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Abstract
Glancey
, J.L., A.E.M. Chirnside, J. Hummel,
S. Nobles, S. Chanpimol and A. Raval. 2007.
Bio-fuel emission measurements and potential environmental implications for
the Mid-Atlantic region. JEMREST 3:158-166.
DOI: 10.4029/2007jemrest3no126
In this
study, the transient smoke emissions characteristics of three fuels were
examined: an E-Diesel fuel (O2Diesel™: 7.7vol% biomass-derived fuel
grade ethanol (ASTM D 4806), 0.6vol% proprietary co-solvent additive, and
91.7vol% no.2 diesel (ASTM D 975)), a B20 soy-diesel blend, and a
conventional no. 2 diesel on-road fuel. Measurements of smoke emissions using
each fuel in two commercial vehicles were made with a light extinction
opacity meter and the SAE J1667 snap acceleration test method. Emission
opacity from each engine was significantly reduced (p<0.05) with both the
e-diesel and soy-diesel blends compared to No. 2 on-road diesel. In addition,
opacity was significantly lower in both engines with the e-diesel blend
compared to soy-diesel. Overall, relative to conventional petroleum diesel
fuel, smoke emissions were reduced by 9% and 32% using the soy-diesel and
e-diesel fuels, respectively. These results indicate that as part of a
comprehensive air quality improvement program for the Mid-Atlantic region,
e-diesel blends can provide significantly more emission reductions than
biodiesel blends in diesel powered engines for both on- and off-road vehicles
and power units.
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