EP4350129B1 - System zur energieerzeugung mit einem organischen rankine-zyklus und integriertem absorptionszyklus - Google Patents

System zur energieerzeugung mit einem organischen rankine-zyklus und integriertem absorptionszyklus Download PDF

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Publication number
EP4350129B1
EP4350129B1 EP23201246.8A EP23201246A EP4350129B1 EP 4350129 B1 EP4350129 B1 EP 4350129B1 EP 23201246 A EP23201246 A EP 23201246A EP 4350129 B1 EP4350129 B1 EP 4350129B1
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EP
European Patent Office
Prior art keywords
cycle
condenser
evaporator
absorption
source
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Active
Application number
EP23201246.8A
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English (en)
French (fr)
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EP4350129C0 (de
EP4350129A1 (de
Inventor
Hai Trieu Phan
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Publication of EP4350129C0 publication Critical patent/EP4350129C0/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/02—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a liquid, e.g. brine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/04—Heat pumps of the sorption type

Definitions

  • the present invention relates to an energy production system combining an organic Rankine cycle and an absorption cycle.
  • the invention will find its application more particularly in an objective of energy recovery and optimization of the electrical production yields of an ORC cycle.
  • Fluidly connected or “fluidically connected” means when a line provides a connection through or in which a fluid circulates.
  • the system comprises an intermediate circuit 300 capable of receiving an intermediate fluid.
  • the intermediate circuit 300 is a fluid circulation loop, preferably in a closed circuit.
  • the intermediate circuit 300 is configured to ensure the thermal connection between the ORC cycle 100 and the absorption cycle 200.
  • the intermediate circuit 300 is intended to supply the ORC cycle 100 with heat rejected by the absorption cycle 200.
  • the heat rejected by the absorption cycle 200 by the absorber 202 and/or the condenser 204 is transmitted to the ORC cycle 100 by the intermediate circuit 300.
  • the heat is advantageously transmitted to the preheating device of the ORC cycle 100 and in particular to the first preheating exchanger 102.
  • the intermediate circuit 300 ensures the fluid circulation of the intermediate fluid successively in the absorber 202 and/or the condenser 204 and in the preheating device, more precisely in the first preheating exchanger 102.
  • the intermediate fluid enters the absorber 202 at a temperature of the order of 35°C and leaves it at a temperature of the order of 58°C.
  • the intermediate fluid enters the condenser 204 at this temperature and leaves it at a temperature of the order of 75°C.
  • the intermediate fluid circulates in the preheating device of the ORC cycle 100, in particular in the first preheating exchanger 102. Depending on the needs of the ORC cycle, the intermediate fluid transmits more or less heat to the ORC cycle 100.
  • the first intermediate exchanger 301 completes this thermal recovery.
  • a recovery fluid circulates in the first intermediate exchanger 301.
  • the recovery fluid may be a cooling source such as an air flow from a cooling tower or an air heater.
  • the recovery fluid is intended to supply a domestic hot water network. This arrangement makes it possible both to use all of the thermal energy rejected by the absorption cycle 200 and to ensure that the fluid intermediate can once again play its function as a cold source with the absorber 202 and/or the condenser 204.
  • the intermediate fluid is chosen from water or oil.
  • the intermediate circuit 300 comprises a fluid connection N arranged between the first intermediate exchanger 301 and the absorber 202 to ensure the circulation of the intermediate fluid from the outlet of the first intermediate exchanger 301 to, preferably directly, the inlet of the absorber 202.
  • the intermediate circuit comprises a fluid connection O arranged between the absorber 202 and the condenser 204 to ensure the circulation of the intermediate fluid from the outlet of the absorber 200 to, preferably directly, the inlet of the condenser 204.
  • the system comprises an additional thermal connection between the ORC cycle 100 and the absorption cycle 200.
  • This additional thermal connection is in addition to the thermal connection provided by the intermediate circuit 300.
  • the system comprises a thermal connection between the second evaporator 205 of the absorption cycle 200 and the first condenser 106 of the ORC cycle 100.
  • the thermal connection is advantageously provided by a cold source 501 from the second evaporator 205 of the absorption cycle 200 to the first condenser 106 of the ORC cycle. This arrangement is particularly useful for ensuring a sufficiently low cold source temperature 501 at the first condenser 106 regardless of the climatic conditions.
  • the condenser 106 of the ORC cycle requires cooling to condense the steam leaving the expander 105.
  • the absorption cycle 200 therefore provides additional cooling through thermal coupling.
  • the second evaporator 205 of the absorption cycle 200 is used to cool the cold source 501 of the first condenser 106 of the ORC cycle 100.
  • a source to be cooled 500 circulates beforehand in the second evaporator 205 to ensure the evaporation of the working solution of the absorption cycle 200.
  • the heat source 500 transfers thermal energy to the absorption cycle 200 and emerges cooled from the second evaporator 205 in the form of a cold source 501.
  • the cold source 501 supplies the first condenser 106 to allow optimal condensation of the working fluid.
  • the system comprises a fluid connection P arranged to penetrate into the second evaporator 205 and ensure the entry of the first source to be cooled 500 into the second evaporator 205.
  • the system comprises a fluid connection Q arranged between the second evaporator 205 and the first condenser 106 to ensure the circulation of the cold source 501 from the outlet of the evaporator 205, preferably directly, to the inlet of the condenser 106.
  • the system comprises a fluid connection R ensuring the exit of the cold source 501 from the condenser 106.
  • the condenser 106 may comprise an additional cold source.
  • the source to be cooled 500 comes from a cooling circuit conventionally used for cooling an ORC cycle.
  • the source to be cooled 500 is chosen from an air flow coming from an air heater or a cooling tower.
  • the source to be cooled 500 and the recovery fluid 502 come from the same cooling circuit supplied by an air heater or a cooling tower.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Claims (12)

