HKC I think you're on to something. It seems unlikely because the outward expansion energy of the exhaust gas is used up, leaving only heat. The engine is actualy forcing the exhaust gas out durring the upstroke.

So it would be changing piston force into exhaust pressure, then routed to another piston and changed back into piston force. It seems sorta wasteful if you consider 90% efficiency for both change overs.

I don't know, but I do think we do not pay enough attention the the heat and force remaining once the exhaust leaves the head.

I've often times thought about how to more efficiently use exhaust gasses. Like a boiler with a turbo attached, or heat to make a hydrogen fuel cell, or a steam engine, or a turbo powering a alternator from exhaust gas, maybe extra heat for your a/c, howabout turning your exhaust gas into electricity while you drive, store in a battery, which you can plug into your house and save on your power bill?

... of course if I can come up with that, then I'm sure those geniuses at the Hyundai concept factory in California have already turned them down for one reason or another.

 

See thats physically possible for one, and may actually do something for either power or efficiency.

Using the exhaust heat to boil water to create steam, then you can either use that steam to:

power a steam turbine to create boost pressure (you would have to store the pressure, then release when wanted, as it wouldnt come on suddenly like a turbo)

or

Use the steam to power a turbine that charges a battery for a hybrid type effect. This could be coupled with modern hybrid technology to be able to charge the battery in situations other than regenerative braking, which would further the efficiency of such engines since the heat itself is completely wasted

I like #2 better because its more likely to be used, because #1 would be so complicated compared to a TC/SC setup

 

yeah yeah, precisely!! the pressure would have to have an immense force afterall turbos do have lag and need a lot of movement to run, but you know there's so much heat coming out of the manifold that is just wasted. i mean scorching hot headers is a lot of wasted heat! what is energy? energy is heat. those two ideas are soooo good DTN and Alex01, it's a wonder why none of them are seriously tested. i mean if light particles can be amplified without convection, electrical currents can be amplified without convection (fuel cell), what's up with heat? not to mention if you store that heat and can build up pressure it there's no telling how many uses it can have not only in the car but everywhere else in the world. we could be saving soooooooooo much electricity but nope the f*cking companies want money and the earth is being destroyed silently.

Shit someone tell me why most cars still have regular bulbs instead of paired LED's! because the bulb can be replaced easily? well why don't they make grouped LED inserts? it costs more and takes more energy to make a bulb than it does pairs of LED's. Shit they have billions of LED's all over the world.

anyway there will no longer a need for reusing this energy because of superconductors. electricity that doesn't produce heat. i think it holds a certain temperature something like a Kelvin or something. i don't know much about them, but it's a wonder none of this technology is being adapted and sped up.

still engines are over 100 years old and i think we need to move on.

 

^^ once again, the conversion. exhaust heat -> heat water -> steam pressure -> turbine -> electricity is too long. each step looses 10% energy.

How about -> exhaust pressure -> spin turbine -> electricity & exhaust heat -> heat water & store (like a pressure cooker) -> turbine powers wheels on WOT

BTW... HKC, If I were you, i'd put stock in LED bulbs. You're going to see alot more in the future. In the past it's been common place to use a device which runs on 12V. LEDs require 2 devices (LED & Resistor) at minimum, don't put out as much light per unit, and are relatively new.

Automotive manufacturers have started reaizing that LEDs are more power efficient, cheaper to manufacture and can produce more light in a directed manner. Ford's 2005 mustang had the 3 color LEDs in the dashboard, but violated copyright laws somehow. It's only a matter of time before all automotive manufacturers start using LEDs. They can last well past a warranty.

 

The point of my setup is that it doesnt impede engine performance at all, and you dont have to change the flow of the exhaust, just bolt it onto the manifold itself. This way, if the setup somehow breaks it doesnt hurt the car's performance, if you've ever tried to drive a car with a seriously blown turbo you know what i mean.

The process isnt too long, its heat -> steam -> turbine generator and wouldnt create extra backpressure or risk the reliability of the car.

 

Actually from what I understand F1 engineers are working on making engines that re-use exhaust gas to create a virtually emission free engine

 

ok anyways the only good idea would be for having open tubes on one bank of cylinders... forcing exhaust gas into the motor would kill it.. but instead you have 4 cylinders fire and 4 that don't the 4 that dont port into the other 4 cylinders.... the biggest problem is that your powering 4 compression cylinders at all times all they do is force air out of the other bank of cylinders so you would have to have it set up half the motor high compression half the motor low compression. then have separate oil gallys and what not all kinds of work just for something that in the end you have about the same amount of power as a standard 4 cylinder motor... the purpose of a turbo is energy produced from wasted power...

in the end, bad idea to have 4 cylinders pressurize air and force it into 4 more cylinders cause your wasting energy. go more in depth with open mindedness, the concept for it to work while logical to make it work is impractical for all out power stand points. which is what the guy orriginally intended to try and make a point of.

you would have more luck taking an old air compressor pump off of a v8 motor for emission laws way back when rig it up where your ac compressor is and port it into the individual intake runners. while still a lot of work its not wasted power.... please don't do that in the idea of a cheep supercharger..... same concept different amount of power gained. yes its an air pump no it wouldn't create the power needed to reach 1psi of boost. its been tested and its in a book I read....

 

The conversions are exhaust heat -> steam pressure -> spin turbine -> generate electricity. but you could go exhaust pressure -> spin turbine -> generate electricity. Also, using this system, the heat could be removed mostly before it goes to the turbogenerator which would increase longevity. It could be at the end of the exhaust system.

The heat could be used more efficiently too like you said. It could be used to power a generator, but it would take more conversions.

Like run through a catalytic converter/heat exchanger manifold. Use that heat to prime the water for a hydrogen reaction (hot H2O+ electricity from the generator = H2 & O2), which could support better and cleaner combustion in the engine if added in the proper ammounts.

Or the heat could be run through the same manifold, pressure could be built up in a tank and stored to give the flywheel/transmission PTO a extra boost when you floor it to get the momentum from 0-5mph, which would reduce clutch wear. Or used for a slight boost on any WOT.

 

man my blinker fluid is low.. lmao.gif lmao.gif lmao.gif lmao.gif

 

The latest, get your DEI gear now!

http://www.cafepress.com/azmc/4042235

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