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05/05/2011
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Lafarge says it is looking to cut its carbon footprint, with the introduction of new LPG dual fuel systems to its tipper truck fleet.
 John Dargie, head of distribution and transport for Lafarge Aggregates & Concrete UK, explains that the initiative follows the company's investment in nine new lighter vehicles that offer improved load potential, so reducing delivery movements and carbon output.
"We estimate the dual fuel system will offer an immediate saving of 10% on carbon emissions as well as a similar level in fuel costs, thanks to the introduction of an LPG tank," says Dargie.
"Clearly this makes sense from an economic and environmental perspective. Over the next 10 to 20 years, we will all need to look at alternative ways to fuel our fleet so this is a good start," he adds.
Lafarge is working with LPG fuel specialist Flogas and dual fuel engine systems firm G-volution. Initially, one truck is being fitted with the dual system, with a view to more vehicles being converted if the trial is successful.
Simon Pickess, commercial sales director at G-volution, explains that the company's dual fuel system uses an optimiser that delivers a matched mix of more than one fuel at the point of combustion, while maintaining OEM power and torque ratings.
"Our dual-fuel system is ideal for Lafarge and we have no doubt that it will help them to significantly reduce their carbon emissions," he says.
"As the fuels are combusted simultaneously, the optimiser continually adjusts the ratios when operating in dual-fuel mode," adds Pickess. "This ensures optimal operation at all times, with net fuel cost and carbon output savings virtually unaffected by changes in operational conditions, load or driver behaviour."
The G-volution optimiser was originally designed around the MAN D20 engine. However G-volution is currently developing systems for other OEMs.
While the system currently works with diesel and LPG, Pickess says he is confident that any future alternative fuel, such as bio-ethanol, bio-methane or hydrogen, could be accommodated.
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Author
Brian Tinham
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