BE1018684A3 - IMPROVEMENTS TO A SYSTEM OF ENERGY PRODUCTION. - Google Patents
IMPROVEMENTS TO A SYSTEM OF ENERGY PRODUCTION. Download PDFInfo
- Publication number
- BE1018684A3 BE1018684A3 BE2009/0149A BE200900149A BE1018684A3 BE 1018684 A3 BE1018684 A3 BE 1018684A3 BE 2009/0149 A BE2009/0149 A BE 2009/0149A BE 200900149 A BE200900149 A BE 200900149A BE 1018684 A3 BE1018684 A3 BE 1018684A3
- Authority
- BE
- Belgium
- Prior art keywords
- blades
- tower
- wind
- heat exchangers
- heated air
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/02—Devices for producing mechanical power from solar energy using a single state working fluid
- F03G6/04—Devices for producing mechanical power from solar energy using a single state working fluid gaseous
- F03G6/045—Devices for producing mechanical power from solar energy using a single state working fluid gaseous by producing an updraft of heated gas or a downdraft of cooled gas, e.g. air driving an engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/30—Wind motors specially adapted for installation in particular locations
- F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
- F03D9/35—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects
- F03D9/37—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects with means for enhancing the air flow within the tower, e.g. by heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/131—Stators to collect or cause flow towards or away from turbines by means of vertical structures, i.e. chimneys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/40—Use of a multiplicity of similar components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/20—Geometry three-dimensional
- F05B2250/23—Geometry three-dimensional prismatic
- F05B2250/232—Geometry three-dimensional prismatic conical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/20—Heat transfer, e.g. cooling
- F05B2260/24—Heat transfer, e.g. cooling for draft enhancement in chimneys, using solar or other heat sources
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
L'invention propose un système de production d'énergie à partir d'un fluide caloporteur comprenant un générateur d'électricité associé à une turbine alimentée par un flux d'air admis à la base d'une tour dans lequel ladite tour est munie de différent étages de pales, et en alternance, d'étages d'échangeurs de chaleur (10), lesdites pales étant actionnées par la montée de l'air réchauffé au fur et à mesure de son ascension dans la tour, le fluide caloporteur (4) alimentant les échangeurs de chaleur (10) en descendant à travers ceux-ci à partir de celui situé au plus haut niveau. A au moins un étage de pales il est prévu un dispositif de forme conique ou ogivale déviant radialement l'air chauffé ascendant vers l'extrémité desdites pales.The invention proposes a system for producing energy from a heat transfer fluid comprising an electricity generator associated with a turbine supplied by a flow of air admitted to the base of a tower in which said tower is provided with different stages of blades, and alternately, of stages of heat exchangers (10), said blades being actuated by the rise of the heated air as it ascends in the tower, the coolant (4 ) supplying the heat exchangers (10) down through them from the one located at the highest level. At least one stage of blades there is provided a device of conical or ogival shape radially deflecting the heated air rising towards the end of said blades.
Description
AMELIORATION A UN SYSTEME DE PRODUCTION D'ENERGIEIMPROVING A SYSTEM OF ENERGY PRODUCTION
La présente invention constitue une amélioration du système divulgué dans le document PCT/BE2006/000119 du même demandeur intitulé "Production d'électricité à partir d'énergies basses températures", dont le contenu est intégré dans la présente description par référence.The present invention is an improvement of the system disclosed in PCT / BE2006 / 000119 of the same applicant entitled "Production of electricity from low temperature energies", the contents of which are incorporated herein by reference.
Ce système est basé sur la production d'un vent chaud vertical, réchauffé par passage dans des échangeurs de chaleur situés sur plusieurs niveaux, et entre ces échangeurs sont placées des hélices d'éoliennes qui, en tournant, entraînent un rotor qui produira de l'énergie électrique.This system is based on the production of a vertical warm wind, heated by passing through heat exchangers on several levels, and between these exchangers are placed wind turbine propellers which, when rotating, drive a rotor that will produce heat. 'electric energy.
