EP2318707A1 - Appareil éolien amélioré - Google Patents

Appareil éolien amélioré

Info

Publication number
EP2318707A1
EP2318707A1 EP09787815A EP09787815A EP2318707A1 EP 2318707 A1 EP2318707 A1 EP 2318707A1 EP 09787815 A EP09787815 A EP 09787815A EP 09787815 A EP09787815 A EP 09787815A EP 2318707 A1 EP2318707 A1 EP 2318707A1
Authority
EP
European Patent Office
Prior art keywords
eolic
silos
conduct
air
silos according
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.)
Withdrawn
Application number
EP09787815A
Other languages
German (de)
English (en)
Inventor
Livio Biagini
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 EP2318707A1 publication Critical patent/EP2318707A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • 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
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/22—Wind motors characterised by the driven apparatus the apparatus producing heat
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having a plurality of rotors
    • 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
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F05B2240/132—Stators to collect or cause flow towards or away from turbines creating a vortex or tornado effect
    • 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

Definitions

  • the present invention relates to an improved Aeolian apparatus. More specifically, the invention relates to an Aeolian silos permitting optimally exploiting power available within the eolic place.
  • the most diffused system in the eolic generation field is the one comprised of a wind turbine (or blade rotor), rotating about a horizontal axis supported by a pole having suitable diameter and height.
  • Air flow acting on turbine is that of the specific eolic field wherein the eolic collector is provided.
  • Wind Energy Collectors W. E. C
  • turbines having a bigger diameter (even 150 m) and thus with always higher costs.
  • Increase of rotor diameter is necessary to obtain an interception area larger than the eolic field current.
  • Height of the pole is necessary to permit realizing a rotor with a bigger diameter, but at the same time this higher height of rotor from the ground involves a higher wind speed, the intensity of which increases with the increasing of the height over ground.
  • the invention according to the present invention permitting obtaining a bigger air flow rate, and thus, with respect to the known solutions, collecting the same power from the same eolic field with a rotor having a smaller diameter, and a smaller height over the ground, i.e. with the same diameter and height collecting a much higher power.
  • Another advantage of the solution according to the present invention is that of permitting collecting the same power by a lower field speed.
  • silos characterized in that it comprises, from the bottom toward the upper portion, or vice versa, a base, a body and a turbine, said silos providing n conducts for inlet of air, with n > 2, a first outer conduct, with intake of air laterally from said silos body, and a second conduct inner with respect to said first conduct, with inlet of air from the bottom.
  • said silos provide a diffuser downward said turbine.
  • said silos provide 3 conducts.
  • the silos provides a first outer conduct, with intake of air laterally from said silos body, a second conduct and a third conduct, inner with respect to said first conduct, with inlet of air from the bottom, the end of said third conduct ending at a higher level with respect to the end of said second conduct.
  • a diffuser is provided downward said turbine.
  • said diffuser can be comprised of a series of conical elements, having an opening angle of about 7°, preferably a succession of five elements.
  • said silos can provide a number of conduct higher than 3, preferably a number multiple of 3.
  • said second and third conducts have the air intake realized in said base.
  • said first conduct provides fins, positively oriented with respect to the dominant winds within the eolic field, within the air inlet.
  • outlet of said conduct is provided at the height of the "vorticous filament" caused by the flow within said first conduct.
  • fins on the inlet of said first conduct can be oriented.
  • a converging element is provided at the outlet of each conduct, increasing the flow speed.
  • a converging element is provided downward said turbine, at the outlet of said conducts.
  • a movable inlet of air arriving from the eolic field is provided, that can be oriented on the basis of the wind direction.
  • Silos according to the invention can exploit, as an alternative or in addition to the wind flows, thermal energy taken from accessories supplies.
  • the present invention will be now described, for illustrative but not limitative purposes, according to its preferred embodiments, with particular reference to the figure of the enclosed drawings, wherein: figure 1 schematically shows an embodiment of an Aeolian silos according to the invention; figure 2 is a second schematic view of the silos according to figure
  • figure 3 is a plan view of the Aeolian silos according to the invention
  • figure 4 is a top view of the Aeolian silos according to the invention
  • figure 5 is a section view taken along line b-b' of figure 3
  • figure 6 is a view taken according to direction A of figure 3
  • figure 7 is a section view taken along line c-c' of figure 3
  • figure 8 is a perspective view of an inner particular of the Aeolian silos according to the invention
  • figure 9 is a wind distribution scheme through a standard eolic field.
  • Aeolian silos shown in the figures is comprised of a body 1 , made up of sheet having a circular section, with a diameter D and a height H, supported by a pair of pillars 2, comprising base 2, which are opposed each other, and suitably designed.
  • Silos 1 rests on a suitable base 2, the function of which will be described in the following.
  • a vertical section of half of silos 1 according to the invention is shown in figure 1 (from the half line to the periphery), indicated by letter T, and it shows a cross section where a wall 3 that can be open is shown, with full height fins, and a mirror-like fin system on the opposed wall.
  • Orientation of silos 1 is such that walls that can be open are frontally provided with respect to the prevailing winds within the eolic field.
