JohnO wrote:
> On May 28, 10:50 am, "veedu...@[EMAIL PROTECTED]
" <veedu...@[EMAIL PROTECTED]
> wrote:
>> Worth repeating. (Originally posted to the AirVW Group)
>>
>> Re: Alcohol in fuel
>>
>> Alcohol has a lower BTU value than gasoline. Depending on how much
>> they are adding to your fuel, you are going to be seeing less power.
>>
>> Alcohol is hygroscopic; it absorbs moisture and holds it in
>> suspension, further reducing the energy content of your fuel but also
>> exposing your fuel system to corrosion.
>>
>> Alcohol weighs less than gasoline. The stoichiometric ratio of an
>> Otto Cycle engine is based on the MASS of fuel & air. If you have a
>> fuel-injected engine with an on-board combustion-control computer, the
>> system will adjust itself automatically and the only thing you'll
>> notice is that you must now buy/burn more fuel to travel the same
>> distance or do the same amount of work. If you are using a carburetor
>> you will have to re-size your jets to accommodate this lower-energy
>> fuel.
>>
>> Depending on the type of alcohol being used to adulterate your fuel
>> (ie, methanol or ethanol), your fuel will now have a higher
>> endothermic ratio to achieve va****ization. With pure gasoline the
>> endotherm is about 90 degrees on the Fahrenheit scale; alcohol is
>> between 120 and 140. Given that alcohol is also hygroscopic, you will
>> have to re-size your carb & manifold heating arrangement to prevent
>> icing.
>>
>> Alcohol has a higher octane rating than straight-run gasoline (about
>> 120 vs 80). If alcohol is the only fuel you can afford (ie, as with
>> Brazil) then you can increase your engine's compression ratio to take
>> advantage of its higher octane. But this is not practical with an
>> engine originally designed to use unadulterated gasoline.
>>
>> -----------------------------------------
>>
>> Adding alcohol to gasoline is a TERRIBLE idea, especially for
>> aviation. Large cor****ations bribed our Congressmen to subsidize the
>> building & operation of the necessary distilleries to ensure a
>> built-in margin of profit. Since the average American is a virtual
>> idiot when it comes to technology, they simply told them alcohol was
>> 'environmentally friendly' to sell this particular scam to the public.
>> In fact, mixing alcohol with gasoline is an environmental disaster
>> since we will now have to burn more fuel (and generate more pollution)
>> to do the same amount of work or travel. The subsidies amount to
>> about seventy cents per gallon of alcohol and are in fact a hidden tax
>> imposed on anyone forced to use this adulterated fuel.
>>
>> -R.S.Hoover
>
> And not only that, it makes your martini taste terrible.
Reminds me of the cotton gin. Who wants a fluffy martini?
Dan, U.S. Air Force, retired
|