Les figures 1 et 2 illustrent schématiquement une tour selon cette invention avec les différents paliers d'échange de chaleur.Figures 1 and 2 schematically illustrate a tower according to this invention with the different heat exchange stages.
Les éoliennes classiques qui se multiplient actuellement dans le paysage présentent des tailles très grandes afin de capter un maximum de vent : surface de prise au vent (grands diamètres des pales) et grandefhauteurs (pour éviter les obstacles).The conventional wind turbines that are currently multiplying in the landscape have very large sizes in order to capture a maximum of wind: wind catching surface (large diameters of the blades) and grandfhauteurs (to avoid obstacles).
Cette conception est logique car l'homme n'est maître ni de la vitesse ni de la direction du vent.This conception is logical because man is not master of either the speed or the direction of the wind.
Mais le gigantisme a également des conséquences négatives : inerties plus grandes et structures plus lourdes.But gigantism also has negative consequences: greater inertia and heavier structures.
D'autre part, si l'énergie captable par une éolienne est proportionnelle au carré du diamètre de l'éolienne (Surface de prise au vent = pi D^/4), il n'en est pas moins vrai que cette quantité d'énergie est proportionnelle au cube de la vitesse (P +/-= 0,29 V3).On the other hand, if the energy that can be captured by a wind turbine is proportional to the square of the diameter of the wind turbine (Wind area = ft D / 4), it is none the less true that this quantity of wind energy is proportional to the cube of the velocity (P + / - = 0.29 V3).
L'amélioration proposée par la présente invention, par rapport au système antérieur, est basée sur une utilisation privilégiée de la vitesse du vent au détriment de la surface de prise au vent.The improvement proposed by the present invention, compared to the previous system, is based on a privileged use of the wind speed at the expense of the windward surface.
En effet, dans la demande de brevet susmentionnée, le vent créé est avantageusement fixe en direction, et sa vitesse est fonction de la chaleur disponible.Indeed, in the aforementioned patent application, the wind created is advantageously fixed in the direction, and its speed is a function of the available heat.
La figure 3 illustre une section inférieure d'une tour selon l'invention dans laquelle est illustré le dispositif déviateur d'air, qui peut être complété par un dispositif de déflecteurs qui suit lors de l'ascension de l'air chaud.3 illustrates a lower section of a tower according to the invention in which is illustrated the air deflector device, which may be completed by a deflector device which follows during the ascent of the hot air.
Les figures 4 et 5 montrent sous forme de schéma les améliorations que l'on peut attendre lorsque le vent est dévié vers la périphérie.Figures 4 and 5 show schematically the improvements that can be expected when the wind is diverted to the periphery.
Le paragraphe suivant expose une note de calcul relative aux améliorations chiffrées que l'on peut valablement estimer.The following paragraph presents a calculation note on the numerical improvements that can be validly estimated.
Effet sur le moment de rotationEffect on the moment of rotation
Dans le cas d'une éolienne classique (pour la simplicité on considère une éolienne à 4 branches), avec un vent VI, l'effort agissant sur les pales aura la forme montrée à la figure 3.In the case of a conventional wind turbine (for simplicity we consider a wind turbine with 4 branches), with a wind VI, the force acting on the blades will have the shape shown in Figure 3.
II apparaît que le moment qui déclenchera la rotation est égal aIt appears that the moment that will trigger the rotation is equal to
Ml = P x 1 ouMl = P x 1 or
Ml = p x l2Ml = p x l2
Si l'ensemble des efforts p est concentré sur les 4/10 de l'extrémité de chaque pale, la vitesse du vent V2 sera supérieure à VI.If all efforts p is concentrated on 4/10 of the end of each blade, the wind speed V2 will be greater than VI.
On peut selon une première approximation supposer que l'effet de pression sur les pales sera globalement le même.According to a first approximation, it can be assumed that the effect of pressure on the blades will be the same overall.
