Assertion: steam engine's use | /r/CapableOf | range for the otec ocean power proposal
Facets:
value: from 3 percent
type: OTHER
Source sentences:
text: The efficiency of various heat engines proposed or used today ranges from 3 percent (97 percent waste heat) for the OTEC ocean power proposal through 25 percent for most automotive engines, to 45 percent for a supercritical coal plant, to about 60 percent for a steam-cooled combined cycle gas turbine.