WO2013088392A1

WO2013088392A1 - Solar concentrator for the generation of heat and electricity

Info

Publication number: WO2013088392A1
Application number: PCT/IB2012/057293
Authority: WO
Inventors: Roberto POLILLO; Stefano MONACO; Francesco MONACO; Antonio LINDIA
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-14
Filing date: 2012-12-13
Publication date: 2013-06-20
Anticipated expiration: 2014-06-14
Also published as: ITCS20110039A1

Abstract

The invention provides a system for solar concentration of the type solar dish characterized by the integration and combination of several sources of renewable energy to convert solar energy and wind energy to produce electricity and heat. The invention provides a system that tracks the sun on two axes and consists of a parabolic body covered with reflective material that concentrates the solar rays on a heat exchanger, allowing the production of thermal energy. The invention also allows to produce electrical energy by means of a photovoltaic panel and a wind turbine. The electrical energy produced by the turbine and by the photovoltaic panel is used to power the motors of the moving system and makes the system electrically autonomous. The invention allows to adjust the power to the heat exchanger without defocus the system, while the same is in operation, by means of an actuator. The invention allows to ensure the system to tipping due to the action of wind, to protect the reflective elements from atmospheric agents, to clean the reflective elements and to work on the exchanger and on the photovoltaic panel, assuming a security configuration, thanks to a C-shaped or S-shaped bust.

Description

SOLAR CONCENTRATOR FOR THE GENERATION OF HEAT AND ELECTRICITY

FIELD OF THE INVENTION

The invention provides a system for solar concentration of the type solar dish in which solar radiation is focused on a limited area and well defined. The system chasing the sun on two axes consists of a parabolic body covered with reflective material that concentrates the solar rays on a heat exchanger, allowing the production of thermal energy. A photovoltaic panel, positioned on the back of the heat exchanger produces electricity. A wind turbine positioned on the back of the parabolic body uses the wind trust and produces electricity when the system is in the security configuration and are not in operation the heat exchanger and the photovoltaic panel. In Figure 1 shows a scheme of the invention.

PRIOR STATE OF THE ART

The solar concentration systems or CSP (Concentrating Solar Power) conducts heat at high temperature (up to 1000 ° C), usable, for example, to actuate thermodynamic cycles and then to produce mechanical power and consequently electric, concentrating the sun's rays on an area of defined size and shape depend on the type of the concentrator.

The technologies currently best known are:

parabolic trough, linear fixed to the structure with fire;
solar dish, with focus fixed to the circular structure;
solar towers, with roughly circular stationary fire;
linear Fresnel mirrors, with focus fixed linear.

In particular, the CSP systems 1 and 2 are based on the optical-geometric properties of the parabolic body, that directed with its axis parallel to sunlight (with solar tracking system for tracking respectively at 1 and 2 axes), focus the solar radiation, generating an image depending on geometry of concentration. The CSP systems 3 and 4 are based instead on optical discrete, generally planar, respectively to 2 and 1-axis tracking. The ultimate goal is to concentrate as much solar energy for overlapping of reflections of the individual reflective elements, without thereby realize a focal image. All these systems are composed of a concentrator that concentrates the sun's rays by reflection, a receiver that collects solar energy and is coupled to a converter that transforms solar energy into mechanical energy and / or heat and possibly into electrical energy.

The concentrators CSP 2 and 3 are those with the highest concentration factors of solar radiation, being able to reach in practice values of 1000 or even 2000 suns. The concentrators CSP 1 and 4 operate instead with concentration factors between 20 and 50 suns.The distinguishing feature of CSP concentrator 1 and 2 is to target the best towards the sun's position and mount the receiver at the focal point of a paraboloid. The receiver must then strictly follow the motion of the concentrator. In the case of solar dish (CSP system 2) also the converter is typically rigidly connected to the concentrator and also it follows the motion. The CSP systems 1, 3 or 4 are commonly used to generate electricity on a large scale (from 100 kWe to 100 MWe, where the subscript 'e' indicates the electric power) and generally use as converters thermodynamic turbine. The CSP systems of type 2, the solar dish, lend themselves instead to the generation of small electrical powers (typically up to 30 kWe) and are often used with a thermodynamic converter -type stirling engine. A further concentrator is described in the document IPN WO201045269.

