Stirling Heat differential Summary of Links

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

Stirling Heat differential Summary of Links

Post by craig___4888 »


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


Sizing
a Stirling engine

Temperature
differential to power ratio

3-5
kw Stirling for solar application

Article

Temp.
differential sources

stan.hornbaker
Posts: 532
Joined: Thu Jun 20, 2002 6:01 pm
First Name: William S.
Last Name: Hornbaker

Stirling Heat differential Summary of Links

Post by stan.hornbaker »

Our thanks to Craig for ferreting out the links in his post for easy access to the information referenced.
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

Post by craig___4888 »

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/moni ... rtemp.html
http://www.stirlingengine.com/bboard/q- ... ng+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.

stan.hornbaker
Posts: 532
Joined: Thu Jun 20, 2002 6:01 pm
First Name: William S.
Last Name: Hornbaker

Response to Stirling Heat differential Summary of Links

Post by stan.hornbaker »

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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