Oil Fuel Air
Tuesday, September 15th, 2009Oil Fuel Air
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How much air is typically used to burn 1 gallon of gasoline or fuel oil?
for complete combustion
AFRS(air fuel ratio stoichiometric) = mass of air / mass of fuel
C8H18 = CxHy
x = 8
y = 18
air consists of 79% N2 and 21% O2
M of O2 = 32 g/mol
M of N2 = 28 g/mol
M of C8H18 = 114.2285 g/mol
density of air = 1.2 kg/m3
density of C8H18 = 0.7025 g/mL
AFRS=[x + y/4][M of O2 + (0.79/0.21)(M of N2) ] / [ M of fuel ]
AFRS=[8 + 18/4][32 + (0.79/0.21)(28) ] / [ 114.2285 ]
AFRS = 15.03
AFRS = mass of air / mass of fuel
mass of fuel = (1gal)(3 785mL/gal)(0.7025g/mL)
mass of fuel = 2658.96 g
mass of air = (15.03)(2658.96)
mass of air = 39 964 g or 39.964 kg
volume of air = 39.964 / 1.2
volume of air = 33.30 m3
you need 39.964kg or 33.30m3 of air to burn all the 1 gal of gasoline



US $14.99



















































































