Impact of Zero CO ₂ Fuels on Engine Behaviour of Two-Stroke Engines in Hand-Held Powertools

One possible path to reduce the CO₂ emissions of hand-held power tools are fuels with different amount of renewable content. Within this paper test bench measurements on a small two-stroke engine were carried out. We are trying to reduce CO₂ emissions by using fuels which absorbed CO₂ from the air during its lifetime or production, so called Zero CO₂ fuels The focus was set on the investigation of combustion behaviour, performance and emissions of Zero CO₂ fuels in comparison to commonly available fuels. For our measurements we chose a 46 cc serial engine, which was slightly modified for scientific research. This paper shows findings on effects of renewable fuels on engine characteristics. Additionally, the chemical properties of each fuel were investigated in order to form a comprehensive picture, together with the performed dyno measurements.