Method and turbine for expanding an organic operating fluid in a rankine cycle

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United States of America Patent

PATENT NO 9726047
APP PUB NO 20140363268A1
SERIAL NO

14373325

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Abstract

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A method and a turbine for expanding an organic operating fluid in a Rankine cycle includes the step of feeding the operating fluid to a turbine provided with a plurality of arrays of stator blades alternating with a plurality of arrays of rotor blades, to define corresponding turbine stages, constrained to a shaft which rotates on the respective rotation axis. The method also includes: a) causing a first expansion of the operating fluid in one or more radial stages of the turbine, b) diverting the operating fluid exiting from the radial stages in a direction axial and tangential with respect to the rotation axis, and c) causing a second fluid expansion in one or more axial stages of the turbine. Step b) corresponds to an enthalpy change of the operating fluid equal to at least 50% of the average enthalpy change provided for completing the fluid expansion in the turbine.

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Patent Owner(s)

Patent OwnerAddress
TURBODEN S R LVIA CERNAIA 10 BRESCIA I-25124

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bini, Roberto Brescia, IT 17 13
Gaia, Mario Brescia, IT 15 12

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