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Author Topic: WVO/SVO preheat via exhaust coil  (Read 17373 times)

BruceM

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Re: WVO/SVO preheat via exhaust coil
« Reply #15 on: January 19, 2006, 05:53:03 AM »
Ken, I'm  intrigued and looking forward to reading of your most practical analysis of unheated rapeseed oil.  I think I've read that rapeseed is one of the best in colder temperatures, so this should be interesting!

Bravo!

Bruce McCreary
Metro 6/1
Snowflake, AZ



kyradawg

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Re: WVO/SVO preheat via exhaust coil
« Reply #16 on: January 19, 2006, 06:26:53 AM »
 Peace&Love :D, Darren

« Last Edit: August 03, 2006, 07:08:01 PM by kyradawg »

n2toh

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Re: WVO/SVO preheat via exhaust coil
« Reply #17 on: January 19, 2006, 09:02:54 AM »
cetane number indicates the willingness of a fuel to burn, not knock resistance.
About 60 years is all it takes to make science fiction a reality.

kyradawg

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Re: WVO/SVO preheat via exhaust coil
« Reply #18 on: January 19, 2006, 03:27:25 PM »

Peace&Love :D, Darren
« Last Edit: August 03, 2006, 06:06:37 PM by kyradawg »

Doug

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Re: WVO/SVO preheat via exhaust coil
« Reply #19 on: January 19, 2006, 04:52:08 PM »
No wuckas brother I read your data and knew what you mean't
I used to work in waste oil cracking plant and we checked flash point and cetane on every run we cooked.
God awfull stuff we brewed but is was intended to be used for industrial oil burners, some did find its way inmy service truck where it ran well because of a high cetane number and more BTUs but it also clogged filters pumps and injectors.

The I heard about Veg....
Thats the way of the future

Doug

kyradawg

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Re: WVO/SVO preheat via exhaust coil
« Reply #20 on: January 19, 2006, 05:16:33 PM »
Doug, thanks bro. Running my f250 on veggie really is a amazing thing the motor makes so much less noise and takes on an organic smoothness thats readily tangable. The compared softness of the cycloniic ossolations are hypnotizing. As far as the clogging of componets Ive found that to be directly proportional to the quality of oil (fat content) and filtering habits.
Peace&Love :D, Darren
« Last Edit: January 19, 2006, 10:40:30 PM by kyradawg »

SHIPCHIEF

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Re: WVO/SVO preheat via exhaust coil
« Reply #21 on: January 19, 2006, 05:38:24 PM »
Darren, perhaps N2toh was refering to octane, which is the reluctance of gasoline to explode, but rather to push the piston down. High octane gas is almost the opposite of high cetane diesel, and would be a disaster to run in a diesel. because the reluctance to burn would lead to quite a fuel load in the cylinder before it finally lit off (from compression ignition), causing a potentially distructive knock.
I hope you two are'nt starting to flame.
Scott E
Ashwamegh 25/2 & ST12
Lister SR2 10Kw 'Long Edurance' genset on a 10 gallon sump/skid,
Onan 6.5NH in an old Jeager Compressor trailer and a few CCK's

kyradawg

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Re: WVO/SVO preheat via exhaust coil
« Reply #22 on: January 19, 2006, 06:22:52 PM »
.
Peace&Love :D, Darren
« Last Edit: August 03, 2006, 06:05:52 PM by kyradawg »

n2toh

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Re: WVO/SVO preheat via exhaust coil
« Reply #23 on: January 19, 2006, 08:40:51 PM »
my point being the cetane scale is the inverse of the octane scale.

your following quote is not true. "The higher a fuels cetane # the more knock resistant it is."

Did you mean to say the higher a fuels octane # the more knock resistant it is?
About 60 years is all it takes to make science fiction a reality.

kyradawg

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Re: WVO/SVO preheat via exhaust coil
« Reply #24 on: January 19, 2006, 09:10:33 PM »
 Peace&Love :D, Darren
« Last Edit: August 03, 2006, 06:05:10 PM by kyradawg »

Tom

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Re: WVO/SVO preheat via exhaust coil
« Reply #25 on: January 19, 2006, 10:02:02 PM »
I wonder, since it seems easy to measure cetane, if you have a large volume of low cetane vegie oil could the timing be adjusted for optimal performance?
Tom
2004 Ashwamegh 6/1 #217 - ST5 just over 3k hours.

kyradawg

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Re: WVO/SVO preheat via exhaust coil
« Reply #26 on: January 19, 2006, 10:34:24 PM »
 Peace&Love :D, Darren
« Last Edit: August 03, 2006, 06:04:03 PM by kyradawg »

Mr Lister

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Re: WVO/SVO preheat via exhaust coil
« Reply #27 on: January 20, 2006, 10:16:54 PM »
List,

When I tried rapeseed oil in the Lister 5/1 injector at 45 F, it squirted out with a 3 foot jet and hit the wall behind the engine.

I need to try this again with other injectors, but I fear that with cold veg oil you are never going to see the 40 degrees spray pattern that is typical of a properly set up injector on diesel fuel.

If anyone has a fairly new Listeroid and wishes to ty their injector on SVO, I would be intrigued to know how well it produces a spray.



Ken


rgroves

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Re: WVO/SVO preheat via exhaust coil
« Reply #28 on: January 20, 2006, 11:11:52 PM »
At 45 F, veg oil is far thicker than the fuel that injector is designed to spray. I'd really like to hear what results you see if you heat that same oil to 190 or so (to match the normal coolant temperature of the engine)  and see what it does.  Preheating is fairly simple and the equipment to do it isn't expensive.
That's the basic tactic Frybrid and Greasel are using in their auto conversions.

BTW, I haven't bought one of these but it looks very good.  Davco Technology offers a filter aimed squarely at the vegoil market.  http://www.davcotec.com/model234.htm   It circulates coolant around the fuel filter chamber, heating it ahead of the fuel pump.



 
List,

When I tried rapeseed oil in the Lister 5/1 injector at 45 F, it squirted out with a 3 foot jet and hit the wall behind the engine.

I need to try this again with other injectors, but I fear that with cold veg oil you are never going to see the 40 degrees spray pattern that is typical of a properly set up injector on diesel fuel.

If anyone has a fairly new Listeroid and wishes to ty their injector on SVO, I would be intrigued to know how well it produces a spray.



Ken


A country boy can survive - Hank Williams Jr.

BruceM

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Re: WVO/SVO preheat via exhaust coil
« Reply #29 on: January 22, 2006, 06:09:58 PM »
Ken, Just wondered if you've had a chance to try that same injector on warmed oil yet?
Inquiring minds...
Bruce