EP1367561A1 - Générateur d'ondes thermo-acoustiques - Google Patents
Générateur d'ondes thermo-acoustiques Download PDFInfo
- Publication number
- EP1367561A1 EP1367561A1 EP03101535A EP03101535A EP1367561A1 EP 1367561 A1 EP1367561 A1 EP 1367561A1 EP 03101535 A EP03101535 A EP 03101535A EP 03101535 A EP03101535 A EP 03101535A EP 1367561 A1 EP1367561 A1 EP 1367561A1
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- EP
- European Patent Office
- Prior art keywords
- thermo
- wave generator
- acoustic wave
- generator according
- acoustic
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/04—Sound-producing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
- F02G2243/30—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders
- F02G2243/50—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders having resonance tubes
- F02G2243/54—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having their pistons and displacers each in separate cylinders having resonance tubes thermo-acoustic
Definitions
- the invention relates to a wave generator. thermo-acoustic as well as an energy converter comprising a thermo-acoustic wave generator.
- thermo-acoustic wave generator produces acoustic energy from energy thermal.
- the invention finds application in all area where conversion of thermal energy into acoustic energy and / or electrical energy can be considered as, for example, the space domain or the automotive field.
- the invention relates to a converter thermo-acoustic magneto hydrodynamics which produces electrical energy from thermal energy previously converted into acoustic energy.
- a thermo-acoustic magneto hydrodynamic converter according to the invention thus produces a power high electric power, for example around 200kW at from a thermal power between 800 and 1000kW.
- thermo-acoustic wave generator according to the invention is of the plate stack type.
- a principle diagram of thermo-acoustic wave generator art stacking figure is shown in Figure 1.
- the generator includes a stack of plates 1 kept at a distance from each other and placed in a duct 2. Air 3 fills the interior space of the sheath 2 and, consequently, the space between the plates. A heat flow is established between the ends E1 and E2 of the stack of plates. To this end, the end E1 is brought to a high temperature T1 and the end E2 at a low temperature T2. The gradient of temperature existing between the ends E1 and E2 then leads to the appearance of micro-cycles thermodynamics in the air that fills the plates. A part of the heat flow turns into waves acoustic. P acoustic wave planes appear in the air located on the end side which is brought to the low temperature.
- thermo-acoustic wave generator A problem that arises during design of a thermo-acoustic wave generator is that of the circulation of the heat flow in the plates. he it is therefore necessary to design, on the one hand, means capable of penetrating the heat flow into these and, on the other hand, means capable of evacuating this flow. This problem arises particularly sensitive in the event that it is intended to produce high power acoustic waves.
- thermo-acoustic wave generator solves in a simple and effective way the problem mentioned above and finds an application particularly advantageous for the generation of waves high power acoustics.
- an ear comprises a plurality of uniformly distributed holes on the surface of the ear.
- the overall opening presented by the or ear holes is substantially equal to 60% of the total area of the ear.
- the ears and wedges of a stack forming exchanger are brazed or glued.
- thermodynamic fluid is sodium liquid or saline solution.
- the generator comprises a capacity under pressure in which the thermodynamic liquid is kept under pressure.
- the ear holes and the openings shims of the same heat exchanger constitute at less a conduit for the circulation of a fluid coolant.
- the means able to establish a heat flow include pipes to supply heat transfer fluid to heat exchangers.
- the lines include lines for supplying a first heat transfer fluid the two exchangers which constitute a hot spot for the heat flow and pipes to supply a second fluid the two heat exchangers which constitute a cold spot for heat flow, pipes for the supply of the first heat transfer fluid being maintained in a fixed position relative to the two exchangers which constitute the hot spot while the lines for supplying the second fluid are free to move under the effect of thermal expansions that appear between point hot and cold spot.
- the lines for supplying the second fluid coolant cross at a flange of maintenance in order to transform displacements longitudinal in torsional displacements.
