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- Path: sparky!uunet!spool.mu.edu!wupost!darwin.sura.net!dtix!oasys!bense
- From: bense@oasys.dt.navy.mil (Ron Bense)
- Newsgroups: rec.autos.tech
- Subject: Re: Oxygenated Gasoline and Low MPG (super unleaded?)
- Message-ID: <29522@oasys.dt.navy.mil>
- Date: 11 Jan 93 16:28:17 GMT
- References: <4278.88.uupcb@chaos.lrk.ar.us> <841r97b@dixie.com>
- Reply-To: bense@oasys.dt.navy.mil (Ronald Bense)
- Organization: Carderock Division, NSWC, Bethesda, MD
- Lines: 79
-
- In rec.autos.tech, jgd@dixie.com (John De Armond) writes:
- >bense@oasys.dt.navy.mil (Ron Bense) writes:
-
- >Umm maybe so but I'll bet on my sources at API (American Petroleum Institute)
- >over day labor on a loading dock.
-
- If you want to call a guy that has attained the rank of captain a day
- laborer, be my guest.
-
- >Not suprising. Hourly workers have all kinds of superstitions that
- >can't be changed by any amount of fact. When I used to work in a
-
- See above.
-
- >>Alcohol requires oxygen to burn. Something like Potassium Perchlorate
- >>decomposes and yields extra oxygen. That's what I would call an oxygenate,
- >>but no one has answered that yet, so I'll wait and see what occurs.
-
- >ethers fit the category. If you think that ANY of these fuels can
- >burn without oxygen and thus are hard to extinguish OR you believe
-
- Obviously I don't, would you care to check your reading comprehension
- by going over this thread again?
-
- >that potassium perchlorate or any other oxidizer is blended into
- >pump gas, then, well... I have some nice seafront property to sell...
-
- My point was that NaClO5 is a chemical that will produce excess oxygen
- when it decomposes. According to all the snake-oil type commercials
- and other bull going on about this new "oxygenated" gas, this is what
- the additives are supposed to do (add oxygen, that is). As for the seafront
- property, that wouldn't be near the Dewey beach region, would it? :)
-
- [deleted response to 1]
-
- a) I believe the technical aspects of your response to one.
- b) My car compensates for "leanness" by reading the O2 value in the
- exhaust and regulating fuel input to the engine. This does not
- apply.
-
- >Specific energy is almost the same for alcohol and gasoline:
-
- >Gasoline 2.92
- >methanol 3.08
- >Ethanol 3.00
-
- very good, now let's look at:
-
- >Heating value
-
- >Gasoline 42.7 MJ/kg
- >Methanol 19.9
- >Ethanol 26.8
-
- Heat and gas expansion are where the energy comes from. Which would
- you rather be running your car on?
-
- >oxygen content:
-
- Doesn't really mean diddly to the average consumer, who just notes that
- the amount he pays to go one mile just increased by 10-20%.
-
- >The economy difference between propane and gasoline is due to the different
- >density and molecular weight of the fuels and thus the difference in
- >the number of fuel atoms per gallon of fuel. Propane does NOT produce
- >less power than gasoline. Propane's slight loss in volumetric efficiency
-
- Ok, so it was an unfair comparison, but when you're taxed by the gallon...
-
- >due to its being introduced as a gas instead of a liquid is more than
- >offset by its high octane. When the engine is tuned for propane (NOT
- >duel fuel, add-on conversions), it makes as much power as a gas motor.
-
- Ah, but the add-on conversions (which, from what I remember about them,
- don't cost an excessive amount) would significantly reduce pollution
- in older cars, would they not? More so than this meager reduction offered
- by the "new" gas, after you factor in how much more of it is burned.
-
- Ron
-