In the state of the art there isn't any CSP system which allows the adjustment / power partialization. The defocusing occurs through azimuthal and zenithal movements of the entire system, and because of the lack of concentration, this causes the termination of the production of energy. Furthermore, the defocusing occurs by moving the system and moving the focus, the rays reflected from the parabolic body, from a known point that is located on the axis of the parabolic body, to a point not well defined. These reflections can cause blindness, fire, obstruction of air handling of all types and damage to property and people. In the state of the art there isn't then any application that allows the system to take a safety position such that it has the perfect closing of the same on itself. We have therefore systems unbalanced by the action of the wind.

Similarly, there is no protection of the reflecting surface, permanently exposed to atmospheric agents and for which there is provided not even a cleaning system. There are no systems that continue to produce energy despite being in a safety position, and to cease its specific function of solar concentration. In the state of the art there are no systems with solar concentration, the type solar dish, which integrate other technologies for the production of energy (solar panels, wind turbines, fuel cells, gas turbines, a division of conversion of chemical energy, a division of storage of thermal energy, a gas turbine, a multicylinder engine, an engine multipistone, a steam turbine, tower of evaporation, a fuel cell and a system of generation based on the water).

OBJECTIVE THE INNOVATION WANTS TO ACHIEVE

The present invention consists in a CSP system of new concept that generates a focal area well defined and regular and lends itself to feed heat exchangers with the advantage of partialize and adjust the thermal power generated by a heat exchanger and electric power generated by a photovoltaic panel. This partialization and power control is possible through the use of an actuator. This system also, in its security configuration, that when it does not work as a solar concentrator, allows to continue to produce energy, through a wind turbine that generates electricity by exploiting the wind thrust. The system is able to generate heat and electricity through the integration and eventually the combination of several sources of renewable energy.

Furthermore, in the case of reflective surfaces more extensive, the invention may be coupled to turbine systems.

The system, illustrated in Figure 1 and Figure 2, consists of a bust of suitable shape, which develops in height, constrained in its lower part to a fifth wheel, through which the motion transmitted by a gearemotor by the effect of a chain connection, allows the entire system to move azimuthally.

In the upper part of the bust, is an envelope named 'beak', that contains the zenith gearmotor, that through of a shaft transmits motion to two arms. In addition to contain and protect from atmospheric agents the zenith moving system, the 'beak', reproduces the beak of a bird.

At one end of these arms is connected a parabolic body, covered with reflective material, and stiffened by a 'spider' structure, which reflects the sun's rays on a heat exchanger, on the other end of the arms. This exchanger through an appropriate system of recirculation of an appropriate fluid, produces thermal energy. On the back of the heat exchanger is placed a photovoltaic panel that uses the solar radiation and produces electricity during the entire cycle of solar tracking.

The two arms are perfectly specular and differ, because on one arm there is mounted an actuator and on the other one is mounted a gas spring. The actuator imposes the motion and allows to vary the position of the heat exchanger and the photovoltaic panel, allowing the defocusing and adjustment of the thermal power and electric. The gas spring follows the motion of the actuator by moving the arm, on which is bound, in synchrony with the arm on which is placed the actuator. On the back of the parabolic body is fixed a wind turbine that operates when the system assumes the security configuration. This configuration is taken in the evening and / or when the wind exceeds a certain speed. In the configuration of security, the wind turbine starts to operate and produces electricity, as a result of wind speed (Figure 24).

The present application provides a number of advantages compared to the state of the art. This system, through integration with other forms of energy, such as photovoltaics and wind power, is a completely autonomous and self-powered from the electrical point of view. In fact, the energy produced by the solar panel and wind turbine is used to power the motors that allow the azimuth and zenith moving system.

These motors are small, relying on a fully balanced system in which the weights placed on the ends of the two arms are proportional to their distance from the zenith rotation pin. By virtue of this, the electricity produced by the solar panel, photovoltaic elements located on the bottom frame and the wind turbine is enough to power these motors. This is very advantageous from the point of view of the overall energy balance, because, as mentioned, the system is electrically independent.

The defocusing and adjustment of the thermal and electrical power (in relation to user requirements) is obtained by means of an actuator, which moves the heat exchanger, back and forth respect to the focus. Contrary to the present state of the art where the defocusing is obtained moving the whole system azimuthally or zenithally.

During the step of defocusing the reflected rays always strike the heat exchanger (Figure 21, 22, 23).

