Influence of the compression ratio on the performance and emission characteristics of a vcr diesel engine fuelled with alcohol blended fuels | Zendy

Hasan Serin | Zendy; Şafak Yıldızhan | Zendy

Open Access

Influence of the compression ratio on the performance and emission characteristics of a vcr diesel engine fuelled with alcohol blended fuels

Author(s) -

Hasan Serin,

Şafak Yıldızhan

Publication year - 2017

Publication title -

european mechanical science

Language(s) - English

Resource type - Journals

ISSN - 2587-1110

DOI - 10.26701/ems.320255

Subject(s) - diesel fuel , brake specific fuel consumption , diesel engine , thermal efficiency , thrust specific fuel consumption , compression ratio , nox , carbureted compression ignition model engine , fuel efficiency , biodiesel , automotive engineering , winter diesel fuel , waste management , alcohol fuel , environmental science , diesel cycle , materials science , engineering , combustion , internal combustion engine , chemistry , organic chemistry , catalysis

The present study is an experimental study that investigates the performance and emission characteristics of a variable compression ratio (VCR) diesel engine when the engine is fuelled with diesel, biodiesel, and small amount of alcohol blended fuels. The experimental study was evaluated with a single cylinder, water cooled, multi fuel VCR diesel test engine. The experimental results showed that increasing compression ratio improves performance characteristics such as brake thermal efficiency and specific fuel consumption of the test engine for all test fuels. However, increasing compression ratio caused to increase of NOx and CO2 emissions. Blending alcohol with diesel fuel showed a slight decrement in the means of brake thermal efficiency and thus elevated specific fuel consumption values. The maximum increment of specific fuel consumption was measured as 0,34% for diesel-alcohol blends. But, blending alcohols with biodiesel fuel improved performance characteristics of the engine compared to diesel fuel up to 2,65%. Blending biodiesel with alcohols showed improvement in the means of NOx emissions up to 6,01%.

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