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Go Back   TDIClub Forums > VW TDI Discussion Areas > Alternative Diesel Fuels (Biodiesel, WVO, SVO, BTL, GTL etc)

Alternative Diesel Fuels (Biodiesel, WVO, SVO, BTL, GTL etc) Discussions about alternative fuels for use in our TDI's. This includes biodiesel WVO (Waste Vegetable Oil), SVO (Straight Vegetable Oil), BTL (Biomass to Liquid), GTL (Gas to Liquids) etc. Please note the Fuel Disclaimer.

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Old July 13th, 2012, 12:35   #91
Mike Piles
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Quote:
Originally Posted by darkscout View Post
Thanks
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Old July 13th, 2012, 12:52   #92
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A suggestion, if I might?

All banned topics should be in a clear, concise, bulleted list at the top of the first page in the first post.

It's not very friendly to folks to have to read through 7 pages of a thread just to know what the ground rules are.
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Old July 13th, 2012, 17:26   #93
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*****ing about the banlist is now banned.



J/K!

I'll try and clean it up in a few days...busy at work now.
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Old July 13th, 2012, 19:11   #94
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Ya but---NO BUT'S
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Old December 13th, 2013, 18:23   #95
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I'm a new member here and I have to say you guys are doing a fine job keeping this place running well. I have been pulling wrenches for 35 years and in my shop there is no talking about anything that isn't making us money, even during breaks. Some things are best "taken outside".

Cheers from the Great White North!
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Old May 27th, 2014, 19:56   #96
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to A L L the HHo skeptics, non-believers, naysayers, and just out right haters
http://youtu.be/Wb2EYQ7at4c
www.dynacert.com

ARGUE THIS: Pepsi saved 3.3 million in fuel costs. Discussion - over.

New discussion you will ask "How do I get one?"
If I can do it, so can you. Big oil or the guv-ment sure is not going to help you. this is my first shot at it.
http://youtu.be/tvk2UomI5VE
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Old May 27th, 2014, 19:59   #97
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Not sure about my 3.3 number but watch the video
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Old November 15th, 2014, 17:29   #98
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Originally Posted by FLMan View Post
You know, if you really think deeply about all these "wonder fuel savers"

If they were really so great, the would be installed on new vehicles at the factory, and even mandatory by law. Geez, I hope my friend did not fall for this yet.
Preach on, brother! Saw one such device advertised at a major truck stop chain when it first came out. I did a quick calculation based on some of the "bullet point" claims - if the were all true, it would be a "bolt-on" improvement of a full mile per gallon (check my vehicle list as to why this is VERY significant). Same device is now (about 6 years later) being thrown in free with an oil change at that same chain.

The trucking industry lives and dies by a fraction of a mile per gallon. If I invented a device that produced a "bolt-on" 1 MPG improvement, I wouldn't be manufacturing them and trying to sell them through truck stops - I'd segment the market, and auction off exclusive rights in each market segment (e.g. "North America on-road"). If one of the major truck manufacturers could offer a clear 1 MPG advantage over their competitors, they could boost the price of their trucks by $50,000 per unit, and it would be money well spent, so even that one segment of the market would be worth a fortune. Instead of needing to keep building and marketing the devices, I'd be sitting on the beach with a cold beer in one hand and a hot blonde in the other.

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Originally Posted by Keith_J View Post
With respect to hydrogen, they fail to understand there is already far more hydrogen contained in the hydrocarbon primary fuels powering their contraptions. Well, save Stan Meyer's mythical dune buggy, stolen by "sharks" after Stan was "poisoned" by Arab oil Sheiks, the military, Big Oil...
I'd put the military in a different category - they'd slap a "top secret" label on it to keep OTHERS from finding out, but they'd actually USE it. Can you imagine how much it would ease logistics problems if they could significantly improve the fuel economy of the M1A1 tank, the Bradley IFV, the Humvee, etc?

