EP1828588A2 - Machine thermodynamique a fluide frigorigene a circulation continue - Google Patents
Machine thermodynamique a fluide frigorigene a circulation continueInfo
- Publication number
- EP1828588A2 EP1828588A2 EP05826013A EP05826013A EP1828588A2 EP 1828588 A2 EP1828588 A2 EP 1828588A2 EP 05826013 A EP05826013 A EP 05826013A EP 05826013 A EP05826013 A EP 05826013A EP 1828588 A2 EP1828588 A2 EP 1828588A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- circuit
- output
- thermodynamic machine
- outlet
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- 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
Definitions
- the present invention relates to a thermodynamic machine implementing a refrigerant and operating according to the principle of Carnot
- the object of the invention is a thermodynamic machine operating as a motor or pump for converting a heat energy into a mechanical energy.
- thermodynamic machines having a heat exchanger with a portion of a refrigerant circulation circuit.
- the machine also comprises two variable volume speakers operating in opposition and connected to the hot outlet of the exchanger.
- the speaker outputs are connected, via a chiller and a pump, to the cold input of the heat exchanger.
- a disadvantage of such a machine lies in the need to implement a pump for the circulation of the refrigerant, which reduces the efficiency of such a thermodynamic machine.
- the object of the invention is to provide a thermodynamic machine designed to operate autonomously from a hot source raising the temperature of a refrigerant.
- Another object of the invention is to propose a thermodynamic machine having a higher yield than known thermodynamic machines.
- thermodynamic machine comprises:
- the machine comprises at least one variable volume chamber controlled by the output system being interposed between the cold input of the circuit and the outlet of the cooler, such a chamber ensuring, for a cycle of operation of the enclosure, the reinjection of the liquid into the exchanger to maintain the pressure at the hot outlet of the circuit at a substantially constant value.
- thermodynamic machine comprises a second variable-volume chamber whose input is connected to the hot output of the circuit and the output of which is connected to the input of the cooler, this second enclosure acting on a movable member mounted in opposition to the movable member of the first enclosure, to communicate its movement to the output system.
- variable-volume chamber has a variable volume that is smaller than the volume of the first and / or second chamber in a ratio depending on the characteristics of the fluid used making it possible to equal the mass of the displaced gas. and the mass of displaced liquid.
- variable volume chamber is controlled by a piston actuated by the outlet system and having a section adapted to reinject the liquid into the heat exchanger.
- thermodynamic machine comprises controlled shutters associated with the input-output of the speakers and the chamber.
- the shutters are controlled by means controlled by the movement of the output system.
- the output system comprises an output shaft equipped with a crankshaft on which are connected the movable members of the speakers, the output shaft being provided with cams for controlling the shutters.
- the output shaft acts on the piston of the variable volume chamber through a gear multiplier system.
- the cold inlet and the hot outlet of the circulation circuit are equipped with controlled shutters whose operation is synchronized with the operation of the controlled shutters associated with the speakers and the chamber.
- Fig. 1 is a basic view of an exemplary embodiment of a thermodynamic machine according to the invention.
- Fig. 2 is a schematic view of an output system of a thermodynamic machine illustrated in FIG. 1.
- thermodynamic machine 1 illustrates an exemplary embodiment of a thermodynamic machine 1 according to the invention comprising a closed circulation circuit 2 for a refrigerant such as for example the refrigerant gas R 407.
- the thermodynamic machine 1 comprises a hot source such as a heat exchanger 3 with a part 2i of the circulation circuit of the refrigerant 2.
- the heat exchanger 3 makes it possible to raise the temperature of the refrigerant to a temperature of, for example, between 60 and 100 ° C., adapted to increase the pressure of the refrigerant by up to 40 to 50 bars when it is confined in a closed chamber.
- the heat exchanger 3 is of the solar type, with industrial cooling water, flue gas, etc.
- the circulation circuit 2 comprises at the inlet of the exchanger 3, a cold inlet 2f and at the outlet of the exchanger, a hot outlet 2c.
- the entrance cold 2f and the hot outlet 2c are respectively equipped with controlled shutters 4f, 4c.
- the thermodynamic machine 1 also comprises at least a first and in the example a first 5i and a second 5 2 variable volume speakers.
- Each variable volume chamber 5i, 5 2 has a closed volume by at least one deformable wall for varying the pressure and the volume inside the closed chamber.
- Such a variable volume enclosure 5i, 52 or capsulism can be made in any appropriate manner such membrane, turbine or piston.