  1. Energieerzeugungssystem, Folgendes umfassend:
    - einen organischen Rankine-Zyklus (100) (ORC), umfassend eine erste Zirkulationsschleife (101) eines ersten Arbeitsfluids, umfassend eine Vorheizvorrichtung, einen ersten Verdampfer (104), einen Expander (105), einen ersten Kondensator (106) und eine erste Pumpe (107),
    - einen Absorptionskreislauf (200), umfassend eine zweite Zirkulationsschleife (201) für ein Arbeitsfluid, die einen Absorber (202), einen Generator (203), einen zweiten Kondensator (204), eine zweite Pumpe (208) und einen zweiten Verdampfer (205),
    dadurch gekennzeichnet, dass das System einen Zwischenkreis (300) umfasst, der geeignet ist, ein Zwischenfluid aufzunehmen und die thermische Verbindung des ORC-Zyklus (100) und des Absorptionszyklus (200) sicherstellt und auf dem der zweite Kondensator (204), der Absorber und die Vorwärmvorrichtung angeordnet sind.
  2. System nach dem vorhergehenden Anspruch, wobei der Zwischenkreislauf (300) einen ersten Zwischenwärmetauscher (301) umfasst, der eine Wärmeübertragung zwischen dem Zwischenkreislauf (300) und einem Rückgewinnungsfluid (502) sicherstellt.
  3. System nach dem vorhergehenden Anspruch, wobei das Rückgewinnungsfluid (502) aus einem Lufterhitzer oder einem Kühlturm stammt.
  4. System nach Anspruch 2, wobei das Rückgewinnungsfluid (502) dazu bestimmt ist, einen Warmwasserkreislauf zu speisen.
  5. System nach einem der vorhergehenden Ansprüche, wobei der zweite Verdampfer (205) und der erste Kondensator (106) thermisch so verbunden sind, dass der zweite Verdampfer (205) seine Kälteproduktion an den ersten Kondensator (106) überträgt, der die Kondensation des ersten Arbeitsfluids im ersten Kondensator (106) sicherstellt.
  6. System nach dem vorhergehenden Anspruch, wobei das System eine Kältequelle (501) umfasst, die die thermische Verbindung des zweiten Verdampfers (205) des Absorptionszyklus (200) mit dem ersten Kondensator (106) des ORC-Zyklus (100) sicherstellt.
  7. System nach einem der beiden vorhergehenden Ansprüche, wobei der Absorptionszyklus (200) eine zu kühlende Quelle (500), die den zweiten Verdampfer (205) speist, und eine kalte Quelle (501) am Ausgang des zweiten Verdampfers (205) zur Speisung des ersten Kondensators (106) umfasst.
  8. System nach einem der Ansprüche 1 bis 5, wobei der erste Kondensator (106) und der zweite Verdampfer (205) in einem gemeinsamen Wärmetauscher zwischen dem ORC-Zyklus (100) und dem Absorptionszyklus (200) gepoolt sind.
  9. System nach einem der vorhergehenden Ansprüche, wobei der ORC-Zyklus (200) eine erste Wärmequelle (400) umfasst, die den ersten Verdampfer (104) speist, und wobei der Absorptionszyklus (200) eine zweite Wärmequelle (405) umfasst, die den Generator (203) speist, wobei die erste Wärmequelle (400) und die zweite Wärmequelle (405) thermisch verbunden sind.
  10. System nach dem vorhergehenden Anspruch, das einen zweiten Zwischenwärmetauscher (404) umfasst, der so konfiguriert ist, dass er die erste Wärmequelle (400) und die zweite Wärmequelle (405) thermisch verbindet.
  11. Verfahren zur Energieerzeugung durch ein System nach einem der vorhergehenden Ansprüche, Folgendes umfassend:
    - Erzeugung von elektrischer Energie durch den Expander (105) des ORC-Zyklus (100),
    - eine Wärmeabfuhr durch den Absorber (202) und den zweiten Kondensator (204) des Absorptionszyklus (100),
    dadurch gekennzeichnet, dass die Abwärme aus dem Absorber (202) und dem zweiten Kondensator (204) des Absorptionszyklus (200) über den Zwischenkreis (300) an die Vorwärmvorrichtung des ORC-Zyklus (100) übertragen wird.
  12. Verfahren nach dem vorhergehenden Anspruch, umfassend die Wärmeübertragung der Kälteerzeugung von dem zweiten Verdampfer (205) des Absorptionszyklus (200) auf den ersten Kondensator (106) des ORC-Zyklus (100).
EP23201246.8A 2022-10-04 2023-10-02 System zur energieerzeugung mit einem organischen rankine-zyklus und integriertem absorptionszyklus Active EP4350129B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2210128A FR3140399B1 (fr) 2022-10-04 2022-10-04 Système de production d’énergie par cycle de Rankine organique et cycle à absorption intégrés