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Originally Posted by wair View Post
I occasionally have access to jet A fuel, does anyone have a formula to add a lubricant to the fuel so it can be safely used in the turbo jetta?
Do you have an oil furnace at home? No need to add a lubricant, and since a furnace doesn't operate on public highways it would be a LEGAL use for fuel that hasn't had road taxes paid. Bear in mind that there are 2 "families" of jet fuel - the kerosene-based (includes Jet A), and the naptha-based (includes Jet B). In a turbine engine (and probably in an oil-burning furnace) they'll both work. I wouldn't want to get Jet B anywhere NEAR a diesel engine. Also, does your source of "sump fuel" work on piston aircraft as well? If so, you could have contamination with 100LL avgas, and I'm sure you've seen threads about what happens when a TDI gets fed gasoline-contaminated fuel.

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Originally Posted by eigerzoom View Post
submarines can provide oxygen enough for a large crew and remember that there is twice as much hydrogen when split from water...subs expel all this back into the ocean
ratheon builds the electrolysis units for subs and knowing someone who works there i have been told they have fueled a hummer with one of the units providing the gas on demand....thats not stored or compressed...just a live reaction from water
But WHERE were they getting the electricity to power the unit they were using to fuel the hummer? AFAIK, except for a few specialized units (e.g. rescue vehicles, SEAL tow vehicles, etc), all subs in current U.S. Navy inventory get their primary power from a nuclear reactor (some may have a diesel on board as an emergency backup to get to port in the event of a reactor failure, but they'd have to run on the surface to use it). You can be damn sure that the hydrogen from the electrolysis unit is NOT being used to re-assemble the fission products back into U235.
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Old November 15th, 2014, 18:31   #99
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they are getting electric from the alternator. its running anyway. I think very few vehicles are sucking up all he juice their alternators put out,unless they have some ghetto blasters going.
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Old November 15th, 2014, 18:36   #100
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The more you load the alternator, the harder the engine has to work and you burn more diesel. No free electricity.
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Old November 15th, 2014, 18:40   #101
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Quote:
Originally Posted by rwehuman View Post
they are getting electric from the alternator. its running anyway. I think very few vehicles are sucking up all he juice their alternators put out,unless they have some ghetto blasters going.

Back again, I see. Tread lightly.
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Old November 16th, 2014, 05:01   #102
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Originally Posted by rwolff View Post
But WHERE were they getting the electricity to power the unit they were using to fuel the hummer?
Quote:
Originally Posted by rwehuman View Post
they are getting electric from the alternator. its running anyway. I think very few vehicles are sucking up all he juice their alternators put out,unless they have some ghetto blasters going.
IIRC, diesel engines are only 40% efficient. Assuming that the alternator is 100% efficient, your energy budget goes as follows:

For each 100 joules worth of hydrogen, the engine produces 40 joules worth of mechanical energy (dumps the other 60 joules as heat). The alternator turns that into 40 joules worth of hydrogen to fuel the engine. Unless you supply energy from SOMEWHERE (most likely the battery), it ain't gonna run for long. You'd get better results by just running the vehicle using the starter. Law of conservation of energy rears its ugly head.

Those electrolysis units work great for their designed purpose (providing oxygen for a submarine crew without the need to surface and become detectable, in an environment where there's plenty of electricity coming out of the reactor to handle "hotel loads"). Without the "plenty of electricity available", you run into trouble. As Mr. Chips ('70s DIY show on CBC) would say, you're using an "American screwdriver" (i.e. using a hammer to drive screws).
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Old November 16th, 2014, 08:39   #103
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And the alternator isn't 100% efficient, so you are losing some more efficiency there. Better to just burn diesel to move the car.

Now if you could recover some energy with regenerative braking, store it in a capacitor, and use that to run the generator...
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Old November 16th, 2014, 09:00   #104
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Quote:
Originally Posted by philngrayce View Post
And the alternator isn't 100% efficient, so you are losing some more efficiency there. Better to just burn diesel to move the car.

Now if you could recover some energy with regenerative braking, store it in a capacitor, and use that to run the generator...
... or drive the wheels directly, which would be way more efficient once you factor in all of the losses going from mechanical to electrical to gas to combustion to propulsion.

But hey, when it's free energy, you can be as inefficient as you want, right?
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Old November 16th, 2014, 11:20   #105
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I wish a basic understanding a thermodynamics and energy conservation is required in high schools...
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