Quote:
Originally Posted by redpoint5
Can non-boiling heat sources, say 150F water, be used in a heat pump to concentrate the heat, boil water, and turn a steam turbine?
I know heat pumps are always claiming something like 300% efficiency.
Question is, does the power output from the steam turbine exceed the power input to the compressor?
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Typically,a steam-turbine operates with 500-degree F superheated steam.
With any given 'sink' temperature,the best efficiency is with the highest temp 'source'.
A heat pump (reversed air conditioning system) may draw its efficiency comparison from a electric resistance heater.