Title:
Impact of ETBE Fraction in Diesel Oil on Combustion Process and Smoke Emission
Author(s):
Górski, K., Šmigins, R.
Document(s):
Paper
Abstract:
In this paper we would like to present selected results of our research carried out with use of a Perkins AD3.152 diesel engine fueled with diesel oil (DO) with addition of ethyl tert¬butyl ether (ETBE). Tested blends were composed by mixing of diesel oil with ETBE in ratio of: 10, 20, 30 and 40% by volume. Results of our tests confirm, that decreasing cetane number (CN) of diesel¬ETBE blends increase the value of self¬ignition delay period. It affects on "harder work" of tested engine. It means, that maximum combustion pressure rise rates are higher for an engine fueled with diesel¬ETBE blends when compare to diesel oil. Also, we found that maximum rate of in¬cylinder pressure rise are related with the value of knock amplitude. Engine knock is higher with increasing content of ETBE in mixture with diesel fuel. On the other hand, increasing the ETBE fraction in the diesel helps to suppress the smoke emission and engine overall efficiency is also improved. ETBE may be blended with diesel fuel in any ratios, and such mixtures are stable in wide range of temperature variations. For this reason diesel¬ ETBE blends seems to be better alternative fuel for diesel engines than diesel¬ ethanol mixtures which stability is strongly affected by temperature variations and the presence of water in the fuel.
Keywords:
alternative fuel, combustion, emissions, diesel, ethyl tertiary butyl ether (ETBE)
Topic:
Industrial Demonstration and Business Concepts
Subtopic:
Biofuels for transport
Event:
20th European Biomass Conference and Exhibition
Session:
4BV.4.10
Pages:
1937 - 1943
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-4BV.4.10
Price:
FREE
