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Peakoil.com :: View topic - steam engines?
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steam engines?

 
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lotrfan55345
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PostPosted: Wed Mar 14, 2007 9:57 pm    Post subject: steam engines? Add User to Ignore List Reply with quote

http://www.autofieldguide.com/articles/070102.html

Over 90% efficiency? Almost no hydrocarbon emissions? hmmm.....
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master_rb
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PostPosted: Wed Mar 14, 2007 10:48 pm    Post subject: Re: steam engines? Add User to Ignore List Reply with quote

scam, try to go to the company's web site
http://www.enginion.com

every few weeks we hear about breakthroughs, new engines and stuff, it always turns out to be a scam
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davep
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PostPosted: Thu Mar 15, 2007 4:20 am    Post subject: Re: steam engines? Add User to Ignore List Reply with quote

Where does it claim it's 90% efficient?

The article says the enginion is a research project of IAV

http://www.iav.de/eng/index.php

They appear to be a serious German engineering firm.
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RdSnt
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PostPosted: Thu Mar 15, 2007 5:25 am    Post subject: Re: steam engines? Add User to Ignore List Reply with quote

Whether this particular example may be a scam isn't so important.
That steam and stirling engines should be seriously looked at in relation to Peak Oil is a no brainer. Why? Because they are external combustion engines.
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davep
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PostPosted: Thu Mar 15, 2007 5:09 pm    Post subject: Re: steam engines? Add User to Ignore List Reply with quote

Agreed, RdSnt.

For anyone not aware of the utility of an external combustion engine, it means you're not necessarily tied to petrol or diesel because any heat source may potentially be used.

A further benefit of the stirling engine is that it is the best at attaining the limits of the carnot (heat) cycle in theory. However, this seems quite difficult in practice as the engines are scaled up in size.
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lotrfan55345
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PostPosted: Thu Mar 15, 2007 8:59 pm    Post subject: Re: steam engines? Add User to Ignore List Reply with quote

I read the 90% efficiency off some BBC(?) article that linked to that website.

But that technology seems promising, I never knew external combustion engines were still being researched.
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RdSnt
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PostPosted: Fri Mar 16, 2007 6:58 am    Post subject: Re: steam engines? Add User to Ignore List Reply with quote

Thanks, appreciate that someone else understands this stuff.

Have you check out Kockum?
http://www.kockums.se/Submarines/submarinesmain.html

They seem to be at the leading edge of practical , high powered stirling engines.

What I find most intreging about the Stirling cycle is that it relies on a heat differential. Any heat differential, it doesn't have to be what we conventional think of. Meaning it doesn't necessarily have to be hot.

davep wrote:
Agreed, RdSnt.

For anyone not aware of the utility of an external combustion engine, it means you're not necessarily tied to petrol or diesel because any heat source may potentially be used.

A further benefit of the stirling engine is that it is the best at attaining the limits of the carnot (heat) cycle in theory. However, this seems quite difficult in practice as the engines are scaled up in size.

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