Portal de Periódicos da CAPES

Effect of E85 Fuel on Harmful Emissions - Škoda Fabia 1.2 HTP

2014; Estonian Agricultural University; Volume: 12; Issue: 2 Linguagem: Inglês

2228-4907

Jakub Čedík, Martin Pexa, Martin Kotek, J. Hromádko,

Technical Engine Diagnostics and Monitoring

This article deals with harmful emissions production by a spark ignition engine Skoda Fabia 1.2 HTP operating on E85 fuel. The measurement was performed on a test bench using a test cycle that simulates real traffic conditions. Three variants were chosen for burning E85 fuel and the first one was the usage of the E85 fuel without modifications of the engine control unit (variant 1 - E85), the second one was the usage of the E85 fuel with prolonged time of the injection by 28% (variant 2 - E85+) and the last third variant was reference fuel petrol Natural BA95 (variant 3 - N95) for comparison. The results of the measurement have shown that for the variant 1 - E85 there was a significant decrease in the emissions of CO and HC while increasing emissions of NO X especially at high load. For the variant 2 - E85+ there was a significant increase of the emissions of CO and HC, again especially at high load. Emissions of NO X have shown a decrease for this variant. CO 2 emissions were approximately on the same level for both variants (E85, E85+) in comparison with the variant 3 - N95.