- each enclosure 5i, 5 2 is constituted by a cylinder 6i, 6 2 closed by a respective piston 7 ⁇ and 7 2 .
- Each enclosure 5i, 5 2 is intended to be supplied with refrigerant by an inlet respectively 81, 82 connected to the hot outlet 2c via a portion 2 and 2 respectively Iz of the circuit 2.
- each piston 7i, 7 2 communicates its movement to an output system 10 of any type whose movement energy can be used directly or transformed for various applications.
- the output system 10 comprises a rotating output shaft 11 equipped with a crankshaft 12 on which are fixed the rods of the pistons 7i, 72.
- the rods of the pistons 7 1r 7 2 are mounted along the same axis so to operate in opposition, that is to say that when one speaker has a minimum volume, the other speaker has a maximum volume.
- Each enclosure 5i, 5 2 respectively has an outlet 12i, 12 2 for the refrigerant, connected by a portion 2 4 , 2s to the inlet 14 of a cooler 15.
- the circulation circuit 2 thus comprises a portion 2 7 s extending in connection with the cooler 15.
- the cooler 15 makes it possible to return the refrigerant from the gaseous state to the liquid state so that it settles inside the cooler 15, a liquid zone surmounted by a gaseous sky.
- the cooler 15 has an outlet 16 located at the level of the liquid zone and connected to the cold input 2f of the heat exchanger 3 via a part 2s of the circuit 2.
- the inputs and outputs of the speakers 5i and 5 2 are equipped with shutters respectively controlled Ei, E 2 , S 1 , S 2 of any type known per se such as valves or distributors.
- These controlled shutters E 1 , E 2 , S 1 , S 2 are advantageously controlled by means 17 controlled by the movement of the output system 10.
- the output shaft 11 is provided with cams making it possible to act directly or indirectly on the shutters according to a cycle of operation which will be described more precisely in the following description.
- these means 17 controlled by the output system 10 can also drive the controlled shutters 4f, 4c.
- these controlled shutters 4f, 4c can also be controlled by the refrigerant pressure.
- the cooler 15 which constitutes the cold source of the thermodynamic machine 1 is of any type known per se for lowering the temperature of the refrigerant and consequently lowering its pressure. It should be noted that the expansion of the refrigerant inevitably involves an absorption of calories producing cold which advantageously can be recovered by the cooler.
- the thermodynamic machine 1 also comprises at least one variable volume chamber 21 controlled by the outlet system 10, being interposed between the cold inlet 2f of the circuit and the outlet 16 of the cooler 15.
- the chamber variable volume 21 is constituted by a piston 21i and a cylinder 2I 2 which is provided, on the one hand, with an inlet 22 connected by a portion 2g of the circuit 2 to the outlet 16 of the cooler and, on the other hand, an output 23 connected to the cold input 2f of the circuit by the part 2s of the circuit.
- the inlet 22 and the outlet 23 of the chamber 21 are equipped with shutters respectively E 3 , S 3 also controlled by the outlet system 10, such as by cams 17.
- variable volume chamber 21 has a variable volume less than the volume of the first and / or second chamber in a ratio established according to the characteristics of the fluid used and allowing to have a balance between the mass of the gas moved, that is, entering the cooler 15 and the mass of liquid moved on the piston.
- the piston 21i associated with this chamber, has a section as small as possible, so that the force required to inject the liquid in the portion 28 of the circuit is as low as possible, in order to conserve the maximum energy on the output shaft 11.
- the piston 21i is controlled by the output system 10, so as to ensure, for an operating cycle of an enclosure 5i, 5 2 , the reinjection of the refrigerant into the heat exchanger 3 to maintain the pressure at the hot outlet 2c of the circuit at a substantially constant value.
- the piston 21i thus makes it possible to reinject, in small quantities, the refrigerant into the heat exchanger 3.
- the piston 21i is connected to the output shaft 11 by means of a speed multiplier system 30.
- the piston of the chamber 21 makes a return trip while a piston of a chamber S 1 , 5z performs a race in a given direction.
- the operation of the thermodynamic machine derives directly from the foregoing description.
- the refrigerant placed in the part 2 ⁇ of the circuit sees its temperature increased, its pressure increased and eventually changes state. It should be noted that the shutters E 1 , S 2 , E 3 , S 3 are considered open while the shutters E 1 , E 2 and Si are closed.
- the refrigerant When the refrigerant reaches a determined pressure value, for example between 30 and 50 bar, the refrigerant enters the first chamber 5i to ensure the thrust of the piston 7i and the movement of the output shaft 11 of the system Release. At the same time, piston 7 2 flushes the fluid contained in the chamber 5 2 towards the cooler 15.
