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
Posted by Eeyore on April 7, 2009, 2:16 am
Fortunately the cost is largely immaterial.
Posted by Eeyore on April 7, 2009, 2:10 am
They are hopelessly inefficient.
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.
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