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Biodiesel as an alternative fuel
By,
SurajSingh Rajput
and
Somashekhar Mashale
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IntroductionGrowing civilizationWhat is Biodiesel?
12% less energy content
B factor
Can replace petro-diesel with no majoradjustments
Substantial reductions in unburnedhydrocarbons, CO & CO2
Transesterification
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Transesterification
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After Glycerin removal, the biodiesel just needs tobe cleaned/purified before use.
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Specifications of the engine used
for testing:
Engine stroke length: 110mm
Bore diameter: 80mm
No. of cylinders: 1
No. of strokes: 4
Compression ratio: 16.5:1
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Comparison
Property Petro-diesel Neem oil
Density 822 kg/m3 862 kg/m3
Cetane value 50 51Flash point 560 C 1800 C
Fire point 620 C 1950 C
Calorific value 48784 kJ/kg 36200 kJ/kg
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BP v/s A/
0
10
20
3040
50
6070
0 0.5 1 1.5 2
BP
A/F
petro-dies
10%
20%
25%
30%
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BP v/s Exhaust gas temperat
0
50
100
150
200
250
0 0.5 1 1.5 2
BP
Exhaustgastem
perature
petro-dies
10%
20%
25%
30%
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BP v/s Volumetric Efficiency
73
74
75
76
77
78
0 0.5 1 1.5 2
BP
VolumetricEfficienc
Petro-diesel
10%
20%
25%
30%
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BP v/s Thermal Efficie
0
5
10
15
20
25
0 0.5 1 1.5 2
BP
ThermalEfficiency petro-dies
10%
20%
25%
30%
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BP v/s BSF
0
0.5
1
1.5
2
0 0.5 1 1.5 2
BP
BSFC
petro-dies
10%
20%
25%
30%
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AdvantagesAdvantages Easy to use
Power, performance and economy
Reduced emissions and greenhouse
gases Energy balance and energy security
Toxicity, biodegradability, safety &recyclable
Economic development
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Disadvantages
Increased NOx emissions.
Less suitable for use at lowtemperatures.
Reduced fuel economy.Has excellent solvent properties.
Increases pressure on the farm lands.
Spills of biodiesel can decolorize any
painted surface if left for long period.
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Applications As a fuel for vehicles
To supply heat to furnaces
Replacement for home heating fuel
Paint stripper
As a lubricant on a metal lathe
Railway engines
Aircrafts
Commercial boilers
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Conclusion Biodiesel is eco-friendly
The engine used for testing wasunaltered
Advantageous over the conventionalPetro-diesel
B10 is relatively a better choice as analternative for Petro-diesel(100%)
Biodiesel is biodegradable, non-toxic andfree from lead and sulphur
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SuggestionsTo make use of Super Critical Trans-
esterification process, which reducesviscosity of the oil further.
To determine the other properties of thebiodiesel and its blends like Cetanenumber, octane number, lubricity, cloudpoint, pour point, etc.
Performance test is to be made with
alterations in the engine.
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ThankYou