Abstract
The novel garcinia gummi-gutta seed is used for extraction of biodiesel using transesterification process. The impact of diethyl ether (DEE) in biodiesel on the fuel properties was examined. The performance and emission characteristics of six fuels (B20DEE10, B30DEE10, B40DEE10, B100, B100DEE10 and D100) are tested on diesel engine from no-load to full load conditions. The addition of 10% diethyl ether to 20% biodiesel (B20) closely resemble the fuel properties of diesel fuel (D100) compared to other tested biodiesel blends. The performance parameters (brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE)) and emission characteristics (carbon monoxide (CO), nitrous oxide (NOx) and hydrocarbon (HC)) are examined for six fuels at different engine load conditions. BSFC of all biodiesel showed comparatively higher value to that of diesel fuel at all engine loading conditions. BTE of diesel fuel showed higher values compared to other biofuels. Biodiesel blends resulted in reduced carbon monoxide and hydrocarbon emissions compared to diesel fuel. NOx emissions are higher for biodiesel and its blends compared to diesel fuel at all loads. Addition of 10% diethyl ether to biodiesel (B100) fuel resulted in better performance and emission characteristics compared to B100 fuel tested at full load engine conditions.
Highlights
Ajith et al / EUROPEAN J SUSTAINAB DEV, 4(4), em0134In today’s 21st century, energy sector contributions are playing a major role in deciding the economic growth of many countries
Vegetable oils and their blends with diesel fuel resulted in approximately similar combustion characteristics, but are not been recommended for long term engine run efficiently (Agarwal et al, 2003)
The fuel properties such as density and viscosity decreases with the addition of 10% diethyl ether (i.e. B100DEE10) to biodiesel (B100) which facilitates better atomization in combustion chamber that resulted in 2.78% decrease in Brake specific fuel consumption (BSFC)
Summary
In today’s 21st century, energy sector (i.e. crude oil exporter) contributions are playing a major role in deciding the economic growth of many countries. Neat oil derived from feedstocks (i.e. seeds or vegetables or animal fats) possess various long-term problems (poor atomization, injector related parameters, ring sticking and so on) in diesel engines (Agarwal, 2005; Bora and Baruah, 2012; Chakraborty et al, 2009; Ramadhas et al, 2005; Sahoo et al, 2009) These problems are due to the inherent fuel properties (physical and combustion) such as low volatility, energy content and efficiency, and high viscosity, density and NOx emissions and so on (Arul Gnana Dhas et al, 2018; Devaraj et al, 2018). The overall uncertainty error values from the experiments and instruments errors are found to be less than 5%, which signifies the obtained experimental data is statistically significant
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