- the first and second heat transfer fluids are sodium liquid or a NaK eutectic (Sodium / Potassium).
- the invention also relates to a converter thermo-acoustic magneto hydrodynamics, characterized in that it includes a thermo-acoustic wave generator according to the invention to form waves acoustics from thermal energy and a magneto hydrodynamic device for delivering electrical energy from acoustic waves.
- the invention also relates to a reactor spatial, characterized in that it comprises a thermo-acoustic magneto hydrodynamic converter according to the invention.
- the invention also relates to a generator electric motor vehicle, characterized in that it includes a magneto hydrodynamic converter thermo-acoustic including a wave generator thermo-acoustic according to the invention to form acoustic waves from thermal energy and a magneto hydrodynamic device for delivering electrical energy from acoustic waves, what the first heat transfer fluid is a mixture air and hydrogen and in that the second fluid coolant consists of ambient air.
- a magneto hydrodynamic converter thermo-acoustic including a wave generator thermo-acoustic according to the invention to form acoustic waves from thermal energy and a magneto hydrodynamic device for delivering electrical energy from acoustic waves, what the first heat transfer fluid is a mixture air and hydrogen and in that the second fluid coolant consists of ambient air.
- the ear holes and the openings shims of the same heat exchanger form a set of cavities, capsules containing a radioisotope being placed inside the cavities formed in the heat exchangers located on either side else from the first end of the set of plates.
- heat pipes connected to at least one radiator are placed at inside the cavities formed in the exchangers thermals located on either side of the second end of the plate assembly.
- the cavities formed in the heat exchangers located on either side of the second end are connected to pipes able to circulate a heat transfer fluid in the cavities.
- the heat transfer fluid is liquid sodium, or a eutectic NaK (sodium / potassium), or a gas, or liquid cesium, or mercury.
- the radioisotope is powdered tritium hydride or of Pu 235.
- the invention also relates to a converter of energy including a thermo-acoustic wave generator and energy conversion means acoustic in electrical energy, characterized in that the thermo-acoustic wave generator is a generator according to the invention and the means of conversion of acoustic energy into electrical energy include at least one piezoelectric sensor.
- the invention also relates to a reactor spatial, characterized in that it comprises a energy converter according to the invention.
- the invention also relates to a generator electric motor vehicle, characterized in that it includes an energy converter according to the invention
- FIG. 2 represents a stack E of acoustic wave generator plates according to first embodiment of the invention and the figure 3 shows a partial exploded view of the stack E shown in Figure 2.
- Each plate 4 includes a central body rectangular 5 and four extensions or ears 6 provided with holes 7. The ears 6 are placed at the ends of the plate, on both sides of the body central 5. Each plate 4 of the stack is separate of the next plate by four shims 8. Each shim 8 has an opening 9. The shims 8 are inserted between the plates at ear level 6.
- a stack formed by a succession of ears 6 and of shims 8 constitutes a heat exchanger capable of circulation of a heat transfer fluid.
- the stack of plates may include several hundred plates, for example 400, of thickness e substantially between 0.2 and 0.3 mm.
- the shims 8 preferably have substantially the same thickness as the plates 4.
- the rectangular central body 5 of a plate has a length L of 500mm and a width 1 of 200mm.
- the ears 6 preferably have a 150mm square shape. Through holes 7 formed in each ear 6 are preferably evenly distributed over the surface of the ear. The overall opening presented by the holes 7 is, by example, around 60% of the total area of the ear. The diameter of a hole can be, for example, equal to 10mm.
- the sizing of plates is a function of the power generated and the nature and pressure of the thermodynamic fluid.
- the diameter of the ear holes is a depending on the nature and flow of the fluid coolant.
- the plates 4 and the wedges 8 are produced in a thermally conductive material such as, for example example, Inconel or Incoloy (iron nickel alloy or nickel chrome). Wedges 8 are brazed or glued to plates 4. Preferably, all of the plates and shims is brazed at once, according to the technique of the plate exchangers.
