More Infor on BioDiesel

Now I am going back a long way into the memory archive here but I seem
to remember that the oxidation of one molecule of benzene (the major
component of Gasoline) produces more heat than the oxidation of one
molecule of diesel. However since figuring the oxidation of any solid
or a liquid with a gas you need to use weights as that factors out the
pressure of the gas. Since gasoline weighs about 6.5 lbs per gallon and
Diesel weighs just under 7.0 lbs per gallon.

To oxidize gasoline at the most efficient ratio of gas ot air of 15/1.

That means you need 105 lbs of air to oxidize 7 lbs of of Diesel fuel.

Gasoline only need 97.5 lbs of air to oxidize 1 gallon of gasoline.

In engines of the same displacement a Diesel Engine will turn more
revolutions than a gasoline engine. Those revolutions turn into
higher defiency.

There is also the torque factor in that in a gasoline engine all the
fuel is in the cylinder at the moment of ignition and heat though being
higher initially as the gas expands the temperature starts to drop.

Because Diesel is injected into the cylinder once ignition starts some
amount of fuel is injected into the cylinder as the gas in the
cylinder is expanding the heat of the gas charge stays at the elevated
level loner, their by yeilding more torque in the turning of the engine.

The Independent




Rob Munach wrote:
>
> The Independent wrote:
>
> > You forgot to add that Diesels get better mileage than gas engines of
> > the same displacement.
> >
> > There are two reasons for this.
> > One is that diesel fuel weights more than gasoline so there is more
> > energy in a gallon of Diesel than there is in a gallon of gas.
> > The second is that Diesels work at a higher average pressure than the
> > gas engine (remember the PLANK formula when figuring horse power) and
> > there fore produce more horsepower than a gasoline engine of the same
> > size running at the same RPM. (The reason that Gas engines seem to
> > develop more horsepower is that we run them at higher RPM's). That
> > is why diesels run 200,000 to 300,000 miles between overhauls and gas
> > run between 100,000 and 150,000. Well the fact that diesel is an oil
> > which has a higher lubricant value than gasoline also makes a \
> > difference.
> >
> > The Independent
> >
> >
> >
> > "R. David Steele" wrote:
> >
> >>On Mon, 10 May 2004 15:30:25 -0700, The Independent
> > wrote:
> >>
> >>|According to the Department of Ag and the Alternative Fuels Data
> >>|Center, the amount of vegetable oils and animal fats that can be
> >>|recycled and the overproduction of Soy oil, the United States has
> >>|the capacity to produce 1,900,000,000 (that 1.9 billion) gallons
> >>|of BioDiesel annually. That is the equivalent of 6.65 million tons
> >>|of Diesel fuel or 33 super tankers full of diesel fuel.
> >>|
> >>|Besides the BioDiesel is a much cleaner burning fuel than regular
> >>|Diesel and is much more environmentally friendly fuel.
> >>|
> >>|Bio Diesel can be made in your kitchen and the only tricking things
> >>|that you need (hard to get) are methyl Alcohol, and some small
> >>|amount of Sulfuric acid. The sulfuric acid is used to pretreat
> >>|contaminated oil from deep fat Fryers and other places. Common
> >>|household lye can be purchased from local supermarket.
> >>|
> >>|Studies were done at the University of Idaho Chemical Engineering
> >>|department determined that BioDiesel made with Ethyl Alcohol,
> >>|(Ethyl Alcohol was chosen so that the fuel could be made from
> >>|all renewable resources. The Cost of the fuel in small batches
> >>|was determined to be $1.85 a gallon with the production of Glycerin
> >>|that was regarded as a waste product. Approximately 40$ of the
> >>|vegetable oil was converted into Glycerin. (However glycerin can be
> >>|used to make home made soap, shampoo, and hand lotion so it does have
> >>|a value)
> >>|
> >>|The web site that I visited and down loaded for the making of BioDiesel
> >>|was:
> >>|http://journeytoforever.org/biodiese...tml#ethylester
> >>|
> >>|This is directions of making BioDiesel from Ethyal Alcohol and oil
> >>|to make BioDiesel.
> >>|
> >>|I think that Making BioDiesel in TEOTWAWKI is a very doable thing.
> >>|This should make sure that fuel will be available for Diesels Gen
> >>|Sets remain Viable long after fuel becomes unavailable.
> >>|
> >>|The Independent
> >>
> You forgot that there are also no throttling losses in a Diesel. I
> haven't heard the fuel weight argument before. What are the respective
> BTU's per lb and density for gas and diesel?

On Tue, 11 May 2004 14:59:11 GMT, Rob Munach >
wrote:


>:|>>
>:|You forgot that there are also no throttling losses in a Diesel. I
>:|haven't heard the fuel weight argument before. What are the respective
>:|BTU's per lb and density for gas and diesel?

Gasoline, regular unleaded, (typical)
gallon
114,100 BTU
1.00 gallon

Gasoline, RFG, (10% MBTE)
gallon
112,000 BTU
1.02 gallons

Diesel, (typical)
gallon
129,800 BTU
0.88 gallons


-Bret

On Tue, 11 May 2004 14:59:11 GMT, Rob Munach >
wrote:


>:|>>
>:|You forgot that there are also no throttling losses in a Diesel. I
>:|haven't heard the fuel weight argument before. What are the respective
>:|BTU's per lb and density for gas and diesel?

