Browse Publications Technical Papers 2001-01-1835
2001-12-01

EFFECT OF FUEL AND CATALYTIC CONVERTER ON EMISSIONS FROM SMALL TWO-STROKE ENGINE 2001-01-1835

The effect of fuel and catalytic converter on emissions from a small 2-stroke engine was studied in this work. These measurements were made at Agrifood Research Finland, Agricultural Engineering Research (MTT/Vakola) and they are a part of the national Promotor -research program. The Promotor-program (http://www.vtt.fi/virtual/promotor/) is a co-ordinated research effort on the development of fuels; internal combustion engines and exhausts treatment. Other participants of this “Reduction of emissions from small engines” -project are: The Laboratory for Atmospheric Physics and Chemistry at the University of Kuopio, Kemira Metalkat Oy, Fortum Oil and Gas Oy and Oulu Regional Institute of Occupational Health.
Measurements were made in laboratory conditions with a 45 cm3 engine. Three different fuels and one catalytic converter were used. Three different air-fuel ratios were used approximately from λ=0,75 to λ=0,92. Regulated emissions were measured. In addition the effect of the amount of 2-stroke oil was briefly investigated.
Fuel has an effect on HC, NOx and PM emissions. Catalytic converter has a similar effect on emissions.

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