- the flow of heat that runs through a stack plate is represented by arrows F in Figure 3.
- the device according to the invention advantageously provides a very good thermal conduction.
- a plate is I-shaped and the ears and wedges are of square section or rectangular.
- Other shapes of ears and wedges are also possible such as, for example, ears and wedges in a semicircle or half-hexagon, etc.
- Figure 4 shows a structure with stack of plates for wave generator acoustic according to the first embodiment of the invention
- a system of pipes 10, 11, 12, 13 ensures circulation of heat transfer fluids. Both heat exchangers which are located on either side on the other end of the same plate assembly are mounted in parallel. Lines 10 and 11 allow, respectively, the introduction and the evacuation of a first heat transfer fluid C1 in the two exchangers which are on either side of the first end (hot spring) while the lines 12 and 13 allow, respectively, the introduction and evacuation of a second fluid C2 coolant in the two exchangers which are on either side of the second end (source cold).
- thermodynamic fluid is present in space which separates the plates.
- micro-cycles thermodynamics appear in the fluid thermodynamics and the acoustic wave generator vibrates at high frequency. It is important to keep account for temperature differences and vibrations of the acoustic wave generator for establish the configuration of lines 10, 11, 12, 13 and therefore the mechanical stresses applied to these behaviors.
- the "hot" part of the plate structure i.e. the part of the plate structure brought to the highest temperature high
- the “cold” part that is to say the part of the plate structure brought to the lowest temperature, can move freely depending on the expansions.
- the heat transfer fluid lines 12 and 13 which feed the “cold” part intersect at the level a retaining flange (not shown in the figure) so as to transform the longitudinal displacements in torsional displacements.
- FIG. 5 shows a sectional view of a partial element of the structure shown in figure 4. More precisely, FIG. 5 represents the junction between a heat transfer fluid supply line and stacking plates. The collector presents a flaring 14 to ensure optimal flow of heat transfer fluids C1, C2.
- FIG. 6 shows a sectional view of a block diagram of magneto converter thermo-acoustic hydrodynamics according to the first mode for carrying out the invention.
- Converter includes an acoustic wave generator according to invention 15 and a magneto hydrodynamic device 16.
- the acoustic wave generator 15 comprises a structure as shown in Figure 2 (stacking of plates and pipes) mounted in a sheath 18 filled with thermodynamic fluid 17.
- the lines 10 and 11 allow, respectively, the introduction and the evacuation of the heat transfer fluid C1, while the lines 12 and 13 allow, respectively, the introduction and evacuation of the heat transfer fluid C2.
- the thermodynamic fluid 17 is pressurized, by example at a value substantially equal to 70 bars.
- the thermodynamic fluid can be liquid metal such that for example liquid sodium or even a saline solution such as, for example, a solution of NaK (sodium / potassium).
- a first heat transfer fluid C1 for example liquid sodium or a NaK eutectic (sodium / potassium), brought to high temperature, by example 750 ° C, is used to heat the first end of the stack of plates (hot spring).
- a second heat transfer fluid C2 for example also sodium or NaK eutectic (sodium / potassium), brought to low temperature, by example 450 ° C, is used to remove heat at level of the second end of the stack of plates (cold source).
- the acoustic waves generated are emitted under form of P wave planes towards the device hydrodynamic magneto 16.
- the magneto device hydrodynamics 16 can then deliver, for example, a 200kW electrical power from a power thermal range, for example, between 800 and 1000kW.
- the hydrodynamic magneto converter according to the invention transforms a large amount of thermal energy into electrical energy by through low mechanical vibrations amplitude, that is to say without practically moving mechanical parts.
- Figure 7 shows a perspective view a thermo-acoustic magneto hydrodynamic converter according to the first embodiment of the invention, equipped with a pressurized capacity.