Gasoline, regular unleaded, (typical)
gallon
114,100 BTU
1.00 gallon

Gasoline, RFG, (10% MBTE)
gallon
112,000 BTU
1.02 gallons

Diesel, (typical)
gallon
129,800 BTU
0.88 gallons


-Bret

In article >,
/OMEGA says...
> In smaller 4 or six cylinder, in line, engines diesel makes more
> sense. Until you get to the V-6, gas has no real advantage.
>
> Now, when are we going to see Land Rover or Jeep sell a diesel
> SUV in the US? These gas prices are making SUVs too expensive to
> drive!
>
>
>

They already have and do, no one wants them. Europeans wouldn't want
them either if gas was $2 a gallon there too.
--
____________________
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In article >,
/OMEGA says...
> In smaller 4 or six cylinder, in line, engines diesel makes more
> sense. Until you get to the V-6, gas has no real advantage.
>
> Now, when are we going to see Land Rover or Jeep sell a diesel
> SUV in the US? These gas prices are making SUVs too expensive to
> drive!
>
>
>

They already have and do, no one wants them. Europeans wouldn't want
them either if gas was $2 a gallon there too.
--
____________________
Remove "X" from email address to reply.

On or around Wed, 12 May 2004 00:48:23 -0300, Chris Phillipo
> enlightened us thusly:

>In article >,
/OMEGA says...
>> In smaller 4 or six cylinder, in line, engines diesel makes more
>> sense. Until you get to the V-6, gas has no real advantage.
>>
>> Now, when are we going to see Land Rover or Jeep sell a diesel
>> SUV in the US? These gas prices are making SUVs too expensive to
>> drive!
>>
>>
>>
>
>They already have and do, no one wants them. Europeans wouldn't want
>them either if gas was $2 a gallon there too.

yeah, but gas is going up in the states too. and will continue to do so, is
my guess. our "gas" (petrol) is just over 80p per litre, 3.63 per (proper
UK) gallon, which is probably somewhere around $7 at the moment. Diesel is
if anything slightly more, but the diesel-engine vehicles typically get more
MPG - our TDi discovery for example gets about 30 mpg with reasonable
driving, whereas a petro equivalent (although more fun!) would be lucky to
break 20.

'course, we really do need to look into biodiesel, since the fossil fuel
supply is being devoured at way more than a sustainable rate. We also need
to look at patterns of life and work, and stop having people commute to work
who could easily do their work from home.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
Appearances: You don't really need make-up. Celebrate your authentic
face by frightening people in the street.
from the Little Book of Complete B***ocks by Alistair Beaton.

On or around Wed, 12 May 2004 00:48:23 -0300, Chris Phillipo
> enlightened us thusly:

>In article >,
/OMEGA says...
>> In smaller 4 or six cylinder, in line, engines diesel makes more
>> sense. Until you get to the V-6, gas has no real advantage.
>>
>> Now, when are we going to see Land Rover or Jeep sell a diesel
>> SUV in the US? These gas prices are making SUVs too expensive to
>> drive!
>>
>>
>>
>
>They already have and do, no one wants them. Europeans wouldn't want
>them either if gas was $2 a gallon there too.

yeah, but gas is going up in the states too. and will continue to do so, is
my guess. our "gas" (petrol) is just over 80p per litre, 3.63 per (proper
UK) gallon, which is probably somewhere around $7 at the moment. Diesel is
if anything slightly more, but the diesel-engine vehicles typically get more
MPG - our TDi discovery for example gets about 30 mpg with reasonable
driving, whereas a petro equivalent (although more fun!) would be lucky to
break 20.

'course, we really do need to look into biodiesel, since the fossil fuel
supply is being devoured at way more than a sustainable rate. We also need
to look at patterns of life and work, and stop having people commute to work
who could easily do their work from home.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
Appearances: You don't really need make-up. Celebrate your authentic
face by frightening people in the street.
from the Little Book of Complete B***ocks by Alistair Beaton.

Austin Shackles wrote:
> On or around Wed, 12 May 2004 00:48:23 -0300, Chris Phillipo
> > enlightened us thusly:
>
>
>>They already have and do, no one wants them. Europeans wouldn't want
>>them either if gas was $2 a gallon there too.

Yes but diesel is much cheaper to make, so Diesel might be $1.50
/gallon, and still more efficient than "gas". Where is your argument then ?

> 'course, we really do need to look into biodiesel, since the fossil fuel
> supply is being devoured at way more than a sustainable rate. We also need
> to look at patterns of life and work, and stop having people commute to work
> who could easily do their work from home.
>
I would like to know how much land it would take to grow biodiesel for,
say, my car which does 10-12,000 miles/year at 40-50 mpg. Then scale it
up. Have we enough land ?

Steve

Austin Shackles wrote:
> On or around Wed, 12 May 2004 00:48:23 -0300, Chris Phillipo
> > enlightened us thusly:
>
>
>>They already have and do, no one wants them. Europeans wouldn't want
>>them either if gas was $2 a gallon there too.

Yes but diesel is much cheaper to make, so Diesel might be $1.50
/gallon, and still more efficient than "gas". Where is your argument then ?

> 'course, we really do need to look into biodiesel, since the fossil fuel
> supply is being devoured at way more than a sustainable rate. We also need
> to look at patterns of life and work, and stop having people commute to work
> who could easily do their work from home.
>
I would like to know how much land it would take to grow biodiesel for,
say, my car which does 10-12,000 miles/year at 40-50 mpg. Then scale it
up. Have we enough land ?

Steve

On or around Wed, 12 May 2004 13:09:24 +0100, Steve
> enlightened us thusly:

>>
>I would like to know how much land it would take to grow biodiesel for,
>say, my car which does 10-12,000 miles/year at 40-50 mpg. Then scale it
>up. Have we enough land ?
>

According to some approximate figures I worked out a bit back, the fuel used
in cars in the UK must come into the region of millions of gallons per day.

However, I've no idea how much oilseed rape you have to grow to produce that
much fuel, or indeed any given amount of fuel.
--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Something there is that doesn't love a wall."
Robert Frost (1874-1963)