Experimental Analysis of Gaseous Emission in 2-Stroke Single Cylinder Engine Using Ethanol Gasoline Blends

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International Journal of Research and Innovation in Applied Science (IJRIAS) |Volume VIII, Issue IV, April 2023|ISSN 2454-6194

Experimental Analysis of Gaseous Emission in 2-Stroke Single Cylinder Engine Using Ethanol Gasoline Blends

Nwafor Uzoma and Mohammed Moore Ojapah*
Mechanical Engineering Department, Faculty of Engineering, University of Port Harcourt Nigeria
*Corresponding Author
DOI: https://doi.org/10.51584/IJRIAS.2023.8414
Received: 04 April 2023; Accepted: 26 April 2023; Published: 03 May 2023

IJRISS Call for paper

Abstract: The emission of Unburnt Hydrocarbon (UHC), Oxides of Nitrogen (NOx), Carbon Monoxide (CO), and Carbon Dioxide (CO2) from internal combustion engine have been seen to cause negative environmental impact and a major source of greenhouse effect. This paper provides a better understanding and strategies for use of biofuel ethanol as a blend with gasoline to reduce emissions in 2-stroke engine small power generaor. An experimental study on a single cylinder domestic portable power generating set of fixed speed has been used with gasoline ethanol blends in ratio of 100% gasoline (E0), 50% gasoline ethanol blends (E50) and 100% ethanol (E100) under varying engine loads. The results showed that the CO and HC emission decreases as a result of the leaning effect caused by the ethanol addition. The CO2 emission was also observed to increase because of the improved combustion as a result of leaning effect of ethanol addition, in particular the E100. The NOx emission for E100 shows the most interesting result of decreasing from idle load to zero at the maximum load.

Keywords: 2-Stroke; ICE; Ethanol; Gaseous Emission; Gasoline

I. Introduction

The increasing demand for energy in the world had led to increase in the consumption of fuels. As a result, access to the conventional fossil fuels is becoming more and more difficult and expensive, and it is also limited in availability. Apart from economic aspects, the main problem is that fossil fuels are non-renewable and have generated great concern globally about its contribution to local emissions and global warming. The global interest in alternative energy or renewable energy sources is due to the mentioned problems in addition to the environmental issues of fossil fuels. Alternative energy is basically a type of energy produced from a source other than conventional fossil fuels, such as, oil, natural gas, and coal. According to the International Energy Agency’s (IEA) world energy outlook [1], the total energy consumption in the world will increase by a rate of 1.5% per year until 2030. Fossil fuels such as coal, oil and gas produce huge amounts of CO2 during combustion