Method for power generation during the regasification of a fluid by supercritical expansion
AssigneeSiemens Energy Global GmbH & Co. KG
InventorSebastian Haas
Life of this patent
Estimating the term…
Abstract
An apparatus and method for power generation during regasification, having a tank for a cryogenic fluid, a first pump connected to the tank via a first line, a first heat exchanger connected to the first pump via a second line, and a second heat exchanger connected downstream of the first heat exchanger, and a first turbine connected immediately downstream of the second heat exchanger, wherein a third line branches off from the first turbine and opens into the first heat exchanger, and a fourth line branches off from this first heat exchanger and opens into the second line, wherein a second pump is connected into the fourth line.
Claims16
A device for power generation during regasification, comprising:
- a tank for a cryogenic fluid,
- a first pump which is connected to the tank via a first line,
- a first heat exchanger which is connected to the first pump via a second line and a second heat exchanger which is arranged downstream of the first heat exchanger, and
- a first turbine which is arranged directly downstream of the second heat exchanger,
- wherein a third line branches off from the first turbine and opens in the first heat exchanger and a fourth line branches off from this first heat exchanger and opens in the second line between the first pump and second heat exchanger upstream of the first heat exchanger,
- wherein a second pump is connected in the fourth line,
- wherein a third heat exchanger is connected in the second line and in the fourth line upstream of the second pump.
A method for power generation, comprising:
- bringing a fluid to a first pressure and consequently producing a high-pressure flow,
- combining the high-pressure flow with a second fluid flow which is greater than the high-pressure flow, into a total fluid flow,
- guiding the total fluid flow to a first heat exchanger, and heating the total fluid flow by the second fluid flow, resulting in a heated total fluid flow,
- subsequently further heating the heated total fluid flow in a second heat exchanger by introducing ambient heat and/or waste heat from other processes, resulting in a further heated total fluid flow,
- expanding the further heated total fluid flow in a first turbine to a lower but supercritical pressure, resulting in an expanded total fluid flow,
- dividing the expanded total fluid flow, which is discharged from the first turbine, into the second fluid flow and into a smaller third fluid flow,
- wherein the second fluid flow, after it has discharged heat to the total fluid flow, is brought to a pressure level of the high-pressure flow, and combined with the high-pressure flow upstream of the first heat exchanger,
- wherein the second fluid flow, before it is brought to the pressure level of the high-pressure flow, is further cooled by a third heat exchanger, wherein the high-pressure flow is heated.
Dependencies are inferred from the claim text.