Abstract
The performance of a small, stationary internal combustion engine running on a large variety of blends of hydrogen and natural gas has been investigated. Adding hydrogen to natural gas has the effect of potentially reducing the emissions of carbon monoxide, carbon dioxide and hydrocarbons in a more or less proportional way, by replacing hydrocarbons in the fuel with hydrogen. The effect of the air-to-fuel ratio and the composition of the blend on the performance and the emissions of the engine have been studied. In the summer of 2006 similar experiments will be performed on a motor scooter, adapted to use blends of hydrogen and natural gas as a fuel. Results of this work will be presented at the FISITA 2006 congress.
Keywords:Hydrogen, Natural gas, Blends, Emissions, Experiments