by shortonsense » Sat 21 Nov 2009, 16:58:34
$this->bbcode_second_pass_quote('Quinny', 'S')o where are these 100% efficient machines you're describing?

He didn't describe any of those.
Words really don't do the Laws of Thermodynamics justice, particularly when its being debated by those who use heat, energy and work near synonymously.
The beauty of the original article I quoted is that it attacks the problem from a different angle, breaking things up into that which has value, like energy contained within a particularly concentrated or useful form ( like a laser ), and the vastness of less concentrated energy forms ( like sunlight ).
CHP ( combined heat and power ) plants use the heat that would otherwise be wasted, much like a cars radiator, and does something useful with it instead. Such systems do not require, and certainly can't achieve ( as demonstrated by the Laws of Thermodynamics ) a 1:1 ratio of conversion. And certainly yesplease said no such thing about a 100% efficient machine. Why is that strawman necessary?