Reduction of nitrogen oxides (NOx) using liquefied petroleum gas (LPG) in spark ignition (SI) engine

Chan, Lai Kuan (2005) Reduction of nitrogen oxides (NOx) using liquefied petroleum gas (LPG) in spark ignition (SI) engine. [USQ Project]


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Conventional fuels such as gasoline and diesel are causing serious environmental
issues due to their high amount of pollutants. A study was conducted on the use of LPG in conventional two-stroke and fourstroke
gasoline engines. The engines were tested using LPG and
gasoline so that comparisons of the emissions of pollutant gases and engine
performance can be made. The results obtained are very encouraging in the
emission aspect. The average reduction of emission gases from the LPG fuel
system are 64% for NOx, 31% for CO2 and 57% for CO for the two-stroke
engine. The four-stroke engine achieved a reduction of 41% for NOx, 11% for
CO2 and 40% for CO. On the other hand, the LPG fuel system also delivered a
comparable torque and engine efficiency as compared to gasoline. The results of
this research show the high potential of LPG as an alternative fuel for spark ignition

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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering (Up to 30 Jun 2013)
Date Deposited: 11 Oct 2007 00:23
Last Modified: 02 Jul 2013 22:32
Uncontrolled Keywords: nitrogen oxides (NOx), liquefied petroleum gas (LPG), spark ignition (SI), carbon monoxide (CO), carbon dioxide (CO2), two-stroke engine, four-stroke engine
Fields of Research (2008): 09 Engineering > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified
09 Engineering > 0902 Automotive Engineering > 090201 Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
Fields of Research (2020): 40 ENGINEERING > 4017 Mechanical engineering > 401799 Mechanical engineering not elsewhere classified
40 ENGINEERING > 4002 Automotive engineering > 400201 Automotive combustion and fuel engineering

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