Converting heat into useful energy using separate closed loops
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United States of America Patent
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Oct 20, 1998
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N/A
app pub date -
Feb 9, 1996
filing date -
Feb 9, 1996
priority date (Note) -
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Abstract
Converting heat in a primary fluid (e.g., steam) to useful energy by multistage expansion of the primary fluid, heating of a multicomponent working fluid in a separate closed loop using heat of the primary fluid, and expansion of the multicomponent working fluid. The primary fluid in a vapor state is expanded in a first stage expander to obtain useful energy and to produce a partially expanded primary fluid. The partially expanded primary fluid stream is then separated into liquid and vapor components and split into a vapor stream (which is expanded in a second stage expander) and a further primary stream (which used to heat the multicomponent working fluid).
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