LPG project

[Creativity]

Dear all,
For a quite a time i was busy with a different designs of machines of many types as a hobby.For like 6 years now i sit and think in my free time about green energy and improvements on existing devices/systems.I was astonished to see on this forum a lot of idea's exactly as i had or have great i came here :)Now u will have one brain more to go with the quest.

In Europe it is quite common to use LPG(propan and butane mixture) to run cars.As such LPG fuel is build out of light carbonates and has a higher percentage of H than diesel or gasoline fuels do.It burns faster,cleaner,allows higher compression ratio's and is cheaper.Currently i run my 3rd car on LPG with a cost reduction of 40% comparing to gasoline.There are quite a few manufacturers of LPG systems in Europe,i don1t know about US or other continents.But here is the idea i am into right now,maybe helpfull to the LPG users.

I was thinking of letting LPG to undergo partial pyrolysis(theromlysis) by engine exhaust manifold heat.It would allow reuse of exhaust heat and improve overall efficiency of an engine.I would assist pyrolysis by a use of electric discharges inside of reaction chamber.Pyrolised fuel will possibly burn faster and even cleaner than LPG,due to high amount of free H2.Gaseous mixture would have to be cooled down,so volumetric efficiency of engine would not suffer.Cooling down is not a problem since my LPG system has a gas expanding chamber.LPG from the tank in liquid form travels to the expander,it leaves it in gaseous form(it requires heat from surrounding to go into gaseous form).It will be then feed up to the pyrolyser,from there to the heat exchanger( connected with the LPG expander).Cooled and pyrolised gas will be then feed to the engine.

great day to u all,
mr.Rain

[hartiberlin]

Wha do you think thepyrolised gas must be cooled ?
I think it is just the other way around.
The hotter this gas is the more efficiency you would get...

[ChileanOne]

Dear all,
For a quite a time i was busy with a different designs of machines of many types as a hobby.For like 6 years now i sit and think in my free time about green energy and improvements on existing devices/systems.I was astonished to see on this forum a lot of idea's exactly as i had or have great i came here :)Now u will have one brain more to go with the quest.

In Europe it is quite common to use LPG(propan and butane mixture) to run cars.As such LPG fuel is build out of light carbonates and has a higher percentage of H than diesel or gasoline fuels do.It burns faster,cleaner,allows higher compression ratio's and is cheaper.Currently i run my 3rd car on LPG with a cost reduction of 40% comparing to gasoline.There are quite a few manufacturers of LPG systems in Europe,i don1t know about US or other continents.But here is the idea i am into right now,maybe helpfull to the LPG users.

I was thinking of letting LPG to undergo partial pyrolysis(theromlysis) by engine exhaust manifold heat.It would allow reuse of exhaust heat and improve overall efficiency of an engine.I would assist pyrolysis by a use of electric discharges inside of reaction chamber.Pyrolised fuel will possibly burn faster and even cleaner than LPG,due to high amount of free H2.Gaseous mixture would have to be cooled down,so volumetric efficiency of engine would not suffer.Cooling down is not a problem since my LPG system has a gas expanding chamber.LPG from the tank in liquid form travels to the expander,it leaves it in gaseous form(it requires heat from surrounding to go into gaseous form).It will be then feed up to the pyrolyser,from there to the heat exchanger( connected with the LPG expander).Cooled and pyrolised gas will be then feed to the engine.

great day to u all,
mr.Rain

What you mention seems quite similar to what many car owners have done to their plain gasoline motors following the ideas of Paul Pantone. It works very well to decrease fuel consumption and reduce emissions, it's a shame that these simple modifications to use the exhaust heat to further ionize and recycle exhaust gases is not implemented by car manufacturers.

[Gearhead]

Wha do you think thepyrolised gas must be cooled ?
I think it is just the other way around.
The hotter this gas is the more efficiency you would get...

Heating propane may work for a turbine engine, but what are you going to do if the propane ignites inside the intake manifold of a piston engine?  Propane is easily vaporized.  Heating propane hot enough to pyrolyze it will probably cause carbon to be deposited.

Pyrolysis of wood on the other hand is a good trick. I have a lot of wood available.  The last propane I bought was $2.60 per gallon.  I burned over 100 gallons a week in my shop the last 3 weeks of January, $900 worth.

[Creativity]

@hartiberlin
the pyrolised gas would have to be cooled down as otherwise it takes a substantial volume in the intake manifold(less oxygen enters the engine).So volumetric efficiency would drop with hot (much expanded)gas,in fact it already is a problem with old LPG systems.propan-butan mixture is then in gaseous form feed to the engine resulting in 10-15% drop in engine performance,new systems feed engine with liquid-gives no drop in power and even rise at high rpm's due to faster and full burn.

@Gearhead

that carbonisation could be a problem,i checked the bond dissociation energy for C-H and C-C.It is less energy to brake one C-C bond than one C-H,so i hope by keeping energy density in pyrolyser at C-C dissociation level will assure low carbon.still some thinking must be done here around.