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EP4592508A3 - Thermoelectric plant with super-criticality phase fluid - Google Patents

Thermoelectric plant with super-criticality phase fluid

Info

Publication number
EP4592508A3
EP4592508A3 EP25153570.4A EP25153570A EP4592508A3 EP 4592508 A3 EP4592508 A3 EP 4592508A3 EP 25153570 A EP25153570 A EP 25153570A EP 4592508 A3 EP4592508 A3 EP 4592508A3
Authority
EP
European Patent Office
Prior art keywords
fluid
gears
heat engine
teeth
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP25153570.4A
Other languages
German (de)
French (fr)
Other versions
EP4592508A2 (en
Inventor
Manlio Molinari
Klaus Jürgen Herrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4592508A2 publication Critical patent/EP4592508A2/en
Publication of EP4592508A3 publication Critical patent/EP4592508A3/en
Pending legal-status Critical Current

Links

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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/36—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of positive-displacement type
    • 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
    • F01K25/06—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 mixtures of different fluids
    • F01K25/065—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 mixtures of different fluids with an absorption fluid remaining at least partly in the liquid state, e.g. water for ammonia
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F01C1/18—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • F01K25/103—Carbon dioxide
    • 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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B3/00—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass
    • F22B3/08—Other methods of steam generation; Steam boilers not provided for in other groups of this subclass at critical or supercritical pressure values

Landscapes

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

Abstract

System (1) for producing work, heating and/or cooling, comprising a heat engine (2) for producing mechanical work, having a plurality of gears (18a, 18b; 23a, 23b; 26a, 26b; 29a, 29b; 30a, 30b, 30c) provided with teeth (D), defining working chambers (20) for expanding a fluid, and arranged to mesh with each other, a generator or alternator (15), connected to the gears (18a, 18b; 23a, 23b; 26a, 26b; 29a, 29b; 30a, 30b, 30c) of the heat engine (2) by means of at least one mechanical shaft, for converting into electric current the mechanical work of rotation of the gears (18a, 18b; 23a, 23b; 26a, 26b; 29a, 29b; 30a, 30b, 30c) induced by the direct thrust of the fluid on the teeth (D), a heat exchanger (3, 4), connected via a conduit to the heat engine (2), to cool and/or heat the fluid, a pump (5) having a plurality of compression stages for compressing the fluid and connected via a conduit to the heat exchanger (3, 4) and via a further conduit to the heat engine (2), a motor (14) to drive the pump (5); the system (1) being characterized in that the teeth (D) of the gears (18a, 18b; 23a, 23b; 26a, 26b; 29a, 29b; 30a, 30b, 30c) of the heat engine (2) are provided with dynamic gas seals (21) between the working chambers (20) to keep the fluid, which is in supercritical conditions, confined in a single working chamber (20) while it expands between the teeth (D) that form said working chamber (20); and the stages of the pump (5) are provided with dynamic gas seals (5b) between one stage and the other to keep the fluid, which is in supercritical conditions, confined to a single stage while it is compressed.
EP25153570.4A 2024-01-23 2025-01-23 Thermoelectric plant with super-criticality phase fluid Pending EP4592508A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202400001203 2024-01-23

Publications (2)

Publication Number Publication Date
EP4592508A2 EP4592508A2 (en) 2025-07-30
EP4592508A3 true EP4592508A3 (en) 2025-11-05

Family

ID=90468669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP25153570.4A Pending EP4592508A3 (en) 2024-01-23 2025-01-23 Thermoelectric plant with super-criticality phase fluid

Country Status (1)

Country Link
EP (1) EP4592508A3 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030172654A1 (en) * 2002-03-14 2003-09-18 Paul Lawheed Rankine cycle generation of electricity
US20040261759A1 (en) * 2003-06-27 2004-12-30 Greppi Lelio Dante Internal combustion engine of open-closet cycle and binary fluid
US20090188253A1 (en) * 2005-06-10 2009-07-30 City University Expander Lubrication in Vapour Power Systems
US20100154420A1 (en) * 2005-08-31 2010-06-24 Yasushi Yamamoto Rotary displacement steam engine
US8783035B2 (en) * 2011-11-15 2014-07-22 Shell Oil Company System and process for generation of electrical power
WO2015019886A1 (en) * 2013-08-07 2015-02-12 日立造船株式会社 Waste heat recovery device
US20170350251A1 (en) * 2014-12-30 2017-12-07 Eaton Corporation Optimal expander outlet porting
EP2604814B1 (en) * 2011-12-14 2018-08-29 Nuovo Pignone S.p.A. Closed cycle system for recovering waste heat
EP3460179A1 (en) * 2017-09-21 2019-03-27 GasNet s.r.o. Screw expander and method for creating mechanical energy by expanding a working fluid
US20200011210A1 (en) * 2017-03-01 2020-01-09 Epicam Limited A liquid air engine and a method of operating a liquid air engine, and a method of operating an engine and a method and system for liquefying air
DE102021000399A1 (en) * 2020-03-10 2021-10-28 Oleg Tchebunin Rotary piston expander as a power machine instead of a steam or gas turbine, nuclear power plant and vehicle with the same
WO2022225485A2 (en) * 2021-04-21 2022-10-27 Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi A screwed generator which uses heat transfer method for generating energy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017002286A1 (en) 2017-03-09 2018-09-13 Klaus Jürgen Herrmann Hydrid heat engine with two devices for converting heat into mechanical energy Enabled by an isochoric working machine, a hybrid thermal cycle process and an isothermal heat engine.

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030172654A1 (en) * 2002-03-14 2003-09-18 Paul Lawheed Rankine cycle generation of electricity
US20040261759A1 (en) * 2003-06-27 2004-12-30 Greppi Lelio Dante Internal combustion engine of open-closet cycle and binary fluid
US20090188253A1 (en) * 2005-06-10 2009-07-30 City University Expander Lubrication in Vapour Power Systems
US20100154420A1 (en) * 2005-08-31 2010-06-24 Yasushi Yamamoto Rotary displacement steam engine
US8783035B2 (en) * 2011-11-15 2014-07-22 Shell Oil Company System and process for generation of electrical power
EP2604814B1 (en) * 2011-12-14 2018-08-29 Nuovo Pignone S.p.A. Closed cycle system for recovering waste heat
WO2015019886A1 (en) * 2013-08-07 2015-02-12 日立造船株式会社 Waste heat recovery device
US20170350251A1 (en) * 2014-12-30 2017-12-07 Eaton Corporation Optimal expander outlet porting
US20200011210A1 (en) * 2017-03-01 2020-01-09 Epicam Limited A liquid air engine and a method of operating a liquid air engine, and a method of operating an engine and a method and system for liquefying air
EP3460179A1 (en) * 2017-09-21 2019-03-27 GasNet s.r.o. Screw expander and method for creating mechanical energy by expanding a working fluid
DE102021000399A1 (en) * 2020-03-10 2021-10-28 Oleg Tchebunin Rotary piston expander as a power machine instead of a steam or gas turbine, nuclear power plant and vehicle with the same
WO2022225485A2 (en) * 2021-04-21 2022-10-27 Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi A screwed generator which uses heat transfer method for generating energy

Also Published As

Publication number Publication date
EP4592508A2 (en) 2025-07-30

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