Ethos
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Joined: Mar 2004
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From: Miami
Registered User
Joined: Feb 2004
Posts: 591
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From: Lafayette, LA
Take the money you would have spent on that ethos and buy a thermodynamics text instead.
Fuel of xxx BTU/lb flows at yyy lb/hr through injectors, where it mixes with air of zzz BTU/lb at about 14 times (actual stoichiometric air-fuel ratio is 14.7:1) the flow rate of the fuel. (XXX times YYY) plus (ZZZ times 14 times YYY). That equation defines how much heat energy (BTU/hr) is released into the combustion chambers during the ignition strokes.
Displacing some gasoline with a lower BTU/lb fuel can only decrease total energy release. Now if that stuff were somehow hotter (more BTU/lb) than gasoline, or supported a much richer air/fuel ratio, or somehow acted as a catalyst for the oxidation reaction, it could increase the energy release. But anything like that would be in large scale use already.
Fuel of xxx BTU/lb flows at yyy lb/hr through injectors, where it mixes with air of zzz BTU/lb at about 14 times (actual stoichiometric air-fuel ratio is 14.7:1) the flow rate of the fuel. (XXX times YYY) plus (ZZZ times 14 times YYY). That equation defines how much heat energy (BTU/hr) is released into the combustion chambers during the ignition strokes.
Displacing some gasoline with a lower BTU/lb fuel can only decrease total energy release. Now if that stuff were somehow hotter (more BTU/lb) than gasoline, or supported a much richer air/fuel ratio, or somehow acted as a catalyst for the oxidation reaction, it could increase the energy release. But anything like that would be in large scale use already.
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