100% LPG long haul truck conversion - economy and environmental benefits

Parker, A and Grummish, C 2012, '100% LPG long haul truck conversion - economy and environmental benefits', in Proceedings of SAE 2012 Commercial Vehicle Engineering Congress, Rosemont, Illinois, USA, 2-3 October 2012, pp. 1-12.


Document type: Conference Paper
Collection: Conference Papers

Title 100% LPG long haul truck conversion - economy and environmental benefits
Author(s) Parker, A
Grummish, C
Year 2012
Conference name SAE 2012 Commercial Vehicle Engineering Congress
Conference location Rosemont, Illinois, USA
Conference dates 2-3 October 2012
Proceedings title Proceedings of SAE 2012 Commercial Vehicle Engineering Congress
Publisher SAE International
Place of publication USA
Start page 1
End page 12
Total pages 12
Abstract Advanced Vehicle Technologies (AVT), a Ballarat Australia based company, has developed the World's first diesel to 100% LPG conversion for heavy haul trucks. There is no diesel required or utilized on the trucks. The engine is converted with minimal changes into a spark ignition engine with equivalent power and torque of the diesel. The patented technology is now deployed in 2 Mercedes Actros trucks. The power output in engine dynamometer testing exceeds that of the diesel (in excess of 370 kW power and 2700 Nm torque). In on-road application the power curve is matched to the diesel specifications to avoid potential downstream power-train stress. Testing at the Department of Transport Energy & Infrastructure, Regency Park, SA have shown the Euro 3 truck converted to LPG is between Euro 4 and Euro 5 NOx levels, CO2 levels 10% better than diesel on DT80 test and about even with diesel on CUEDC tests. The average fuel ratio of LPG tests versus diesel tests over 7 points from 80 kW to 180 kW is 1.67:1. The conversion is already operational in fleets. The conversion to LPG permits a better economy, a better environment and a better energy security. The truck conversion permits lower operating cost and significantly reduced fuel cost. The LPG has a lower fuel cost per unit energy. The savings are almost $300 per 1000 km. These fuel costs are based on an average wholesale price including rebates over the past 6 months of $0.51/L LPG and $1.46/L diesel. Longer maintenance intervals also permit lower cost and less downtime. The LPG has significant emissions reduction. The reduced carbon dioxide and particulate matter emissions are a result of the gaseous state and the better C/H ratio of the LPG. The CO2-e advantage of the LPG engine is greater than the tailpipe 10%. There is almost no particulate matter with LPG. The goal is to achieve Euro 5 (with the Euro 3 engine) in 1st half 2012 with no catalytic converter or urea filter.
Subjects Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
DOI - identifier 10.4271/2012-01-1983
Copyright notice © 2012 SAE International
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