Les forces résultantes P se trouveront alors à 2/10 de l'extrémité, et le moment entraînant la rotation serait alors égal a M2 = P x 2 x O, 81 = 1,6 PI soit M2 = 1,6 MlThe resulting forces P will then be 2/10 from the end, and the moment leading to the rotation would then be equal to M2 = P x 2 x O, 81 = 1.6 PI or M2 = 1.6 M
Si on prévoit un dispositif déviant le vent vers la périphérie de sorte que la force résultante P est déplacée du centre de la pale (1/2) vers l'extrémité et à 1/8 du centre de rotation, le moment engendré (en supposant que P reste le même) sera augmenté de 60%.If a wind deflecting device is provided to the periphery so that the resulting force P is moved from the center of the blade (1/2) to the end and 1/8 of the center of rotation, the moment generated (assuming that P remains the same) will be increased by 60%.
L'effet de l'accélération du vent est analysé ci-après:The effect of wind acceleration is analyzed below:
Lorsqu'un vent d'une vitesse VI traverse une section SI, le volume qui passe à la seconde est égal a V1S1.When a wind of a speed VI crosses a section SI, the volume which passes to the second is equal to V1S1.
Si la section de passage du vent est réduite par bouchage (et donc déviation du vent ascendant) de la partie centrale (bouchage de 8 m sur 10 par exemple) et que le même volume doit passer par la section annulaire restant ouverte, alors la vitesse de sortie devra passer à V2 de façon à avoir:If the section of passage of the wind is reduced by plugging (and thus deflection of the rising wind) of the central part (clogging of 8 m by 10 for example) and that the same volume must pass through the annular section remaining open, then the speed output will have to go to V2 so that it has:
D'où: V2 = VI (100)/(100 - 64) * VI x 2,78Where: V2 = VI (100) / (100 - 64) * VI x 2.78
Supposons une première éolienne El d'un diamètre de 10m dans laquelle passe un vent VI de 2 m/s.Suppose a first wind turbine El with a diameter of 10m in which passes a wind VI of 2 m / s.
La puissance fournie par cette éolienne, serait (selon BETZ) proportionnelle à PI = + /- 0,23 x (10)2 x (2)3 = 184 Watt/sThe power supplied by this wind turbine would be (according to BETZ) proportional to PI = +/- 0.23 x (10) 2 x (2) 3 = 184 Watt / s
Supposons maintenant une éolienne identique avec un vent V2 de : V2 = VI x 2,78 = 5,56 m/sSuppose now an identical wind turbine with a V2 wind of: V2 = VI x 2.78 = 5.56 m / s
La puissance fournie par cette éolienne E2, serait (selon BETZ) proportionnelle àThe power provided by this wind turbine E2, would (according to BETZ) be proportional to
Supposons maintenant une éolienne E3 d'un diamètre de 8 m avec le vent V2.Now suppose an E3 wind turbine with a diameter of 8 m with wind V2.
La puissance fournie par cette éolienne E3, serait (selon BETZ) proportionnelle àThe power supplied by this wind turbine E3, would (according to BETZ) be proportional to
Cela veut dire qu'une éolienne/turbine P4:This means that a wind turbine / P4 turbine:
Ayant une surface au vent annulaire d'un diamètre extérieur = 10 m d'un diamètre intérieur = 8 m traversée par un vent de 5,56 m/s fournira une puissance proportionnelle à P4 = + /- (P2 - P3) = 1423 Watt/s D 1 où P4/P1 = 1423/184 = 7,73Having an annular wind surface of an outside diameter = 10 m of an inside diameter = 8 m traversed by a wind of 5.56 m / s will provide a power proportional to P4 = + / - (P2 - P3) = 1423 Watt / s D 1 where P4 / P1 = 1423/184 = 7.73
On peut dès lors conclure que le gain de puissance calculé selon l'invention est certainement supérieur aux pertes de charges induites par le rétrécissement de la section.It can therefore be concluded that the power gain calculated according to the invention is certainly greater than the pressure losses induced by the narrowing of the section.
