Alternative Fuel- Hydrogen, Biodiesel, LPG, CNG, Alcohol and Biogas
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Language: en
Added: Nov 20, 2019
Slides: 52 pages
Slide Content
ALTERNATE FUELS
Alcohol, Hydrogen, Compressed Natural Gas, Liquefied Petroleum Gas
and Bio Diesel -Properties, Suitability, Merits and Demerits -Engine
Modifications.
Alternative Fuels
•Alcohols
•Vegetable oils
•Biodiesel
•Biogas
•Natural gas
•Liquefied Petroleum Gas (LPG)
•Hydrogen
Alternative fuels in Engine
Production of Methanol from Lignite or Coal
Production of Methanol from Municipal Solid Wastes
Production of Ethanol from Grains
Production of Ethanol from Sugarcane
Alcohols for SI engines
Alcoholshavingantiknockcharacteristiccomparedtogasolinebecause
highercompressionratioof11:1and13:1to7:1or9:1.Alcohol
producesfewerharmfulexhaustemissions.Itcontainsabouthalfthe
heatenergyofgasolineperliter.Acarburetororfuelinjectorfuel
passagesshouldbedoubledinaretoallowextrafuelflow.
Itdoesnotvaporizeaseasilyanditslatentheatofvaporizationismuch
greater.Thisaffectscoldweatherstarting.
Alcohols for SI engines
Water Gasoline Mixture for SI engine.
Alcohols for CI engines
Hydrogen engine
Hydrogen induction in spark ignition engine
CNG in SI engine
Typical LPG propane fuel feed system
Bio gas in SI engine
Bio gas in CI engine
Schematic diagram of Experimental Setup
Performance of Alternative Fuels
a) BP VSSFC b) BP VSBrake Thermal Efficiency
Specific Fuel Consumption kg/kW
-
hr
Brake Power kW
Brake Thermal Efficiency %
Brake Power kW
Performance of Alternative Fuels Emission
c) BP VSIndicated Thermal Efficiency a) BP VSCarbon dioxide
Indicated Thermal Efficiency %
Brake Power kW
Carbon dioxide %
Vol
Brake Power kW
Emission
b) BP VSNox c) BP VSUnburned HC
NOx
ppm
Brake Power kW
Hydrocarbon
ppm
Brake Power kW