  • a "wind rose” is shown in figure 9, showing how it usually is present in a standard eolic field.
  • swinging fins are indicated by letter A that can be open by a suitable program, so as to receive wind from a direction tangential with respect to the perimetral wall of the silos 1.
  • Specific pressure on the surface unit is a quadratic function inverse to the distance, measured in meters, of the surface taken into consideration from the rotation centre.
  • a "vorticous filament" having ray R is realised, with a depression that can vary in function of the quadrate of the distance from the vorticous centre.
  • a duct 4 within the vorticous centre communicating with the outer eolic field an air current intake occurs toward the inside of silos 1 , thus a flow rate which is added to the air flow arriving from the outside field. Speed and flow rate of the field will be increased due to the vortex suction.
  • the communication duct 4 which is suitably connected with the outer eolic field through an independent port, on base 2.
  • the embodiment shown has a third air duct 5, conveying air from "outer" eolic field port up to the inner part of silos.
  • Duct 5 ends with an outlet port which is higher than the outlet port of duct 4, and it is in the central part of rotor.
  • Eolic field duct 5 air port is within silos 1 base 2, as the other port 4, but it is separated from the latter so as to be an independent flow rate source.
  • three different sources are realised, for generalised index "n”, having an independent flow rate, and without any negative influence each other.
  • vorticous current increases its depression with inflow 4 (and 5), even remaining practically separated from boundary layer of "vorticous filament”.
  • a "source current” is induced, creating the above mentioned effect.
  • duct 5 it is evident separation of flow with respect to other flows, being said duct obtained by a tube.
  • duct 4 the same applies from the eolic field port to the throat, where its flow exits within the "vorticous filament” caused by current 3, remaining confined within the low pressure zone realised by vortex. In fact, it is the same "vorticous filament” developed by vortex to make boundary layer between flow 4 and flow 3.
  • Flow 3 has a helicoidal motion within silos volume (from the base of the silos to the rotor plane, indicated by reference S).
  • a fin assembly having a vertical extension. Net fins, driving the above volume into vertical channels, permit straightening flow thread, that will act on the leading edge of the wing contour of rotor blades, with the same vertical direction of currents arriving from ducts 4, 5.
  • Air flow arriving from inside silos 1, crosses area covered by rotor, yielding to blades, according to the aerodynamic theory of wing contours, main part of energy as kinetic energy (1/2mV 2 ) and pressure energy, leaving then rotor to go to the atmosphere.
  • residual current speed is under the eolic field value, as well as its pressure, that will be under the atmospheric pressure of an amount indicated in Pascal depending on different factors.
  • Being surrounding atmosphere part of the eolic field, from which energy has been extracted, with higher speed and atmospheric pressure, immediately current will take again, after having left the rotor, values of eolic field, as soon as it will mix with outer atmosphere.
  • Discharge ration between outlet and inlet (corresponding to the rotor area) areas must be very high to cause a strong sucking effect, and, since maximum inclination of the conical wall of discharge must be equal or under 7°, it is obtained a sucking effect of "only" 1.9 times the regular flow by a tube long 130-150 m (which is obviously not possible).
  • One of the solutions suggested can be applied to the solution according to the present invention providing a vertical axis rotor, using a particular innovative particular.
  • a short conical discharge with an inclination of 7° starts from the discharge area.
  • a preferred ratio exists between diameter and length.
  • a second conical tube with a larger diameter is juxtaposed, having an inclination of 7° starting from diameter where juxtaposition occurs.
  • injections of air taken from current close to the rotor, through the slot is an eolic energy "cushion", resting on the wall of the second tube portion, and, inward, on the air cone flowing toward the exit. This prevents inflow of outside atmosphere, and outlet current of rotor still expands, with a further reduction of pressure with respect to atmosphere. Since new tube portion opens of 7° with respect to the first one, cone will open of 14° with two tube parts.
  • Three silos as described in the above are placed at the vertex of a triangle, realising them up the section S indicated in the enclosed drawing.
  • a structure is put above the three silos, comprised of an envelope connecting them and collecting air flows, that will directed, by suitable direction fins, within the common rotor housing, which is realised within the envelope. It is thus evident that a single rotor will be supplied by nine ducts arriving from the outer eolic field.
  • each silos for example with an outer diameter of 40m
  • a rotor having a diameter of 70 m
  • Ground occupancy 150 m x 150 m, only 50% build up. Eolic field is limited to 6 - 7 m/sec.
  • Cost of such a system is a fraction of the real cost of silos V 1 cost presently lower with respect to the traditional pole WEC. Considering cost per KWh of energy produced per year, cost of eolic silos is about 50% of known WEC.
  • each range will occupy an arc of about 150°.
  • Each vertical fin will have a pin, two or more supports and a motion system.
  • inlet of air within silos is not direct but in a structure outside the perimeter, provided with fixed fins, suitably oriented, faced toward the wind of the two opposed ranges.
  • fixed fins suitably oriented, faced toward the wind of the two opposed ranges.
  • two (opposed) tangential walls are obtained on the tower perimeter, each one with an arc which is the half of the one described in the above.
  • number of movable fins is the half, with the consequent advantages of constructions savings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

