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Old 06-20-2008, 07:58 AM   #11
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putting in a steam stroke in a normal IC seems overly complicated. The best use of steam (or some other liquid with a low boiling point) would be in an IC-electric hybrid. A closed loop system (rankine) could power a small generator to replenish the batteries. The IC engine produces so much heat, it seems silly not to utilize a some of it.
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Old 06-20-2008, 08:31 AM   #12
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There are other liquids that could be used other than water, Butane or neo-Pentane come to mind.

Both of those can be under pressure and still use just heat from the normal cooling system. Both can be condensed using your standard a/c condenser and you won't have to bother with working around a super hot exhaust system.

On top of that, you can use hot water off the stove to test the unit before you ever even install it in the car to verify it'll work.

If you are going to be using the exhaust to heat the liquid I'd recommend going to a muffler shop and getting an old used one and gutting it for the tubes to be run back and forth in. Putting the steam pipes around the cat may cool it to a point that it isn't as effective and wrapping them around the exhaust pipe means the system will take a while to get up to temp and might not be able to keep up with the level of heat your steam system will need. Get the copper pipes directly into the line of fire.
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Old 06-20-2008, 10:11 AM   #13
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If you want Combined Cycle, Smokey Yunick's hot vapor engine is a more practical approach, since a condenser isn't needed. See the thread below.
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Old 06-20-2008, 06:08 PM   #14
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Quote:
Originally Posted by dkjones96 View Post
There are other liquids that could be used other than water, Butane or neo-Pentane come to mind.
Those are not free or cheap, water is

What also reduces the coking deposits on the valves and spark plugs, and will help reduce cylinder temperatures so no holly pistons.

I found this article if anybody is interesting, its about Mr Garrett, the turbo man I assume.

Link

He has a patents on it, from the 1930's
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