This prevents abnormal focalizations, focalizations in points not properly defined, problems for air traffic, blindness, fire, damage to property or persons caused by the movement of the whole system azimuthal or zenithal.

The photovoltaic panel located on the back of the radiator body, even during the step of defocusing, continues to track the sun, intercepting solar radiation and continuing to produce electricity.

The system, due to the particular shape of the bust, assumes a specific security configuration. This security configuration, which is assumed in the evening or because of a high wind speed, consists in closing the system on itself, turning the concavity of the parabolic body downwards and slightly retracting the exchanger using the actuator (Figure 24). This position, contrary to the present state of the art, allows to continue to produce energy, through the entry into operation of the wind turbine on the back of the parabolic body.

The security configuration, contrary to the present state of the art, minimizes the surface impacting with the wind, and being the concavity of the parabolic body facing downwards, at the same time allows the protection of the reflecting surface from the atmospheric agents, and the eventual cleaning of the same.

In addition, when the system assumes the security configuration, you have the possibility to intervene on the heat exchanger and the solar panel, without any problem of accessibility, being able to work comfortably at a shortly distant from the ground. In this way it avoids the use of ladders, scaffolding, mobile or stationary, and any intervention in height, that would be necessary in the event that it should intervene to the absorber maintaining the operating configuration.

DESCRIPTION OF THE DRAWINGS

The structure, operation and advantages of this invention will be very evident in accordance with the following description of the drawings, and the claims. The drawings are not necessarily in scale, as it focuses attention on illustrate the principles of the invention.

Figure 1 is a front 3D view of the system of solar concentration durign its phase of tracking.

Figure 2 is a back 3D view of the system of solar concentration durign its phase of tracking represented in Figure 1.

Figure 3 is a side view of the solar concentrator in the same phase of tracking of Figures 1 and 2.

Figure 4 is a 3D view representing the whole azimuthal moving system.

Figure 5 is a 3D view of the lower base (7).

Figure 6 shows a 3D view, a side view and a bottom view of the bust (8)

Figure 7 is an exploded 3D view of the beak (10) and of the zenithal moving system.

Figure 8 is a 3D view of the beak (10) and of the zenithal moving system fully assembled.

Figure 9 is a 3D view illustrating the mounting of the pins (23) and (24).

Figure 10 is a 3D view illustrating the occurred installation of the pins (23) and (24) and completing of the assembly of the arms (9a) and (9b)

Figure 11 is a section made along the section line AA shown in Figure 3, which shows a cross-section of the moving system and the connection between the transmission shaft, the pins (23) and (24) and the arms (9a) and (9b).

Figure 12 represents two 3D views, one front and one back of the large plate (15).Figure 13 represents two 3D views, one front and one back of assembly large plate (15) and parabolic body (16).

Figure 14 represents two 3D views, one front and one back of the single segment parabolic (161), where the holes are visible for fixing to the large plate (15) and the radial holes necessary for joining the segments parabolic (161) between them.

Figure 15 is a 3d back view that represents the parabolic body (16), the large plate (15), and the spider structure (17).

Figure 16 and Figure 17 represent two 3D views of the components that constitute the spider structure(17).

Figure 18 is a 3D view of the rod (21).

Figure 19 is an exploded 3D view of the assembly box (19).

Figure 20 represents a section practiced at the centerline of the assembly box (19).

Figure 21 is a side view of the solar concentrator with a cross section made along the section line BB shown in figure (11), which represents how the sun's rays arrive on the parabolic body (16) and how they are reflected. In this table the system is in configuration of operation.

Figure 22 is a side view of the solar concentrator with a cross section made along the section line BB shown in figure (11), which represents how the sun's rays arrive on the parabolic body (16) and how they are reflected. In this table the system is in configuration of defocusing with the actuator (11) retracted.

Figure 23 is a side view of the solar concentrator with a cross section made along the section line BB shown in figure (11), which represents how the sun's rays arrive on the parabolic body (16) and how they are reflected. In this table the system is in configuration of defocusing with the actuator (11) elongated.

Figure 24 is a side view of the system in the configuration of security.

IMPLEMENTATION OF A SOLAR CONCENTRATOR

Referring to the drawings illustrated above will describe the composition and operation of the system which has been already realized an implementation.

