Go Back   EcoModder Forum > EcoModding > The Unicorn Corral
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-05-2013, 07:53 AM   #1 (permalink)
EcoModding Lurker
 
Join Date: Oct 2013
Location: Sweden
Posts: 19

Felicia - '99 Skoda Felicia LXi, MPI Hatchback
90 day: 38.69 mpg (US)
Thanks: 0
Thanked 1 Time in 1 Post
Hydrocarbon Crack System

I need help to determine if this holds some truth or not.
Hydrocarbon Crack System. - David Icke's Official Forums

Could this be a valid mod?
If so, what is the tradeoff?

Or does this truley belong in the Unicorn Corral?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-05-2013, 01:04 PM   #2 (permalink)
Eco-ventor
 
jakobnev's Avatar
 
Join Date: Oct 2010
Location: sweden
Posts: 1,630

Princess - '92 Mazda MX-3 GS
House of Tudor
Team Mazda
90 day: 53.54 mpg (US)

Shirubāarō (*´ω`*) - '05 Toyota Prius Executive
Team Toyota
90 day: 54.88 mpg (US)

Blue Thunder - '20 Hyundai IONIQ Trend PHEV
Team Hyundai
Plug-in Hybrids
90 day: 587.16 mpg (US)
Thanks: 74
Thanked 701 Times in 444 Posts
Send a message via MSN to jakobnev
Enhörningsbajs.
__________________




2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
  Reply With Quote
Old 11-05-2013, 02:45 PM   #3 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
It only mixes fuel in with the gases blown through the crankcase so on a carbureted engine the mixture would be overly rich.
A FI engine will reduce the fuel injected by the same amount as evaporates from the bubbler; no gain, no loss. Unless the heated air burns before it reaches the combustion chamber; then it will be worse.

Cracking hydrocarbons? Whatever evaporates in the bubbler does not need cracking, it will burn well enough. Only heavy hydrocarbons would need cracking before burning well, but then they need to be heated much more than this.

If it has any net positive effect it must be due to preheating the mixture, mimicking a WAI, but with the added risk of explosion and producing large amounts of CO.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
The Following User Says Thank You to RedDevil For This Useful Post:
TexasCotton (11-06-2013)
Old 11-05-2013, 03:14 PM   #4 (permalink)
EcoModding Lurker
 
Join Date: Oct 2013
Location: Sweden
Posts: 19

Felicia - '99 Skoda Felicia LXi, MPI Hatchback
90 day: 38.69 mpg (US)
Thanks: 0
Thanked 1 Time in 1 Post
The concept seems to be that the vapors from the blubber is cracked into hydrogen.

If one keeps the theory abstract "Utilizing waste heat, to pre-digest petrol for greater efficiency", then I think it makes some sense.

I still don't know how to disprove this, or get it out of my head.
Explosions and CO risks makes me not want to attempt this myself though.
  Reply With Quote
Old 11-05-2013, 03:46 PM   #5 (permalink)
Master EcoModder
 
euromodder's Avatar
 
Join Date: Jul 2010
Location: Belgium
Posts: 4,683

The SCUD - '15 Fiat Scudo L2
Thanks: 178
Thanked 652 Times in 516 Posts
Have a look at the temperatures used for steam-cracking hydrocarbons ... 850°C .
It's done without oxygen, for obvious reasons .

The crankcase vent is lead to the intake in many cars these days, in order not to let HC vapours get into the air, but to burn them instead.
__________________
Strayed to the Dark Diesel Side

  Reply With Quote
Old 11-06-2013, 02:16 PM   #6 (permalink)
Master EcoModder
 
Join Date: Nov 2012
Location: San Diego, California
Posts: 982
Thanks: 271
Thanked 385 Times in 259 Posts
The idea holds merit.

How it is applied in this case leaves much to the imagination.

As mentioned in above replies, thermal de-polymerization takes relatively high temperatures, pressures, proper C-O balance and residence times. The device in question provides little if any of the needed parameters to produce hydrogen gas and carbon monoxide ( the mixture being traditionally called coal gas or in modern parlance, syn-gas).

The only item that may be of help is the copper tubing wrapped around the exhaust. Copper, as well as iron, nickel and other base metals can act as a catalyst in the breakdown of carbon chains dramatically reducing the temperatures needed.

Another may be the content of alcohol in the fuel itself. Methanol and Ethanol decompose much more readily than the rest of the fuel constituents. A significant percentage of ethanol (5-15%) as found in some USA markets could provide a useable production stream of syn-gas allowing effective augmentation of the combustion cycle.
  Reply With Quote
Old 12-01-2013, 12:56 PM   #7 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 536 Times in 384 Posts
David Icke used to be a professional footie plater, and then a sports presenter for the BBC here in the UK. Then was a joint leader of the Green Party, then resigned and decided he was the new son of god complete with a shell suit :



Now he just fills stadiums with his ideas of 9 foot shape shifting lizards running the earth, or something.

Earns a fortune apparently, god knows why...

__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com