L'invention concerne un silo éolien (1) qui comporte, de la partie inférieure vers la partie supérieure, ou inversement, une base (2), un corps (1) et une turbine, ledit silo (1) fournissant n conduits (n ≥ 2) pour l'entrée d'air, un premier conduit externe (3), l'admission d'air étant latérale à partir dudit corps de silo, et un second conduit (4) à l'intérieur par rapport audit premier conduit (3), l'entrée d'air se faisant depuis la partie inférieure.
EP09787815A 2008-08-01 2009-07-30 Appareil éolien amélioré Withdrawn EP2318707A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2008A000420A IT1391470B1 (it) 2008-08-01 2008-08-01 Silos eolico perfezionato.
PCT/IT2009/000348 WO2010013282A1 (fr) 2008-08-01 2009-07-30 Appareil éolien amélioré

Publications (1)

Publication Number Publication Date
EP2318707A1 true EP2318707A1 (fr) 2011-05-11

Family

ID=40590001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09787815A Withdrawn EP2318707A1 (fr) 2008-08-01 2009-07-30 Appareil éolien amélioré

Country Status (6)

Country Link
US (1) US20110229316A1 (fr)
EP (1) EP2318707A1 (fr)
JP (1) JP2011530031A (fr)
CN (1) CN102138000A (fr)
IT (1) IT1391470B1 (fr)
WO (1) WO2010013282A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITLE20100010A1 (it) * 2010-07-29 2012-01-30 Srl Saim Impianto per la produzione di energia elettrica alimentato da fonte solare ed eolica, denominata turbina solare treelux (tst)
EP3489507B1 (fr) * 2017-11-28 2023-04-26 Nordex Energy SE & Co. KG Procédé et dispositif destinés au fonctionnement d'une éolienne

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR28797E (fr) * 1924-02-29 1925-03-23 Construction barrage destinée à capter le vent et à le diriger sur les appareils d'utilisation
ES8301330A1 (es) * 1980-07-24 1982-12-01 Central Energetic Ciclonic Sistema para la obtencion de energia mediante flujos simili-lares a los que conforman un ciclon o un anticiclon natural
JPS5765882A (en) * 1980-10-09 1982-04-21 Shimizu Constr Co Ltd Wind-power generation and apparatus thereof
JPS5925091A (ja) * 1982-08-04 1984-02-08 Mitsui Eng & Shipbuild Co Ltd トルネ−ド式風力発電装置
DE3407881A1 (de) * 1984-03-03 1985-09-12 Franz Karl 8500 Nürnberg Krieb Energieversorgungssystem
CA2064797A1 (fr) * 1990-06-18 1991-12-19 Andrei A. Fedoryaka Methode de conversion de l'energie potentielle d'un ecoulement d'air en energie mecanique servant a la rotation d'un arbre et appareil de mise en oeuvre de ladite methode
US5646320A (en) * 1993-10-28 1997-07-08 Henkel Corporation Process for making isethionate ester salts
ES2166663B1 (es) * 1999-05-20 2003-12-01 Tryp Multiserv S L Torre de conversion ciclonica o anticiclonica.
AU2003903645A0 (en) * 2003-07-11 2003-07-31 Davidson, Aaron Extracting energy from fluids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010013282A1 *

Also Published As

Publication number Publication date
JP2011530031A (ja) 2011-12-15
WO2010013282A1 (fr) 2010-02-04
CN102138000A (zh) 2011-07-27
US20110229316A1 (en) 2011-09-22
ITRM20080420A1 (it) 2010-02-02
IT1391470B1 (it) 2011-12-23

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