The solar concentrator, is composed by a base (1) securely anchored to the ground, on which is fixed a fifth wheel (230), consisting of a lower part (2) fixed and a movable upper (3), which can rotate relative to the fixed one thanks to the spherical rolling elements interposed between the parties. This fifth wheel (230) is the component through which occurs the azimuthal movement of the entire system. The azimuthal movement is in fact guaranteed by a gearmotor (4), integral with the base (1), that drives a pinion (5) keyed on its shaft which in turn through a link chain (6), rotates the top part of the fifth wheel (3) (Figure 4).

In the movable upper part (3) of the fifth wheel (230) is anchored in the lower base (7) (Figura5) to which is bolted the bust (8) (Figure 6), by means of a plate (81) welded at the bottom of same and stiffened by four handkerchiefs (82). The plate (81) has holes along the perimeter for fastening to the lower base (7), and a central hole larger for the passage of communication cables and pipes. The bust (8), thanks to the particular shape of a 'C elongated' allows the entire system to follow the trajectory solar without any limit and close in on itself in the security configuration (Figure 24).To protect the azimuthal moving system from atmospheric agents, is mounted a frame (22). On the surface of the frame, and in particular one that is illuminated by the sun during its trajectory from east to west, are applied photovoltaic elements (221), in order to provide electrical energy which will then be necessary in the feeding of used motors (Figure 1).

Secured to the upper part of the bust (8), is the beak (10) (Figure 3) within which there is whole assembly of zenithal moving system (Figure 3).

The beak (10) is formed by a bottom plate (101), which is secured to the bust (8) and which has a hole for the passage of cables and pipes. On the two sides of the bottom plate (101), are fixed, two side plates (102) and (103), which have the shape of a beak. The side plates (102) and (103), have a hole in the central part, to allow the passage of two pins (23, 24), that link the drive shaft (113) with the two arms (9a) and (9b) (Figure 9 and Figure 10)

Two holes in the top and two holes in the bottom, of the plates (102) and (103), allow the fixing of the plate (104) and the plate (105). Other holes, on the plates (102) and (103), practiced around the central hole, allow the fixing of the bearings (114). The plate (103) also presents the holes for fastening the reducer zenithal (111), to which is attached the drive shaft (113) and to which is then flanged the motor (112). A front plate (106) and a back one (107) are fixed between the plates (102) and (103). Another plate (108) is fixed between the bottom plate (101) and the two plates (102) and (103). To avoid infiltration of atmospheric agents which may in any way damaging the zenith moving system, and at the same time inspect and control it from the outside, are fixed the plates (109) and (110), made of transparent material, which effectively closed the beak (10) in the upper part, since they are fixed between the side plates (102) and (103), the upper plate (104), the front plate (106) and the back plate (107).

The two arms (9a) and (9b), as shown in Figure 10, are perfectly symmetrical and formed by an upper part (91) and a lower part (92). The upper part (91) is composed of profiles (916,917,918,919) and presents a circular plate at one end (911) to which it will latch onto the large plate (15), a central knee (912) that will lock to the mechanical of the zenithal moving system, of the lower hinges (913), at the lower ends, for the coupling with the lower parts (92), and the upper hinges (914), for the attachment of the actuator (11) and the gas spring (12) . In proximity of the bottom hinges (913) of the upper part (91), there is an eyelet (915) which will serve for the mounting of the rod (21). The lower part (92) of the arms, is composed of a profile (921) and (922), and has at the end a hinge (923). Another hinge (924) is welded almost in the middle of the profile (921) (Figure 9 and Figure 10).

The connection between the lower part (92) and the upper one (91) of the arms is done by connecting the hinge (923) with the hinge (913). With regard to the arm (9a), the connection is completed by connecting an eyelet actuator (11) to the hinge (924) and the other end to the hinge (914). With regard to the arm (9b), the connection is completed, connecting an eyelet of the gas spring (12) to the hinge (924) and the other end to the hinge (914). An end plate (93) connects the sections (922) of the two arms (9a) and (9b). This plate (93) is marked with guides on which will be connected to the box (19).

The two arms (9a) and (9b) are integral with the moving system by means of the fastening of the two pins (23) and (24). These two pins (23) and (24) are bolted to the central knee (912) (Figure 9 and Figure 10). The two pins (23) and (24) on the other end presenting an axial hole with a diameter equal to the drive shaft (113), and a groove for a feather key, which allows the connection on the transmission shaft (113) (Figure 11).

The rotation of the motor (112) therefore allows the movement of the arms (9a) and (9b) and of all that is integral to them.

