i currently have a test car (1.4 306)

and i plan to try something rather,emmet brown.

hear me out and give me some advice/critasisms here.

Genral idea.
boil water on your exhuast to make high pressure steam. pump it into turbine attached by a belt to the engine. thus recycling otherwise waste heat energy back into kinetic energy

bit more complicated explanation.
i plan to remove the power steering pump to provide an easy mounting point for the tirbine hopfully using similar belts and pulleys.
i would like to try a hybrid tesla turbine (they seem simple and reletivly effficient compact etc)

the steam side will be a closed loop system with a reseviour, condensor, feed pump and boiler coil wrapped around the exhaust pipe. there will be a bypass/blow of valve for when not in use and an electric solenoid will controll flow (on/off)

i hope to gain 10bhp. i havnt seen anythign like this done before. i work with large scale fridge and ac systems so i know a bit about highpressure systems and think it may have its merits.

as i said this will be a test done on my 1.4 as a proof of concept i dont plan on butchering the gti just yet.

my main driving point for this route of crazyness was wen i was told less than half of petrols chemical energy is released as kinetic the rest is heat.

so what do you guys reacon?

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the world is changed by people in sheds

I reckon you've clearly taken a pound of crack and need to give it up.

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Okay, I'm sold on the idea.

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I'm sure someone's already done this before as a project, I'll see if I can find it.

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Love it Owain, especially the rallye stripes!

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Chris
1999 China Gti6 Supercharged [Fun car] >>Project Thread<<
2000 Bianca 306 Diesel [Work runabout]

Obviously I tried getting Pro Race 1.2s, but they didn't have them in the right offset and hubcentric spacers are well pricey.

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''Oh, it does handle like a golf!'' Why drive a Golf....when you can drive a GTi-6?

i was stoned and i did go to bed after i posted it

in heinsight i dont think it could actually be classed as a supercharger. more like a steam turbine engine assistor or somehting like that.

think about it more logically. if your cars 50% effecient that means theres the same amount being wasted as heat. so my hopeful 10bhp is a piddly figure. effectivly i could get another 75bhp out of my 1.4. i know in the real world it will be nowhere near that.
but still i think waste heat recovery is an avenue worth looking down.

i know the other 50% of heat energy isnt all located in the exhaust but i still reacon there enough there to run a fair sized turbine.

as for maintainging throttle speed im clueless. i was hopeing a tesla turbine would with its unique and efficient design just work regardless. failing that i could link up a regulator valve to match throttle speed. (im pretty good with my high pressure gas systems being a fridge and ac engineer)

i understand untill the exhuast is hot enough to produce high pressure steam the turbine attached by a fan belt ancilary will have a parasitic effect. this should be well overcome the steam kicks in

also tesl turbines can be ran in a closed loop system. meaning it should be reasonably compact. i have removed my battery so ther plenty of space there for stuff.

im hoping to do somethign a bit weird here. if it works ive done something rather unseen before.

the world is changed by men in sheds not laboratories

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the world is changed by people in sheds

I can make you some, but by the time they arrive they'll have invented diesel-electric.

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I am absolutely convinced this is a great idea. Have you considered harnessing the wasted sonic energy too? You could weld a bass bin on the end of the zorst and in a clever reversal of technology convert the noise into electricity. SERS.

Get in your shed now and load the bong. We are waiting.

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Hens teeth rocking horse poo Cossack Ph1.3

When did you last see a portable steam turbine power station? I want one!

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www.gyroscope.com

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the world is changed by people in sheds

I think if we hook a few of those up to the national grid instead of the coal powered plants, there's gonna be a lot of disappointed people when they flick the kettle on in the middle of *insert favorite program here*


Lets think, the small(ish), fairly efficient old double-compound action steam traction engines weighed what, about 7-10 tons? And were rated at a constant-use of 4 or 5hp?
Now, even if you let them build pressure reserves up and ran at a loss (i.e, using more steam than you're producing), you could boost that at peak to about 40hp or so, for a few minutes, until your pressure dropped off.
Thats with a boiler the size of your car?

Your other problem with recovering the heat energy out of the exhaust, is you ideally want to collect it as close to the head as possible, and if you do manage to do that anywhere near to the energy extraction you need, it's going to mean your cat never gets hot enough to work properly.

You might, just might, be able to run the alternator (or an auxillary alternator) off a combination of the water jacket heat and exhaust heat, as BMW have been hoping to do, although in their case it's hooked up to an electric assist unit on a turbocharger which boosts the effiecency of the engine too. And they haven't got it to work properly yet either. And it weighs a shitload.

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