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Author Topic: Vegie oils & conversions  (Read 14301 times)

JohnF13

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Re: Vegie oils & conversions
« Reply #30 on: May 19, 2006, 11:08:10 PM »
Tim;

No heaters in the lines, my buddy runs a line from his water jacket through the bottom of his fuel tank, that heats it quite well.  I run my lines down the water jacket outlet, that helps heat the oil.  However, my genshed is well insulated and gets quite hot - around 90 - 100F in there most times.  My fuel tanks are right up against the ceiling, so they get pretty warm.

I have not tried WVO in a DI engine, there is no reason to believe it will not work, but I suspect that if the oil is not hot enough at the injectors there will be significant coking.  Other people may have more experience with DI's, amybe they can chime in and let us know how it works.
John F
2 x 6/1 JKSON.  1 x 10/1 JKSON, 1 x 27hp Changfa, 1 x 28hp AG295, 1 genuine 1939 SOM, a couple of others in test mode and a Hercules Multu-fuel still in the box.

danalinscott

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Re: Vegie oils & conversions
« Reply #31 on: December 21, 2006, 09:20:07 PM »
I have a bit of experience converting diesel engines to WVO.

There are some basics most of which I believe apply as much to a slow running lister(oid) as to a VW TDi.

Understandably there seem to be a few which do not..and a few basics which only apply to the Lister(oid)s.

If anyone is interstested in my opinion on these. Just let me know.
Email me, start a new discussion, or post to this one.

I am not picky. ;D
Dana
danalinscott@yahoo.com

SCOTT

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Re: Vegie oils & conversions
« Reply #32 on: December 21, 2006, 11:00:15 PM »
Dana

There is a thread about making injection line heaters, take a look.  This is something I have interest in, what is your take on the ideal temp of veg oil for injection? I seem to remember reading that at around 300F the viscosity of veg oil and diesel are very close to parity.  But it seems that most are shooting for 180-200f. 

Are there any disadvantages of heating it up to 300f ?  I tend to think there are not, because the oil could not “burn” in the absence of O2 in the injector line and I believe that fryers operate up to 375 f . 

So if you can heat it up and get a viscosity very close to diesel then the spray pattern and thus combustion efficiency would be improved.

What’s your opinoin. 

BTW if you have any info you think is useful about anything lister related please post. Even if it has been mentioned before not everyone has read every old topic/post.

Best regards
Scott
net metering with a 6/1 in Connecticut
12/1
6/1

danalinscott

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Re: Vegie oils & conversions
« Reply #33 on: December 22, 2006, 07:21:39 PM »
Quote
Are there any disadvantages of heating it up to 300f ?

Nope..I am aiming for temps of 250-275°F currently in all of the conversion I am responsible for.
By only rasing VO to the is temp right before it is injected problems with accellerated polymerization as eliminated.

I use the lineheaters from http://lineheaterspecialists.netfirms.com/ exclusivly. Much more efficeint and a bit more powerful than the design Fattywaggon used to use when they were still in business.

I will try to put together a tutorial on the special concerns of converting Listeroids to WVO. But it may be after Christmas.  Plese remind me if new years rolls around and I have not begun. Too many projects  and I can easily forget one as I focus intently on another.
Dana
danalinscott@yahoo.com