Quantifying the effects of biodiesel blend ratio, at varying ambient temperatures, on vehicle performance and emissions

Christopher Bannister, J Gary Hawley, H Ali, Christopher Chuck, P Price

Research output: Contribution to conferencePaper

5 Citations (Scopus)

Abstract

A number of studies have been carried out examining the impact of biodiesel blend ratio on vehicle performance and emissions, however there is relatively little data available on the interaction between blend ratio and reduced ambient temperatures over the New European Drive Cycle (NEDC). This study examines the effects of increasing the blend ratio of Rapeseed Methyl Ester (RME) on the NEDC fuel consumption and tailpipe emissions of a vehicle equipped with a 2.0 litre common rail diesel engine, tested on a chassis dynamometer at ambient temperatures of 25, 10 & -5°C. This study found that under low temperature ambient conditions increasing blend ratios had a significant detrimental effect on vehicle particulate emissions reversing the benefits observed at higher ambient temperatures. Blend ratio was found to have minimal impact on hydrocarbon emissions regardless of ambient temperature while carbon monoxide and NOx emissions were found to increase by up to 20% and 5.5% respectively. Fuel consumption rose by 5% for a B50 blend - a larger than expected increase when considering differences in calorific values alone.
Original languageEnglish
Publication statusPublished - Jun 2009
EventSAE 2009 International Powertrains, Fuels & Lubricants Meeting - Florence, Italy
Duration: 15 Jun 200917 Jun 2009

Conference

ConferenceSAE 2009 International Powertrains, Fuels & Lubricants Meeting
CountryItaly
CityFlorence
Period15/06/0917/06/09

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    Bannister, C., Hawley, J. G., Ali, H., Chuck, C., & Price, P. (2009). Quantifying the effects of biodiesel blend ratio, at varying ambient temperatures, on vehicle performance and emissions. Paper presented at SAE 2009 International Powertrains, Fuels & Lubricants Meeting, Florence, Italy.