Optimization of biodiesel production from Azolla pinnata: investigation of CI engine characteristics using nano dosed biodiesel

AbstractMicroalgae have been mentioned as a promising feedstock for biodiesel production. In this study, microalgae Chlorella vulgaris (MCV) was cultivated in a bioreactor with wastewater. After biodiesel production from MCV oil via transesterification reaction, chemical and physical properties of MCV methyl ester were evaluated with regular diesel and ASTM standard. Besides, engine performance and exhaust emissions of CI engine fuelled with the blends of diesel-biodiesel were measured. The GC-MS analysis showed that oleic and linoleic acids were the main fatty acid compounds in the MCV methyl ester. Engine test results revealed that the use of biodiesel had led to a major decrease in CO and HC emissions and a modest reduction in CO2 emissions, whereas there was a minor increase in NOx emissions. Furthermore, there was a slight decrease in the engine power and torque while a modest increase in brake specific fuel consumption which are acceptable due to exhaust emissions reduction. The experimental results illustrate considerable capabilities of applied MVC biodiesel as an alternative fuel in diesel engines to diminish the emissions.

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Process optimization for biodiesel production from sheep skin and its performance, emission and combustion characterization in CI engine

Energy ◽

10.1016/j.energy.2019.02.140 ◽

2019 ◽

Vol 174 ◽

pp. 54-68 ◽

Cited By ~ 21

Author(s):

J. Jayaprabakar ◽

S.S. Dawn ◽

A. Ranjan ◽

P. Priyadharsini ◽

R.J. George ◽

...

Keyword(s):

Process Optimization ◽

Biodiesel Production ◽

Ci Engine

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Biodiesel Production from Dairy Scum Oil by Using Heterogeneous Catalyst and its Performance Test on CI Engine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.813-814.810 ◽

2015 ◽

Vol 813-814 ◽

pp. 810-814

Author(s):

B.R. Omkaresh ◽

S.B. Arun ◽

R. Suresh ◽

K.V. Yathish

Keyword(s):

Fossil Fuels ◽

Performance Test ◽

Acid Methyl Ester ◽

Injection Pressure ◽

Biodiesel Production ◽

Oxides Of Nitrogen ◽

Gas Temperature ◽

Brake Power ◽

Ci Engine ◽

Exhaust Gas Temperature

Now a days increasing in prices and depletion of fossil fuels, creates very necessary to find out an alternative fuel (biodiesel) from renewable natural resources. This paper deals with the transesterification of animal fat (dairy scum oil) to obtain Fatty Acid Methyl Ester (FAME) or biodiesel in presence of calcium oxide catalyst at 65°C. The properties of produced biodiesels and their blend for different ratios (B10, B20, B30 and B100) are comparable with properties of diesel and ASTM biodiesel standards. Tests have been conducted on CI engine for different blends of biodiesel with standard diesel, at an engine speed of 1500 rpm, fixed compression ratio 17.5, fixed injection pressure of 200bar and varying brake power. The performance parameters includes brake thermal efficiency, brake specific fuel consumption, Exhaust gas temperature and emissions parameters as Carbon monoxide (CO), Carbon dioxide (CO2), Hydrocarbon (HC) and Oxides of nitrogen (NOx) varying against Brake Power (BP).

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Performance Evaluation of Rice Bran and Moringa Blended Biodiesel in CI Engine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.775.147 ◽

2015 ◽

Vol 775 ◽

pp. 147-151

Author(s):

M.A. Wakil ◽

M.A. Kalam ◽

H.H. Masjuki ◽

H. Sajjad ◽

M.M. Rashed ◽

...

Keyword(s):

Rice Bran ◽

Biodiesel Production ◽

Biodiesel Blends ◽

Exhaust Temperature ◽

Constant Torque ◽

Potential Sources ◽

Feasible Option ◽

Ci Engine ◽

Moringa Oil ◽

Standard Limit

Biofuels are taken to a notable option for research to energy sources because of their beneficial effect to milieu. In this study, two potential sources namely; Moringa and Rice bran oils are investigated critically as potential sources for biodiesel production. The work was classified into some steps. Firstly, biodiesel production from the two feedstock, secondly, measure the important physicochemical properties of biodiesels, and finally engine test is carried out with biodiesel-diesel blends under constant torque with variable speed. The results show that with the increasing speed, BSFC increases for both biodiesel blends and diesel and biodiesel blends shows only about 2% more BSFC than diesel. Exhaust temperature of biodiesel is about 5-8% higher than diesel but this difference is decreasing with increasing speed. It can be concluded that rice bran and moringa oil would be the feasible option for biodiesel as they satisfy ASTM standard limit and their performance is nearly similar to diesel.

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