- the pressurized capacity 19 is an envelope in the shape of a bulb which contains all the elements shown in Figure 6, namely, a device hydrodynamic magneto 16 and a sheath 18 containing a stack of plates and shims with pipes and a thermodynamic fluid 17.
- Capacity under pressure 19 has the function of maintaining the liquid thermodynamics under pressure, for example a pressure of 70 bars.
- a structure such as shown in Figure 7 has a low footprint.
- the pressurized capacity 19 can have a height A typically between 0.5 and 1 m, a depth B typically between 0.1 and 0.5 m and a width C typically between 0.1 and 0.5 m.
- Such dimensions associated with electrical performance mentioned above, allow magneto converter applications hydrodynamics according to the invention particularly advantageous in space and in the field of the automobile.
- a converter hydrodynamic magneto In space, a converter hydrodynamic magneto according to the invention can be integrated into a space reactor.
- the hot spring can then be a very high nuclear reactor temperature and the cold source a radiant radiator towards space vacuum.
- Heat transfer fluids can be, for example, Helium, NaK, Cesium, Mercury.
- the source hot can be made from a mixture of air and hydrogen brought to high temperature and the source cold from ambient air.
- Electrical energy from the magneto hydrodynamic converter according to the invention is then distributed over four engines electric motors, each electric motor elementary actuating a wheel of the motor vehicle.
- FIG. 8 represents a stack E of acoustic wave generator plates according to second embodiment of the invention and the Figure 9 shows a partial exploded view of the stack shown in FIG. 8.
- Each plate 4 includes a central body rectangular 5 and four extensions or ears 6 provided with openings 7.
- the ears 6 are placed at the ends of the plate, on both sides of the body central 5.
- Wedges 8 separate two plates of the stack. Wedges 8 are inserted between the plates at ear level 6.
- each wedge 8 is provided with openings 9 whose dimensions are substantially identical to the dimensions of the openings ears. The openings 7 of the ears and the openings 9 of the wedges overlap so as to create a set of cavities 20 (cf. FIG. 8).
- stacking of plates can include several hundred plates, per example 400, of thickness e substantially between 0.2 and 0.3mm.
- the shims 8 preferably have substantially the same thickness as the plates 4.
- the central body rectangular 5 of a plate has a length L of 500mm and a width 1 of 200mm.
- Ears 6 have, preferably, a square shape of 150mm side.
- the openings 7 formed in each ear 6 are preferably uniformly distributed over the surface of the ear and represent, for example, order 60% of the total area of the ear. More general, sizing of plates and surface openings are functions of power generated.
- the plates 4 and the wedges 8 are produced in a thermally conductive material such as, for example example, Inconel or Incoloy (iron nickel alloy or nickel chrome). Wedges 8 are brazed or glued to plates 4. Preferably, all of the plates and shims is brazed at once, according to the technique of known embodiment of the plate exchangers.
- the heat flow which runs through a stack plate is represented by arrows F in Figure 3.
- the device according to the invention advantageously provides a very good thermal conduction.
- a plate is I-shaped and the ears and wedges are of square section or rectangular. Other shapes of ears and wedges are also possible such as, for example, ears and wedges in a semicircle or half-hexagon, etc.
- each wedge and each ear has six openings. The invention, however, relates to many other types configurations. So every hold and every ear can they have, for example, only one opening.
- Figure 10 shows a structure for energy converter according to the second mode of realization of the invention.
- the converter comprises a stack E of plates and shims as described above, elements 21 which constitute a hot spring, elements 22, 23 which constitute a cold source and piezoelectric sensors 24, 25.
- Elements 21 which constitute the source are capsules containing a radioisotope producer of thermal energy such as, for example, powdered tritium hydride or Pu 235. Powdered tritium hydride has the advantage be light and provide excellent safety use.
- the capsules 21 are placed at inside the cavities 20 which are located at a first end of the stack. A contact intimate thermal is ensured between each capsule and inside the cavity that receives the capsule.
