Pulp and paper industry

Four-stroke engine

Automotive engineering

Engineering

Spark-ignition engine

Power (physics)

Waste management

Environmental science

Ethanol

Thermodynamics

Ethanol fuel

Alcohol fuel

Octane rating

Organic chemistry

Engine power

Thermal efficiency

Biofuel

Naturally aspirated engine

Exhaust gas recirculation

Gasoline

Combustion

Chemistry

Materials science

Exhaust gas

Combustion chamber

Physics

Internal combustion engine

Case Studies in Thermal Engineering

Negative effects of using traditional engine fuels on climate change and global warning have produced a scenario of high competition to find an alternative fuel more friendly and unharmful to the environment. Alcohol fuel was found very practical to be mixed with engine designed fuel. In the present work, ethanol was mixed with gasoline in different proportions (10% ethanol + 90% gasoline, 20% ethanol + 80% gasoline, 30% ethanol +70% gasoline, 40% ethanol + 60% gasoline) by utilizing ultrasonic bath to ensure perfect mixing which in turn will increase the fuel energy content. A one-cylinder, four-stroke and spark ignition engine was used to study and analyze the effect of ethanol's/gasoline blend on power, efficiency and exhaust gases. Results showed that power, brake specific fuel consumption and thermal efficiency are improved with the increase of ethanol concentration. On the other hand, ethanol was found to have negative effect on volumetric efficiency. Furthermore, adding ethanol reduce harmful exhaust g...

Effect of ethanol-gasoline blends on SI engine performance and emissions