Le système ayant pour but l'amélioration du rendement, les caculs ci-dessus sont donnés pour avoir une donnée de l'amélioration possible. Le maximum ne sera jamais atteint car il n'a pas été tenu compte des pertes de charges, celles-ci étant à déterminer au cas pas cas.The system aiming at the improvement of the yield, the caculs above are given to have a data of the possible improvement. The maximum will never be reached because it has not been taken into account the losses of loads, these being to be determined case by case.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE2009/0149A BE1018684A3 (en) | 2009-03-16 | 2009-03-16 | IMPROVEMENTS TO A SYSTEM OF ENERGY PRODUCTION. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE200900149 | 2009-03-16 | ||
| BE2009/0149A BE1018684A3 (en) | 2009-03-16 | 2009-03-16 | IMPROVEMENTS TO A SYSTEM OF ENERGY PRODUCTION. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE1018684A3 true BE1018684A3 (en) | 2011-06-07 |
Family
ID=41228688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE2009/0149A BE1018684A3 (en) | 2009-03-16 | 2009-03-16 | IMPROVEMENTS TO A SYSTEM OF ENERGY PRODUCTION. |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE1018684A3 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2307982A1 (en) * | 1975-04-18 | 1976-11-12 | Granata Francois | Air driven generator utilising solar energy - with air heated by sun rising up glass chimney to drive turbine |
| FR2539821A2 (en) * | 1982-08-12 | 1984-07-27 | Chauveau Andre | Converting collector of renewable energy |
| DE3604448A1 (en) * | 1986-02-13 | 1987-08-27 | Adolf K Reuter | Wind power system |
| DE68916796T2 (en) * | 1988-05-16 | 1995-02-16 | Alister Ure Reid | DEVICE FOR OBTAINING ENERGY FROM FLOWING FLUIDS. |
| FR2844561A1 (en) * | 2002-09-16 | 2004-03-19 | Bernard Pierre Million | Device for transforming solar energy into mechanical and electrical energy, comprises a convergent mirror and a turbine unit with electrical generator mounted on an orientable support |
| CA2432567A1 (en) * | 2003-06-26 | 2004-12-26 | Carl Olaf Strand | Wind turbine wheel |
| CA2466189A1 (en) * | 2004-05-12 | 2005-11-12 | Joe L. Naughton | Rising energy |
| WO2007112519A1 (en) * | 2006-03-31 | 2007-10-11 | John Azar | Production of electricity from low-temperature energy sources |
-
2009
- 2009-03-16 BE BE2009/0149A patent/BE1018684A3/en not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2307982A1 (en) * | 1975-04-18 | 1976-11-12 | Granata Francois | Air driven generator utilising solar energy - with air heated by sun rising up glass chimney to drive turbine |
| FR2539821A2 (en) * | 1982-08-12 | 1984-07-27 | Chauveau Andre | Converting collector of renewable energy |
| DE3604448A1 (en) * | 1986-02-13 | 1987-08-27 | Adolf K Reuter | Wind power system |
| DE68916796T2 (en) * | 1988-05-16 | 1995-02-16 | Alister Ure Reid | DEVICE FOR OBTAINING ENERGY FROM FLOWING FLUIDS. |
| FR2844561A1 (en) * | 2002-09-16 | 2004-03-19 | Bernard Pierre Million | Device for transforming solar energy into mechanical and electrical energy, comprises a convergent mirror and a turbine unit with electrical generator mounted on an orientable support |
| CA2432567A1 (en) * | 2003-06-26 | 2004-12-26 | Carl Olaf Strand | Wind turbine wheel |
| CA2466189A1 (en) * | 2004-05-12 | 2005-11-12 | Joe L. Naughton | Rising energy |
| WO2007112519A1 (en) * | 2006-03-31 | 2007-10-11 | John Azar | Production of electricity from low-temperature energy sources |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Effective date: 20110331 |