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
  • 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
  • F03D9/20—Wind motors characterised by the driven apparatus
  • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
• • 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
  • 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
  • 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
  • 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

Definitions

• the present invention relates to an arrangement and a method for the exploitation of low temperature energies with electricity generation by artificial wind and medium speed turbines.
• the soft energies used for the production of electricity are essentially those of the wind, by use of large diameter wind turbines.
• the choice of large diameters is based on the fact that the energy that can be captured is a function of the catchment area, in other words the square of the diameter of the blades of the wind turbine.
• the present invention aims to provide a more flexible improved system that allows to recover more energy by transforming the "wind" system into a particular "turbine” system.
• Wind turbines used today are limited to wind speeds below 80 or 90 km / h, for the reasons explained above.
• RPM speed of the order of 20 to 30 km / h.
• Gas turbines operate on their own with much higher gas velocities, generally subsonic of the order of 800 Km / h (the aircraft engines can exceed the speed of sound) and the yields are much higher.
• the system presented below is for its part at an intermediate level of speeds (of the order of one hundred to three hundred km / h) and, according to a main characteristic, uses several stages of fins (and not wind turbines). ) significantly improving the yield.
• the present invention thus relates to such a system.
• the object of the invention is to propose a system designed to produce electricity mechanically from the recovery of calories conveyed inside a system of heat exchangers fixed on several floors, ie in factions.
• stages of fixed heat exchangers comprising fins or blades fixed on a central, vertical and rotary axis, which axis extends down to become the axis of a generator. electricity located in the lower part.
• a greater or lesser speed acceleration can be achieved by providing an air intake section (at the base) much higher than the air outlet section (at the top).
• fig. 1 represents a vertical half-section of an arrangement according to the invention.
• the figs. 2 and 3 show a horizontal section of a blade stage (plane A of Fig. 1) presented in two embodiments: multiple blades and multiple overlapping blades. The choice is made according to the dimensions of the installation and the wind speeds reached.
• the system is formed of a tower composed of two concentric cylinders 1, 2 having the same central vertical axis 20.
• the level of air heating at ground level is the first level of heating (actually "preheating"), where the annular air inlet section 7 is larger. than output 8, hence the appearance of an acceleration phenomenon.
• the air is preheated in 9 before passing through one heat exchanger 10a of the first stage El to be heated again before entering the stage E2, one 'of the first level of turbine blades.
• the “even stages” are movable, and rotate around the vertical center axis 20 of the tower, thus constituting the “turbine” part of the system. They consist of turbine blades or vanes 40, welded to the inner cylinder 2 of the system so as to be driven by a rotational movement produced by the force of the hot air 30 which rises at speeds which can be much higher than the speed of the wind turbines.
• the exchangers 10 are fixed directly on the outer cylinder 1, and can be cantilevered or placed if necessary -in the case of large dimensions- on the central axis by means of a support 12 of ball bearings or of an equivalent arrangement (since
• the axis will rotate and the heat exchangers are fixed).
• turbine blade vanes 40 are fixed directly and, preferably only, on inner cylinder 2, just like the blades of a turbine on their rotary support.
• Fig. 1 however illustrates the case where the ends of the blades rest on annular consoles 3.
• the heat transfer liquid 4 circulating in thermally insulated pipes, is fed to the highest exchanger 10d, and from there it descends to supply successively and in sequence the other exchangers 10c, 10b and 10a from the top to the the lowest.
• This circulation of the liquid 4 is in a natural way, as the natural circulation of hot water from the central heating of a building, but can be "helped" by one or a few circulation pumps that will give the movement a constant rhythm.
• the air that is drawn into the bottom of the system is at the outside air temperature and has the same degree of hygrometry.
• the air In contact with the fins of the first heat exchanger (preheating) at the floor where circulates the coolant which has already lost much of its temperature, the air is preheated. As a result, it expands, thus creating an overpressure that pushes this air upwardly through said preheating fins before passing through the heat exchanger of the stage E1 and the blades 40 of the turbine at the level of 1 E2 floor.
• a storage means can be provided for the coolant, for example in thermally insulated tanks.
• the heat of the heat transfer fluid can come from different sources, for example a geothermal source, solar collectors or the heat recovery of an industrial process.
• the liquid can be heated during the day in a circuit separate from that of the daytime operation and stored in one or more reservoirs in order to be used at night (the outside air being less hot, this will therefore give a better yield which at least partially compensates for the losses due to cooling of the coolant during storage).
• the coolant consists of ordinary water which circulates in finned tubes aligned on the bottom of the the mine, pipes whose outer surface is protected from chemical attack for example by a suitable paint.
• the invention therefore describes a transmission system and fractional recovery of the energy of a coolant causing an artificial wind, particularly flexible and efficient. It will be understood that many variations can be made to the device of the invention described below without departing from the scope of the invention. It is thus possible to provide, in particular at startup, progressive clutch means of the different levels of blades relative to the rotor.

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• 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)

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• 2006
  • 2006-11-06 US US12/295,333 patent/US20090315333A1/en not_active Abandoned
  • 2006-11-06 CN CNA2006800547708A patent/CN101449055A/zh active Pending
  • 2006-11-06 EP EP06804577A patent/EP2004994A1/de not_active Withdrawn
  • 2006-11-06 WO PCT/BE2006/000119 patent/WO2007112519A1/fr not_active Ceased
  • 2006-11-06 MX MX2008012652A patent/MX2008012652A/es unknown

Non-Patent Citations (1)

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