- a determined pressure value for example between 30 and 50 bar
- variable volume chamber 21 has made, during the forward stroke of the piston 7i, a round trip that has returned a portion of the fluid in the exchanger 3.
- the variable volume chamber 21 thus allows ensuring the reduction of the pressure of the refrigerant in the hot part of the circuit for injecting the refrigerant at a temperature lowered in the heat exchanger 3. It follows that the refrigerant having filled the heat exchanger 3 sees its temperature and its pressure increased. Insofar as the pressure at the hot outlet 2 is lower than the pressure of the refrigerant in the exchanger 3, refrigerant can be injected into the hot outlet 2 from the exchanger 3.
- variable volume chamber 21 injects the refrigerant into the exchanger 3, so that the pressure at the hot outlet 2 returns to its nominal value, that is to say, is kept at a substantially constant value.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Confectionery (AREA)
- Fluid-Pressure Circuits (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0413206A FR2879234B1 (fr) | 2004-12-13 | 2004-12-13 | Machine thermodynamique a fluide frigorigene a circulation continue |
| PCT/FR2005/003111 WO2006064118A2 (fr) | 2004-12-13 | 2005-12-13 | Machine thermodynamique a fluide frigorigene a circulation continue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1828588A2 true EP1828588A2 (fr) | 2007-09-05 |
| EP1828588B1 EP1828588B1 (fr) | 2013-02-13 |
Family
ID=35385682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05826013A Expired - Lifetime EP1828588B1 (fr) | 2004-12-13 | 2005-12-13 | Machine thermodynamique a fluide frigorigene a circulation continue |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090282826A1 (fr) |
| EP (1) | EP1828588B1 (fr) |
| CN (1) | CN101094973A (fr) |
| FR (1) | FR2879234B1 (fr) |
| RU (1) | RU2007121774A (fr) |
| WO (1) | WO2006064118A2 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2493155A1 (fr) * | 2002-07-22 | 2004-01-29 | Daniel H. Stinger | Production d'energie par cycle en boucle fermee en cascade |
| FR3120922A1 (fr) * | 2021-03-17 | 2022-09-23 | Pierre-Yves Berthelemy | Machine thermique |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4109468A (en) * | 1973-04-18 | 1978-08-29 | Heath Willie L | Heat engine |
| US4653269A (en) * | 1975-03-14 | 1987-03-31 | Johnson David E | Heat engine |
| US4018050A (en) * | 1976-07-16 | 1977-04-19 | Coy F. Glenn | Compressed air-operated motor employing dual lobe cams |
| US4628692A (en) * | 1980-09-04 | 1986-12-16 | Pierce John E | Solar energy power system |
| CH650313A5 (fr) * | 1981-11-19 | 1985-07-15 | Sorelec | Moteur a conversion thermomecanique, notamment moteur a fluide a basse temperature d'ebullition. |
| CA2462864A1 (fr) * | 2001-10-09 | 2003-04-17 | Pat Romanelli | Moteurs a vapeur utilisant un circuit de fluorocarbure a boucle fermee pour produire de l'energie |
| DE202004005200U1 (de) * | 2004-04-01 | 2004-09-02 | Heiderich, Armin | Vorrichtung zur Niedertemperaturenergie-Ausnutzung |
-
2004
- 2004-12-13 FR FR0413206A patent/FR2879234B1/fr not_active Expired - Fee Related
-
2005
- 2005-12-13 CN CNA2005800427504A patent/CN101094973A/zh active Pending
- 2005-12-13 WO PCT/FR2005/003111 patent/WO2006064118A2/fr not_active Ceased
- 2005-12-13 EP EP05826013A patent/EP1828588B1/fr not_active Expired - Lifetime
- 2005-12-13 RU RU2007121774/06A patent/RU2007121774A/ru not_active Application Discontinuation
- 2005-12-13 US US11/720,940 patent/US20090282826A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006064118A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2879234A1 (fr) | 2006-06-16 |
| EP1828588B1 (fr) | 2013-02-13 |
| RU2007121774A (ru) | 2009-01-20 |
| WO2006064118A3 (fr) | 2006-12-07 |
| US20090282826A1 (en) | 2009-11-19 |
| WO2006064118A2 (fr) | 2006-06-22 |
| CN101094973A (zh) | 2007-12-26 |
| FR2879234B1 (fr) | 2010-06-18 |
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