Doug Houseman wrote:
In article ,
....

Common steam plants in use today, built years ago - are in the 40-42
percent thermal efficiency range. Newer prototype plants have hit over
60 percent. I doubt the prototypes will ever be built full scale with
that level of efficiency.
....

Who are those? Gas combined-cycle turbines, maybe?

Sure not coal-fired; current super-critical units are just now at around
the 42% numbers...

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