Re: [biofuels-biz] SVO versus BD

2002-07-09 Thread r . p . kurz

Reinhard, thank you for your quick and informative
response. i will research the matter further and
post my results.
  kindest regards,
 roger


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Re: [biofuels-biz] SVO versus BD

2002-07-09 Thread henning

Hello Roger,

I don't have personal experience with the oil in the burner of heating systems. 
I am occupied with the use of plant oil in a small family stove for cooking 
purposes. 

During the preparation of the burner project it was clear, that SVO can be used 
without any problems in heating systems, because it is well distributed by the 
injection system and the air stream.

You should try it with a bucket and a steadily growing percentage of SVO. Up to 
100 %.

With our svo cooking stoves, we have more problems. We cannot use external 
energy to produce an air stream. The only help is to give some pressure into 
the oil reservoir (Petromax system).

If you use the petromax system with plant oil, you get a cracking of the 
molecules within the pipes, which block them in a short time. This man from 
Hohenheim university found a method to get around this problem, and he shows a 
very nice plant oil burner (approx. 3 kW), which gives a blue, smokeless flame 
(like LPG).

Perhaps you can contact Carl Bielenberg. He lives in your area (Vermont) and is 
very familiar with plant oil. His phone number is: 001 802 456 89 93.

Kind regards

Reinhard Henning




<[EMAIL PROTECTED]> schrieb:
> Reinhard,
>  you make a persuasive argument and have me 
> rethinking my current biodiesel efforts. do you or 
> others have experience with burning SVO in a home
> heating oil burner,for domestic heat and hot water?
> my other observation is that here in the USA our 
> winters are usually much more severe that in Europe.
> (at least in the northeast states ,where i live) 
>  this would seem to complicate cold weather vehicle
> operation.thank you for sharing you insights
>regards, roger kurz ([EMAIL PROTECTED])
> 
> 
> 
> Biofuels at Journey to Forever
> http://journeytoforever.org/biofuel.html
> Biofuel at WebConX
> http://www.webconx.com/2000/biofuel/biofuel.htm
> List messages are archived at the Info-Archive at NNYTech:
> http://archive.nnytech.net/
> To unsubscribe from this group, send an email to:
> [EMAIL PROTECTED]
> 
>  
> 
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ 
> 
> 
> 


-- 
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Tel: ++49 8389 984129, Fax: 984128, e-mail: [EMAIL PROTECTED]
internet: www.bagani.de

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Re: [biofuels-biz] SVO versus BD

2002-07-09 Thread r . p . kurz

Reinhard,
 you make a persuasive argument and have me 
rethinking my current biodiesel efforts. do you or 
others have experience with burning SVO in a home
heating oil burner,for domestic heat and hot water?
my other observation is that here in the USA our 
winters are usually much more severe that in Europe.
(at least in the northeast states ,where i live) 
 this would seem to complicate cold weather vehicle
operation.thank you for sharing you insights
   regards, roger kurz ([EMAIL PROTECTED])


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http://journeytoforever.org/biofuel.html
Biofuel at WebConX
http://www.webconx.com/2000/biofuel/biofuel.htm
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[biofuels-biz] SVO versus BD

2002-07-09 Thread henning

Albert Einstein often said: "Use the simplest thing that works, as long as it's 
the best thing." 

This in mind one should compare the two actual possibilities to use plant oil 
as fuel:

1) adaptation of the oil to the engine (bio-diesel, BD)
2) modification of the engine to run on pure plant oil (straight vegetable oil, 
svo)

Plant oil is pure stored solar energy in its densiest form (9,2 kg /l). It 
contains only the elements carbon C, hydrogen H and oxygen O. In the simplest 
way it is produced only by grinding of seeds and pressing (ram presses, 
expellers) it. Purification by sedimentation and / or filtration: Can somebody 
imagine a simpler method of producing highly concentrated, environmentally 
friendly energy.

In a short term planning, it is interesting to use biodiesel, because you can 
use the already existing car engines. 

But in a longer perspective, it is more interesting to adapt the engines to run 
on pure plant oil (SVO). And you have all the advantages of an decentralized 
fuekl production. And you dont need a chemical workshop to produce your own 
fuele at home. A ram press for about 200 $ and some plastc barrel is all you 
need.

For the mean time, you can convert your diesel engines into plant oil engines 
(the still run on diesel). The conversion kits are not expensive, but they are 
a bit different for one engine or the other. (The Mercedes 123 engine doesn't 
have to be modified at all. You just run it with SVO. If its cold, you add some 
diesel.

In Germany, the producer of the tractors for agriculture are already very 
interested to offer SVO-versions of their diersel engines to the farmers 
(Deutz, John Deere). So in a short future, probably the truck engine producers 
will do the same and later the car engine producers. 

Another important argument for the use of SVO instead of BD is the energy input 
for its production. With BD it is about 1/3, i.e. you need about 30% of the 
energy of 1 litre of BD to produce 1 litre of BD (in form of Merthanol or 
aethanol, chemicals, destillation/purification).

For the production of SVO you need only about 15 % (12 % for agriculture, 3 % 
for oil extraction). If you use ecological advanced production methods, you can 
reduce these 12 % considerably.


Ernst Schrimpff of the Tecnical College of Weihenstephan, Germany, listed 8 
parameters to compare SVO with BD. Here his list (partly):

see also the attachment or:

http://jatropha.org/p-o-engines/svo-bd-characteristics.htm

Plant oil (SVO) biodiesel (BD)

1) Physical characteristics:

physical density0,90 - 0,92 0,88

viscosity   60 - 80 7 - 8

ignition point  > 220   135

2) Chemical characteristics:

phosphate mg/kg < 15< 15

sulphur mg/kg   < 10< 10

Chem. reaction  neutral, very low   hygroscopic, 
solvent, fast reaction

3) Production:

principle   decentralized small central, big 
industrial units
oil expellers
chemical compounds needed   -   methanol, 
potassium hydroxyd

energy input12 %29 %

5) Transport / storage  no risk small risk

6) Environment

biol. degradation   very fast   delayed

danger to water no  small

human toxicity  regularly notoxic
(or small)

material circuitcomplete
difficult to realize

7) Social acceptability

strategysmall, decentralizedbig, central

logistics   simple  komplex

transportation  short distances long distances

vulnerability   small   higher

regional income highlow
generation

8) Costs

fuel production 0,25 - 0,40 0,45 - 0,60 US$

fuel prices 0,45 - 0,55 0,70 - 
0,85 US$


Interesting links to this SVO - DB - discussion are:

http://www.vegburner.co.uk

http://www.pflanzenoel-motor.de  (German)

http://jatropha.org/p-o-engines/conversion-cars.htm

http://elsbett.com/emotanfr.htm

http://journeytoforever.org/biodiesel_svo.html

Kind regards

Reinhard Henning


 
-- 
bagani GbR, Reinhard Henning, Rothkreuz 11, D-88138 Weissensberg, Germany
Tel: ++49 8389 984129, Fax: 984128, e-mail: [EMAIL PROTECTED]
internet: www.bagani.de

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