Hudson, Scott, Stubbs, Chris and Weston, William (2012) The Effect on Emissions of using Alternative Fuels in Turbo-Charged Diesel Engines. In: International Conference on Renewable Energies and Power Quality (ICREPQ'12), 28th - 30th March 2012, Santiago de Compostela, Galicia.

The paper outlines the Emissions and Biofuel Directives relating to CO2 emissions in cars and the fiscal penalties incurred by manufacturers failing to meet targets.
The effect on emissions of the biofuel directives are quantified through a test programme which measures emissions from a turbo-charged diesel engines using a range of biodieel fuels, using standard diesel fuel to obtain a comparison. The tests measure O2, NOx, THC and CO emissions as well as CO2.
The results are difficult to quantify but, with the exception of corn oil show an increase in in CO2 emissions. Corn oil also shows a reduction in other emissions.
The discussion considers other mechanisms which can reduce overall global emissions including range extenders for electric vehicles.

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