Apparatus and process for generation of energy by organic rankine cycle
AssigneeExergy S.P.A.
InventorsClaudio Spadacini, Dario Rizzi, Alessandro Barbato, Lorenzo Centemeri
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Abstract
An apparatus for generation of energy through organic Rankine cycle comprises a heat exchanger (3) to exchange heat between a high temperature source and an organic working fluid, so as to heat and evaporate said working fluid, an expansion turbine (4) of the radial-outflow type, fed with the vaporised working fluid outflowing from the heat exchanger (3), to make a conversion of the thermal energy present in the working fluid into mechanical energy according to a Rankine cycle, a condenser (6) where the working fluid outflowing from the turbine (4) is condensed and sent to a pump (2) and then fed to the heat exchanger (3).
Claims15
An ORC apparatus for generation of energy by organic Rankine cycle, comprising:
- at least one heat exchanger (3) to exchange heat between a high temperature source and an organic working fluid, so as to heat and evaporate said working fluid;
- at least one expansion turbine (4) fed with the vaporised working fluid coming out of the heat exchanger (3), to make a conversion of the thermal energy present in the working fluid into mechanical energy according to a Rankine cycle;
- at least one condenser (6) where the working fluid outflowing from said at least one turbine (4) is condensed and sent to at least one pump (2);
- the fluid is then fed to said at least one heat exchanger (3);
- characterised in that the expansion turbine (4) is of the radial-outflow type wherein, in a way between an inlet (15) and an outlet (16) of the expansion turbine (4), the working fluid flow moves away, while expanding, from a rotation axis (X-X) of said expansion turbine (4).
An ORC process for generation of energy by organic Rankine cycle, comprising:
- i) feeding an organic working fluid through at least one heat exchanger (3) to exchange heat between a high temperature source and said working fluid, so as to heat and evaporate said working fluid;
- ii) feeding the vaporised organic working fluid oufflowing from the heat exchanger (3) to at least one expansion turbine (4) to make a conversion of the thermal energy present in the working fluid into mechanical energy according to a Rankine cycle;
- iii) feeding the organic working fluid outflowing from said at least one expansion turbine (4) to at least one condenser (6) where the working fluid is condensed;
- iv) sending the organic working fluid oufflowing from the condenser (6) to said at least one heat exchanger (3);
- characterised in that in step ii) the expansion turbine (4) is a radial-outflow turbine and the way followed by the working fluid from an inlet (15) to an outlet (16) of the expansion turbine is a radial-outflow way.
Dependencies are inferred from the claim text.