gasoline fuel and liquefied petroleum gas (LPG) fuel for particles greater than 23 nm or 5 nm. A 0.8-L two-cylinder gasoline engine, which has variable valve timing system and electronic control unit, was used in the experiment. The engine was operated at 1500 rpm, 3000 rpm, low load, and high load, and the fuel injection timing, intake valve opening timing, exhaust valve closing timing, and valve overlap period were used as variables in the experiment. According to the experimental results, the gasoline engine emitted particulate matter (PM) is in the range of 1 × 109 to 3 × 1013 #/kWh, whereas that of the LPG engine is in the range of 1 × 109 to 1 × 1011 #/kWh. For the LPG engine, the operating conditions and experimental variables had minimal influence on the PN, whereas for the gasoline engine, the experimental conditions and experimental variables had a significant influence on the PN. For this test engine, the ratio of PM smaller than 23 nm increased as the emissions of PM larger than 23 nm decreased, which were observed for values between 1 × 1010 #/kWh and 1 × 1011 #/kWh.

참고문헌 (Reference)

1 Wichmann, H. E, "Ultrafine Particles in the Atmosphere" Imperial College Press 2003

2 Zhao, F. Q., "The spray characteristics of automotive port fuel injection-a critical review" 399-432, 1995

3 McGee, J., "The effects of port fuel injection timing and targeting on fuel preparation relative to a pre-vaporized system" 2438-2449, 2000

4 Seo, J. M., "The best choice of gasoline/diesel particulate filter to meet future particulate matter regulation" SAE Technical 2012

5 Kosowski, M. G., "Soot formation in a multipointfuel-injected sprak-ignited engine" 786-796, 1985

6 Somers, C. M., "Reduction of particulate air pollution lowers the risk of heritable mutations in mice" 304 (304): 1008-1010, 2004

7 Desouza, C. D., "Real-world emissions from non-road mobile machinery in London" 223 : 117301-, 2020

8 Kontses, A., "Particle number (PN) emissions from gasoline, diesel, LPG, CNG and hybrid-electric light-duty vehicles under real-world driving conditions" 222 : 117126-, 2020

9 Giechaskiel, B., "Particle measurement programme (PMP) lightduty inter-laboratory exercise: Comparison of different particle number measurement systems" 9 (9): 095401-, 2008

10 Badshah, H., "Particle emissions from light-duty vehicles during cold-cold start" 9 (9): 1775-1785, 2016

11 Napolitano, P., "Particle emissions from a HD SI gas engine fueled with LPG and CNG" 269 : 117439-, 2020

12 Czerwinski, J., "Nanoparticle emissions of DI gasoline cars with/without GPF" SAE 2017

13 Myung, C. L., "Mobile source air toxic emissions from direct injection spark ignition gasoline and LPG passenger car under various in-use vehicle driving modes in Korea" 119 : 19-31, 2014

14 Giechaskiel, B., "Measurement of automotive nonvolatile particle number emissions within the European legislative framework: A review" 46 (46): 719-749, 2012

15 Tan, C., "Investigation of VVT and spark timing on combustion and particle emission from a GDI Engine during transient operation" SAE Technical 2014

16 Quader, A. A., "How injector, engine, and fuel variables impact smoke and hydrocarbon emissions with port fuel injection" 327-349, 1989

17 Joshi, A, "Gasoline particulate filters – A review" 4 (4): 219-239, 2018

18 Rossomando, B., "Experimental characterization of ultrafine particle emissions from a light-duty diesel engine equipped with a standard DPF" 38 (38): 5695-5702, 2021

19 Giechaskiel, B., "European regulatory framework and particulate matter emissions of gasoline light-duty vehicles: A review" 9 (9): 586-, 2019

20 Kittelson, D. B., "Engines and nanoparticles: A review" 29 (29): 575-588, 1998

21 Kim, T. Y., "Effects of shape and surface roughness on icing and condensation characteristics of an injector in a liquid phase LPG injection system" 132 : 82-92, 2014

22 Calcote, H. F, "Effect of molecular structure on incipient soot formation" 49 (49): 289-304, 1983

23 Costanzo, V. S, "Effect of in-cylinder liquid fuel films on engine-out unburned hydrocarbon emissions for an SI engine" SAE 2012

24 백승하 ; 조재호 ; 김강진 ; 안승호 ; 명차리 ; 박심수, "EFFECT OF THE METAL-FOAM GASOLINE PARTICULATE FILTER (GPF) ON THE VEHICLE PERFORMANCE IN A TURBOCHARGED GASOLINE DIRECT INJECTION VEHICLE OVER FTP-75" 한국자동차공학회 21 (21): 1139-1147, 2020

25 Ceviz, M. A, "Cyclic variations on LPG and gasoline-fuelled lean burn SI engine" 31 (31): 1950-1960, 2006

26 Myung, C. L., "Comparative study of regulated and unregulated toxic emissions characteristics from a spark ignition direct injection light-duty vehicle fueled with gasoline and liquid phase LPG (liquefied petroleum gas)" 44 (44): 189-196, 2012

27 Bahreini, R., "Characterizing emissions and optical properties of particulate matter from PFI and GDI light-duty gasoline vehicles" 90 : 144-153, 2015

28 Andersson, J., "AECC/Concawe 2016 GPF RDE PN test programme: PN measurement above and below 23nm" 2016

29 Çinar, C, "A comparison of performance and exhaust emissions with different valve lift profiles between gasoline and LPG fuels in a SI engine" 107 : 1261-1268, 2016