- the elements that participate in the cold source consist of heat pipes 22 connected to a radiator 23.
- the heat pipes 22 are placed inside the cavities 20 which are located at the opposite end of the first end of the stack. A contact intimate thermal is ensured between each heat pipe and inside the cavity that receives the heat pipe.
- thermodynamic fluid (not shown in the figure 10) is present in the space between the plates.
- thermodynamic micro-cycles appear in the thermodynamic fluid and the acoustic wave generator vibrates at high frequency. Plane waves are then generated on both sides of the stack E.
- Figure 11 shows a variant of the structure shown in Figure 10.
- the two exchangers located on the side of the cold source are traversed by a heat transfer fluid C3.
- Cavities 20 of the stack E located on the side of the cold source then constitute conduits allowing the circulation of the heat transfer fluid, as is produced according to the first embodiment of the invention.
- Lines 26, 27 provide the transport of the coolant at the exchangers.
- the heat transfer fluid C3 can be, for example, liquid sodium, NaK eutectic (sodium / potassium), gas, liquid cesium or mercury.
- Figure 12 shows a sectional view of a energy converter according to the second mode of realization of the invention.
- the energy converter includes a E stack of plates and two piezoelectric sensors 24, 25 mounted in a sheath 29 filled with thermodynamic fluid 28.
- the radiator 23 of the source cold is placed outside the sheath 29 and at contact of it.
- thermo-acoustic wave generator according to the invention comprises a pressure capsule (not shown in Figure 12) in which the liquid thermodynamics is maintained.
- the acoustic waves generated are emitted under waveforms towards piezoelectric sensors 24, 25.
- the energy converter can then deliver, for example, electrical power 200kW from a thermal power included, for example, between 800 and 1000kW.
- the energy converter according to the second mode of realization of the invention transforms a great amount of thermal energy into electrical energy per through low mechanical vibrations amplitude, that is to say without practically moving mechanical parts.
Abstract
Description
- un ensemble de plaques montées parallèlement les unes aux autres dans une gaine emplie d'un fluide thermodynamique, deux plaques successives de l'empilement étant éloignées l'une de l'autre de sorte que le fluide thermodynamique emplit l'espace entre les plaques, et
- des moyens aptes à établir un flux de chaleur entre une première extrémité de l'ensemble de plaques et une deuxième extrémité de l'ensemble de plaques située à l'opposé de la première extrémité.
- la figure 1 représente un schéma de principe de générateur d'ondes acoustiques à empilement de plaques selon l'art antérieur ;
- la figure 2 représente un empilement de plaques pour générateur d'ondes acoustiques selon un premier mode de réalisation de l'invention ;
- la figure 3 représente une vue partielle éclatée de l'empilement représenté en figure 2 ;
- la figure 4 représente une structure à empilement de plaques pour générateur d'ondes acoustiques selon le premier mode de réalisation de l'invention ;
- la figure 5 représente une vue en coupe d'un élément partiel de la structure représentée en figure 4 ;
- la figure 6 représente une vue en coupe d'un convertisseur magnéto hydrodynamique thermo-acoustique selon le premier mode de réalisation de l'invention ;
- la figure 7 représente une vue en perspective d'un convertisseur magnéto hydrodynamique thermo-acoustique selon le premier mode de réalisation de l'invention équipé d'une capacité sous pression ;
- la figure 8 représente un empilement de plaques pour générateur d'ondes acoustiques selon un deuxième mode de réalisation de l'invention ;
- la figure 9 représente une vue partielle éclatée de l'empilement représenté en figure 8 ;
- la figure 10 représente une structure pour convertisseur d'énergie selon le deuxième mode de réalisation de l'invention ;
- la figure 11 représente une variante de la structure représentée en figure 10 ;
- la figure 12 représente une vue en coupe d'un convertisseur d'énergie selon le deuxième mode de réalisation de l'invention.