Publications (3)

Publication Number Publication Date
EP4350129A1 EP4350129A1 (de) 2024-04-10
EP4350129B1 true EP4350129B1 (de) 2025-07-02
EP4350129C0 EP4350129C0 (de) 2025-07-02

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FR (1) FR3140399B1 (de)

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CN118925255A (zh) * 2024-07-24 2024-11-12 青岛科技大学 一种具有余热利用功能的甲醇精馏装置

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* Cited by examiner, † Cited by third party
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US20120102996A1 (en) * 2010-10-29 2012-05-03 General Electric Company Rankine cycle integrated with absorption chiller
US8904791B2 (en) * 2010-11-19 2014-12-09 General Electric Company Rankine cycle integrated with organic rankine cycle and absorption chiller cycle
CN104236161B (zh) * 2013-06-17 2019-04-02 苏州新华软智能装备有限公司 一种余热回收利用系统
US20160108763A1 (en) * 2014-10-15 2016-04-21 Umm Al-Qura University Rankine cycle power generation system with sc-co2 working fluid and integrated absorption refrigeratino chiller
ES2738663B2 (es) * 2018-07-23 2023-04-13 Mohedano Javier Carlos Velloso Una instalación para generación de energía mecánica mediante un Ciclo Combinado de potencia

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EP4350129C0 (de) 2025-07-02
FR3140399B1 (fr) 2024-09-06
FR3140399A1 (fr) 2024-04-05
EP4350129A1 (de) 2024-04-10

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