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http://dx.doi.org/10.15435/JILASSKR.2011.16.3.146

Icing Characteristics of Liquid Phase LPG Injection According to Butane and Propane Mixing Rates  

Kim, Yung-Jin (한양대학교 대학원)
Cho, Won-Joon (한양대학교 대학원)
Lee, Ki-Hyung (한양대학교 기계공학과)
Publication Information
Journal of ILASS-Korea / v.16, no.3, 2011 , pp. 146-151 More about this Journal
Abstract
LPG(Liquified Petroleum Gas) fuel for vehicles has lots of advantages such as low emission level, cheaper fuel cost and enough infrastructure. Therefore it arouses interest as an alternative engine to reduce emission of diesel engines. Especially MPI(Multi Point Injection) type LPLi(Liquid Phase LPG injection) system could have overcome the disadvantages of mixer types such as low engine performance, decreased charging efficiency and cold starting difficulty. However ice formation on the nozzle tip and intake port due to the freezing of moisture around the components is often observed in LPLi systems. This icing phenomenon is the direct cause of unstable engine combustion, resulting in engine emissions. Therefore in this research, a spray visualization test for LPG injection was carried out to obtain the basic information of an LPLi injector, then the effects of butane and propane mixing rates on ice formation at the intake port and nozzle tip was investigated. As a result, the icing characteristics of them showed contrary results according to the mixing rates.
Keywords
LPG; LPG Injection; LPLi Injector; LPLi; LPGIcing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Koichiro Nakatani, Shinya Hirota, Shinichi Takeshima, Kazuhiro Itoh and Toshiaki Tanaka, "Simultaneous PM and NOx Reduction System for Diesel Engine", SAE Paper No. 2002-01-0957, 2002.
2 Yoshio Sato and Yuichi Goto, "Research Trends in Power Systems using Alternative Fuels", IWPS2000, September 27-30, Tokyo, Japan, 2000.
3 Gyeung Ho Choi, Jin Ho Kim, Ung Lae Cho and Sung Bin Han, "Engine Performance and Emissions Characteristics in an LPG Engine Converted with Mixer and LPi System Fuel Supply Methods", KSME, Series B, Vol. 28, No. 9, 2004, pp. 1075-1080.
4 Wooseok Kim, Jonghwa Lee and Changhyun Jang, "A Study on the Combustion Characteristics and the Control on the Fuel Flow Rate of LPG Intake Port Injection Engine", Transactions of KSAE, Vol. 8, No. 6, 2000, pp. 31-39.
5 Kernyong Kang, Daeyup Lee, Seungmook Oh and Changup Kim, "A Fundamental Study on a MPI LPG Engine for Heavy Duty Vehicles", SAE Paper No. 2001-02-1958, 2001.
6 Jungcheol Park, Wooseok Kim, Jonghwa Lee, Byungohk Lee and Koungseok Park, "Visualization of the Icing at LPLi Engine Injector and the Effect of the Inflow of Ice Particle into Cylinder on the Combustion and the Exhaust Gas", Transactions of KSAE, Vol. 12, No. 2, 2004, pp. 39-44.
7 Jungseo Park, Kitae Yeom, Jinyoung Jang, Seoksu Moon, Choongsik Bae, Jeongnam Park and Sungkun Kim, "A De-Icing Method for LPG Liquid Phase Injection", KSAE Autumn conference, 2006, pp. 1817-1822.
8 Cheolwoong Park, Changup Kim, Kyonam Choi and Kernyong Kang, "Characteristics of Droplet and Icing Formation of an Injector for Liquid Phase LPG Injection System", SAE Paper No. 2007-01-2050, 2007.
9 Akira Shoji, Shinji Kamoshita, Tetsu Watanabe and Toshiaki Tanaka, "Development of a Simultaneous Reduction System of NOx and Particulate Matter for Light-Duty Truck", SAE Paper No. 2004-01-0579, 2004.