Claims (23)
- Générateur d'ondes thermo-acoustiques comprenant :un ensemble de plaques (4) montées parallèlement les unes aux autres dans une gaine (18) emplie d'un fluide thermodynamique (17), deux plaques successives de l'empilement étant éloignées l'une de l'autre de sorte que le fluide thermodynamique emplit l'espace entre les plaques, etdes moyens (6, 7) aptes à établir un flux de chaleur entre une première extrémité de l'ensemble de plaques et une deuxième extrémité de l'ensemble de plaques située à l'opposé de la première extrémité,
- Générateur d'ondes thermo-acoustiques selon la revendication 1, caractérisé en ce qu'une oreille (6) comprend une pluralité de trous (7) uniformément répartis sur la surface de l'oreille.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que l'ouverture globale présentée par le ou les trous d'une oreille (6) est sensiblement égale à 60% de la surface totale de l'oreille.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les oreilles (6) et les cales (4) d'un empilement formant échangeur sont brasées ou collées.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le fluide thermodynamique est du sodium liquide ou une solution saline.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une capacité sous pression dans laquelle le liquide thermodynamique est maintenu sous pression.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications précédentes, caractérisé en ce que les trous (7) des oreilles et les ouvertures (9) des cales (8) d'un même échangeur thermique constituent au moins un conduit pour la circulation d'un fluide caloporteur.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens aptes à établir un flux de chaleur comprennent des conduites (10, 11, 12, 13) pour alimenter en fluide caloporteur les échangeurs thermiques.
- Générateur d'ondes thermo-acoustiques selon la revendication 8, caractérisé en ce que les conduites (10, 11, 12, 13) comprennent des conduites (10, 11) pour alimenter en un premier fluide caloporteur (C1) les deux échangeurs qui constituent un point chaud pour le flux de chaleur et des conduites (12, 13) pour alimenter en un deuxième fluide caloporteur (C2) les deux échangeurs qui constituent un point froid pour le flux de chaleur, les conduites (10, 11) pour l'alimentation du premier fluide caloporteur (C1) étant maintenues en position fixe par rapport aux deux échangeurs qui constituent le point chaud alors que les conduites (12, 13) pour l'alimentation du deuxième fluide caloporteur (C2) sont libres de se déplacer sous l'effet des dilatations thermiques qui apparaissent entre point chaud et point froid.
- Générateur d'ondes thermo-acoustiques selon la revendication 9, caractérisé en ce que les conduites (12, 13) pour l'alimentation du deuxième fluide caloporteur (C2) se croisent au niveau d'une bride de maintien afin de transformer des déplacements longitudinaux en déplacements de torsion.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 9 ou 10, caractérisé en ce que les premier et deuxième fluides caloporteurs sont du sodium liquide ou un eutectique NaK (Sodium/Potassium).
- Convertisseur magnéto hydrodynamique thermo-acoustique, caractérisé en ce qu'il comprend un générateur d'ondes thermo-acoustique selon l'une quelconque des revendications 1 à 11 pour former des ondes acoustiques (P) à partir d'énergie thermique et un dispositif magnéto hydrodynamique (16) pour délivrer de l'énergie électrique à partir des ondes acoustiques (P) .
- Réacteur spatial, caractérisé en ce qu'il comprend un convertisseur magnéto hydrodynamique thermo-acoustique selon la revendication 12.
- Générateur électrique pour véhicule automobile, caractérisé en ce qu'il comprend un convertisseur magnéto hydrodynamique thermo-acoustique comprenant un générateur d'ondes thermo-acoustique selon l'une quelconque des revendications 7 à 10 pour former des ondes acoustiques à partir d'énergie thermique et un dispositif magnéto hydrodynamique pour délivrer de l'énergie électrique à partir des ondes acoustiques, en ce que le premier fluide caloporteur (C1) est un mélange d'air et d'hydrogène et en ce que le deuxième fluide caloporteur (C2) est constitué d'air ambiant.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les trous (7) des oreilles (6) et les ouvertures (9) des cales (8) d'un même échangeur thermique forment un ensemble de cavités (20), des capsules (21) contenant un radio-isotope étant placées à l'intérieur des cavités (20) formées dans les échangeurs thermiques situés de part et d'autre de la première extrémité de l'ensemble de plaques.
