Power cycle and system for utilizing moderate and low...

Power plants – Motive fluid energized by externally applied heat – Power system involving change of state

Reexamination Certificate

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C060S517000

Reexamination Certificate

active

07065969

ABSTRACT:
A new thermodynamic cycle is disclosed for converting energy from a low temperature stream, external source into useable energy using a working fluid comprising of a mixture of a low boiling component and a higher boiling component and including a higher pressure circuit and a lower pressure circuit. The cycle is designed to improve the efficiency of the energy extraction process by recirculating a portion of a liquid stream prior to further cooling. The new thermodynamic processes and systems for accomplishing these improved efficiencies are especially well-suited for streams from low-temperature geothermal sources.

REFERENCES:
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patent: 4433545 (1984-02-01), Chang
patent: 4982568 (1991-01-01), Kalina
patent: 6735948 (2004-05-01), Kalina
patent: 6769256 (2004-08-01), Kalina
patent: 6910334 (2005-06-01), Kalina
patent: 6923000 (2005-08-01), Kalina
patent: 6941757 (2005-09-01), Kalina

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