Stirling Heat differential Summary of Links

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Stirling Heat differential Summary of Links

Postby craig___4888 » Mon Jan 19, 2009 5:49 pm


Hi Stirling Enthuisists.



I have been looking at the many links on Heat differential, and
thought is nice to centralise them in one place via a set of links



href="http://www.stirlingengine.com/bboard/q-and-a-fetch-msg.tcl?msg_id=00003n&topic_id=4&topic=Power-producing+Stirling+engines">Sizing
a Stirling engine


href="http://www.stirlingengine.com/bboard/q-and-a-fetch-msg.tcl?msg_id=00004J&topic_id=4&topic=Power-producing+Stirling+engines">Temperature
differential to power ratio


href="http://www.stirlingengine.com/bboard/q-and-a-fetch-msg.tcl?msg_id=00004k&topic_id=4&topic=Power-producing+Stirling+engines">3-5
kw Stirling for solar application


href="http://www.gulfcoastchp.org/Technologies/Power/StirlingEngines">Article


href="http://www.stirlingengine.com/bboard/q-and-a-fetch-msg.tcl?msg_id=00003Q&topic_id=4&topic=Power-producing+Stirling+engines">Temp.
differential sources


craig___4888
 
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First Name: Craig
Last Name: Lambie

Stirling Heat differential Summary of Links

Postby stan.hornbaker » Mon Jan 19, 2009 6:34 pm

Our thanks to Craig for ferreting out the links in his post for easy access to the information referenced.
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Response to Stirling Heat differential Summary of Links

Postby craig___4888 » Tue Jan 20, 2009 2:52 pm

FYI a question I posed to a Stirling Engineer.


Hi there,

As experts in your field, I would like to ask your opinion on the
viability of the following:

A Stirling Engine that is powered by decomposing Organic waste, of
which heat differential is between 20-40 d C.
http://www.css.cornell.edu/compost/monitor/monitortemp.html
http://www.stirlingengine.com/bboard/q-and-a-fetch-msg.tcl?msg_id=0000O6&topic_id=4&topic=Power-producing+Stirling+engines

I was thinking a small Stirling engine could produce some power from
this differential, but the amount I don't know?

Do you think this is a viable idea? What sort of power output would
the system have?

I look forward to your reply.

Regards

Craig
################################

Mr. Lambie,

The merit test should be done on a pure thermodynamic concepts, even without the Stirling in mind. As such, 20C to 40C difference is very very low to operate a machine, any machine. If it can be made to run (???) it will probably be extremely big and inefficient for the amount of power produced.

Sunpower, Inc.

craig___4888
 
Posts: 4
Joined: Sat Nov 10, 2007 5:16 pm
First Name: Craig
Last Name: Lambie

Response to Stirling Heat differential Summary of Links

Postby stan.hornbaker » Tue Jan 20, 2009 7:06 pm

It is like Sunpower stated. Don't expect much from a 40 to 50 deg. C temperature differential. Maybe just enough to run the engine at no load. Take the time to read through some of the previous threads to get a better sense of what is involved.
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