- Générateur d'ondes thermo-acoustiques selon la revendication 15, caractérisé en ce que des caloducs (22) reliés à au moins un radiateur (23) sont placés à l'intérieur des cavités (20) formées dans les échangeurs thermiques situés de part et d'autre de la deuxième extrémité de l'ensemble de plaques.
- Générateur d'ondes thermo-acoustiques selon la revendication 15, caractérisé en ce que les cavités (20) formées dans les échangeurs thermiques situés de part et d'autre de la deuxième extrémité sont reliées à des conduites (26, 27) aptes à faire circuler un fluide caloporteur (C3) dans les cavités (20).
- Générateur d'ondes thermo-acoutiques selon la revendication 17, caractérisé en ce que le fluide caloporteur (C3) est du sodium liquide, ou un eutectique NaK (sodium/potassium), ou un gaz, ou du césium liquide, ou du mercure.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 15 à 18, caractérisé en ce que le radio-isotope est de l'hydrure de tritium en poudre ou du Pu 235.
- Convertisseur d'énergie comprenant un générateur d'ondes thermo-acoustiques et des moyens de conversion d'énergie acoustique en énergie électrique, caractérisé en ce que le générateur d'ondes thermo-acoustiques est un générateur selon l'une quelconque des revendications 15 à 19 et les moyens de conversion d'énergie acoustique en énergie électrique comprennent au moins un capteur piézo-électrique (24, 25).
- Réacteur spatial, caractérisé en ce qu'il comprend un convertisseur d'énergie selon la revendication 20.
- Générateur électrique pour véhicule automobile, caractérisé en ce qu'il comprend un convertisseur d'énergie selon la revendication 20.
- Générateur d'ondes thermo-acoustiques selon l'une quelconque des revendications 1 à 11 ou 15 à 19, caractérisé en ce que les plaques (4) et les cales (8) sont réalisées en Inconel ou en Incoloy.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0206421 | 2002-05-27 | ||
FR0206421A FR2839905B1 (fr) | 2002-05-27 | 2002-05-27 | Generateur d'ondes thermo-acoustiques |
FR0350084 | 2003-04-01 | ||
FR0350084A FR2853470B1 (fr) | 2003-04-01 | 2003-04-01 | Generateur d'ondes thermo-acoustiques a source chaude radio-isotopique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1367561A1 true EP1367561A1 (fr) | 2003-12-03 |
EP1367561B1 EP1367561B1 (fr) | 2006-03-01 |
Family
ID=29422042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03101535A Expired - Lifetime EP1367561B1 (fr) | 2002-05-27 | 2003-05-27 | Générateur d'ondes thermo-acoustiques |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1367561B1 (fr) |
AT (1) | ATE319159T1 (fr) |
DE (1) | DE60303737T2 (fr) |
DK (1) | DK1367561T3 (fr) |
ES (1) | ES2259403T3 (fr) |
PT (1) | PT1367561E (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2899943A1 (fr) * | 2006-04-13 | 2007-10-19 | Technicatome | Convertisseur thermo-acoustique et generateur d'energie electrique comprenant un convertisseur thermo-acoustique |
WO2009156717A3 (fr) * | 2008-06-26 | 2010-04-08 | The University Of Nottingham | Agencement d’échangeur thermique |
NL2004187C2 (nl) * | 2010-02-03 | 2011-08-04 | Stichting Energie | Warmtewisselaar. |
