Hybrid Car – More Fun with Less Gas

Anybody know where to get a small steam turbine? - Page 6

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Posted by Morris Dovey on March 26, 2009, 4:06 pm
 
Tim Jackson wrote:

My apologies - I think I misunderstood what you were saying. Yes, I
understood that the re-radiation will be a problem - and no, I did not
have an adequate physics background to be able to quantify it.

A full kW into the engine wouldn't really be a bad starting point.
Obviously, more would be better (which is why I'm puzzling over ways to
make the tube [my hot head] both a better absorber and a poorer radiator).

In the real world, I have to work with whatever heat/temperature I get -
and if it's not enough for some particular purpose, scale up until it
/becomes/ adequate. The method isn't physics or engineering at its
finest, but then the overall problem doesn't seem to have captured the
interest of either of those communities.

The most dismaying aspect for me is that sometime in the near future I'm
going to need to shop for a torch and regulators; and learn to weld and
braze sufficiently to cobble this monstrosity together.

Hmm - I just realized that not only did the Stirling engine originate in
the UK, but so has much of the physics help I've gotten. :)

Thanks for posting - and for your patience and persistence!

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

Posted by Morris Dovey on March 26, 2009, 4:28 pm
 

For anyone running MS systems, I just uploaded a pair of quick and dirty
Fahrenheit->Celsius and Celsius->Fahrenheit converter programs to

    http://www.iedu.com/DeSoto/Misc/c2f.exe  and
    http://www.iedu.com/DeSoto/Misc/f2c.exe

Both are intended to run in a command window.

*nix users already the units program, and Google web search will convert
almost any value in any units to the corresponding value in any other
conforming units (try entering "convert c to furlongs per fortnight" for
a test case).

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

Posted by Morris Dovey on March 31, 2009, 11:02 am
 Morris Dovey wrote:

There were enough downloads to justify adding

    http://www.iedu.com/DeSoto/Misc/c2k.exe
    http://www.iedu.com/DeSoto/Misc/f2k.exe
    http://www.iedu.com/DeSoto/Misc/k2c.exe
    http://www.iedu.com/DeSoto/Misc/k2f.exe

So now we can convert temperatures every which way. :)

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

Posted by Jim Wilkins on March 31, 2009, 2:21 pm
 
Spreadsheets are a good simple way to handle problems of this general
nature and they give you considerable flexibility in formatting and
printing the results. Mine lists every degree Celsius from -40 to +100
and separately every 10 degrees C from -273 (0 Kelvin) to +1000C. I
wrote it as a program first and wasted a lot of paper and ink
experimenting with PRINT USING. If you don't have MS Office, this is a
good free substitute:
http://www.openoffice.org/

Jim Wilkins

Posted by sno on March 31, 2009, 5:59 pm
 Jim Wilkins wrote:

There is a freeware little program that is used by NASA that will
convert just about anything to anything....and you can make your own
other conversions easily....check it out....

http://joshmadison.com/article/convert-for-windows

have fun....sno


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