Abstract
Diesel Powered engines are predominately used in transport and power generators. Due to rapid depletion of fossils fuels like diesel, there is need to find alternate resources for as a fuel for transport and power sector. The use of third generation fuels like algae seems to be a promising solution to satisfy our energy demands in future. In these work algae is used as an alternative fuel with different blend combination with diesel and the results obtained are summarized. Algae fuel is blended with diesel on a volume basis, namely A10, A20, A30, A40 and A100 and made to run in diesel engines. The properties of the fuels were found according to American Society for Testing and Materials standards. Experimental testing was carried out in a single cylinder direct injection diesel engine. Among the various blends tested A20 shows closer estimation with diesel results in higher thermal efficiency lower HC, CO, Smoke and particulate matter emissions. However, the other emissions like Nitrous oxide and carbon dioxide were shown marginally higher. Regarding cylinder pressure and heat release rate curves, the peak value obtained is considerably lower at higher load condition while compared with diesel.
Highlights
Energy demand is rapidly increasing day by day in the world and it is expected to increase about 60% by the year 2035 (Outlook, 2010; Chen et al, 2011; Karavalakis et al, 2009)
The results reveals that 67% of fatty acid methyl ester for 20 min reaction time at 265 ◦C was obtained and 1:9 dry algae to ethanol ratio
They found the optimum conditions for maximum yield of biodiesel about 75% were 90 min reaction time, 55 ◦C reaction temperature,1:4 algae biomass ratio at 450 rpm string intensity (Nautiyal et al, 2014)
Summary
Energy demand is rapidly increasing day by day in the world and it is expected to increase about 60% by the year 2035 (Outlook, 2010; Chen et al, 2011; Karavalakis et al, 2009). In another work feedstock extracted from Spirulina platensis algae biomass using transesterification process was carried out They found the optimum conditions for maximum yield of biodiesel about 75% were 90 min reaction time, 55 ◦C reaction temperature,1:4 algae biomass ratio at 450 rpm string intensity (Nautiyal et al, 2014). In another work author extracted algae oil from Isochrysis galbana micro algae biospecies and they evaluated the physical and chemical properties of the oil They estimated most suitable condition to estimate maximum yield are 30 min reaction time at 65 ◦C reaction temperature with NaOH as catalyst,12: 1 methanol to oil molar mass (Silitonga et al, 2017). Further Experimental studies were carried out to evaluate its performance, Combustion and emission characteristics of the obtained fuel
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