JP2018071821A (ja) * | 2016-10-25 | 2018-05-10 | 三菱電機株式会社 | 熱音響装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2874292B1 (fr) * | 2013-11-18 | 2017-09-27 | Centre National De La Recherche Scientifique | Générateur électrique magnétohydrodynamique thermoacoustique |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4599551A (en) * | 1984-11-16 | 1986-07-08 | The United States Of America As Represented By The United States Department Of Energy | Thermoacoustic magnetohydrodynamic electrical generator |
US5456082A (en) * | 1994-06-16 | 1995-10-10 | The Regents Of The University Of California | Pin stack array for thermoacoustic energy conversion |
US5813234A (en) * | 1995-09-27 | 1998-09-29 | Wighard; Herbert F. | Double acting pulse tube electroacoustic system |
DE19960966A1 (de) * | 1999-12-17 | 2001-07-05 | Bosch Gmbh Robert | Thermoakustische Maschine und Verwendung derselben in einem Kraftfahrzeug |
-
2003
- 2003-05-27 DE DE60303737T patent/DE60303737T2/de not_active Expired - Lifetime
- 2003-05-27 ES ES03101535T patent/ES2259403T3/es not_active Expired - Lifetime
- 2003-05-27 AT AT03101535T patent/ATE319159T1/de not_active IP Right Cessation
- 2003-05-27 DK DK03101535T patent/DK1367561T3/da active
- 2003-05-27 EP EP03101535A patent/EP1367561B1/fr not_active Expired - Lifetime
- 2003-05-27 PT PT03101535T patent/PT1367561E/pt unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4599551A (en) * | 1984-11-16 | 1986-07-08 | The United States Of America As Represented By The United States Department Of Energy | Thermoacoustic magnetohydrodynamic electrical generator |
US5456082A (en) * | 1994-06-16 | 1995-10-10 | The Regents Of The University Of California | Pin stack array for thermoacoustic energy conversion |
US5813234A (en) * | 1995-09-27 | 1998-09-29 | Wighard; Herbert F. | Double acting pulse tube electroacoustic system |
DE19960966A1 (de) * | 1999-12-17 | 2001-07-05 | Bosch Gmbh Robert | Thermoakustische Maschine und Verwendung derselben in einem Kraftfahrzeug |
Non-Patent Citations (1)
Title |
---|
MIGLIORI A ET AL: "LIQUID-SODIUM THERMOACOUSTIC ENGINE", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 53, no. 5, 1 August 1988 (1988-08-01), pages 355 - 357, XP000036922, ISSN: 0003-6951 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2899943A1 (fr) * | 2006-04-13 | 2007-10-19 | Technicatome | Convertisseur thermo-acoustique et generateur d'energie electrique comprenant un convertisseur thermo-acoustique |
WO2007118861A1 (fr) * | 2006-04-13 | 2007-10-25 | Societe Technique Pour L'energie Atomique Technicatome | Convertisseur thermo-acoustique et générateur d'énergie électrique comprenant un convertisseur thermo-acoustique. |
WO2009156717A3 (fr) * | 2008-06-26 | 2010-04-08 | The University Of Nottingham | Agencement d’échangeur thermique |
NL2004187C2 (nl) * | 2010-02-03 | 2011-08-04 | Stichting Energie | Warmtewisselaar. |
WO2011096801A3 (fr) * | 2010-02-03 | 2012-01-12 | Stichting Energieonderzoek Centrum Nederland | Echangeur de chaleur |
JP2018071821A (ja) * | 2016-10-25 | 2018-05-10 | 三菱電機株式会社 | 熱音響装置 |
Also Published As
Publication number | Publication date |
---|---|
DK1367561T3 (da) | 2006-06-26 |
DE60303737D1 (de) | 2006-04-27 |
EP1367561B1 (fr) | 2006-03-01 |
PT1367561E (pt) | 2006-07-31 |
ES2259403T3 (es) | 2006-10-01 |
ATE319159T1 (de) | 2006-03-15 |
DE60303737T2 (de) | 2006-11-23 |
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