Hybrid Car – More Fun with Less Gas

Electricity from heat (continued) - Page 4

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Posted by Gordon on April 6, 2009, 8:11 pm
 


Or run a deep space probe.
The Voyager spacecraft were run with a thermo-pile heated by a
nuclear core.


Posted by Eeyore on April 7, 2009, 2:16 am
 


Gordon wrote:


Fortunately the cost is largely immaterial.

Graham



Posted by Eeyore on April 7, 2009, 2:10 am
 

harry wrote:


They are hopelessly inefficient.

Graham


Posted by Ken Maltby on April 7, 2009, 5:00 am
 

  You can increase a wood fire's efficiency dramaticly, by
enclosing it on three sides, with large stones.  Even more
so with a chimney.

  Luck;
      Ken



Posted by Eeyore on April 7, 2009, 10:35 am
 

Ken Maltby wrote:


You're tackling the problem at the wrong end.

Look, just forget it. It ISN'T going to happen commercially. End of story. A
high pressure steam generator driving a turbine like they use in coal fired
power stations is vastly more efficient. Gas Turbines running from natural
gas, better still too. GE hold the record with about 60% thermal efficiency
on those.

Graham


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