At one end of the arms (9a) and (9b), in proximity of the two circular plates (911), is mounted a large plate (15) (Figure 12) consists of a dodecagonal plate (151), on the perimeter of which are bolted profiles angular (152) suitably drilled on which are fixed the parabolic segments (161), covered by reflective material, that compose the parabolic body (16) (Figure 13). These parabolic segments (161) in addition to being radially fixed to the plate (15), are anchored laterally between them, by means of bolting along the radial flaps (Figure 13 and Figure 14). A spider structure (17) stiffens the union between the various parabolic segments and between the parabolic flaps and the large plate (15) on the back of which is located a wind turbine (18) (Figure 2).

The spider structure (17) (Figure 15) is composed of components shown in Figure 16 and 17. The component shown in figure (16) is a component formed by a central profiled portion (171), which has at one end a perforated plate (172), required for the connection to the corner profiles (152) of the large plate (15); to other end, are welded two angular profiles (173) ending with a perforated plate (174) necessary for the connection with the radial flaps of the parabolic segments. The component illustrated in Figure (17), is an angular profile (175) with two perforated plates (176) welded at the end. This profile connects two flaps of the same parabolic segment (161) and the flap of the parabolic segment next. The assembly and the alternation of these components, joined with each other and with the parabolic segments at the same point, form a spider structure. Thereby it stiffens the parabolic body (16) by means of a continuous structure which is completed by effect of the rods (21) which connect the entire spider (17) to the arms (9a) and (9b) (Figure 1). This rod (21), shown in Figure 18, is formed by a circular hollow profile (211) to whose ends are welded the perforated flat plates (212). The rod (21), by means of perforated flat plates (212), is connected, on the one hand, to the hole of the parabolic segment (161), in correspondence of the plates (176) of the angular profile (175), the other to eyelet (915) formed in the upper part (91) of the arms (9a) and (9b).

At the other end of the arms, in correspondence with the guides of the plate (93), a box is fixed (19). This box, can slide in the guides in order to change its position respect to focus. This box is formed by a removable back wall (191), bolted to a quadrangular frame (192). Within the same, is bolted a framework (193) made of angled profiles, on which lies a copper spiral serpentine (194). Four small supports (195) are bolted to the framework (193) and to the walls of the quadrangular frame (192), in order to avoid that during the handling the coil (193) can move. In this way the coil is always located between the frame (193) and the small supports (195). The space between the back wall (191) and the framework (193), is filled with insulating material (196) (Figure 19, Figure 20). The coil (194), as mentioned, is a copper tube wound on itself in a spiral shape, where fluid enters and exits through pipes that connect the ends of the spiral and that pass from the holes on the side walls of the quadrangular frame (192) (Figure 19).

On the back of the box (19) is fixed a photovoltaic panel (20), whose inclination is adjustable (Figure 1 and Figure 3).

A photodiode, detects at every instant the position of the sun and via an electronic board provides the input to the azimuthal (4) and zenithal (112) motors, allowing the system to track the sun and to position themselves in an appropriate way in order to collect all the rays reflected from the parabolic body (16) exactly in the focus, where there is the coil (193). A further adjustment of centering, is obtained, intervening electronically on the actuator (11) (Figure 21).

During the entire process of tracking, the fluidis passed through the coil (193). A flowmeter registers the exact flow. The inlet fluid to the coil (193), presents a rather low temperature. The outlet fluid from the coil after the thermal exchange occurred between the same and the concentrated heat, results to be much hotter. This fluid, is conveyed into a storage tank. Through a valve, the user may at any time get out the hot water from the storage tank. A sensor detects the temperature present on the coil (193) and provides the input to the actuator (11), which according to the temperature desired, proceed to adjust the focus, retreating or elongating. This adjustment does not cause any problems in terms of abnormal focalizations, focalizations in points not properly defined, problems for air traffic, blindness, fire, damage to property or persons. In fact, in the case in which the actuator (11) is retracted, the rays reflected from the parabolic body (16), still strike the coil (193) and in particular in its lower part (Figure 22), while in the case where the actuator (11) is elongated, the rays reflected from the parabolic body (16), still strike the coil (193), this time in its upper part (Figure 23).

The fluid temperature also may be further adjusted intervening on the flow of the same and whose precise value is determined with the aid of the flowmeter.

Another temperature sensor is placed on the back of the photovoltaic panel (20) in order to monitor the temperature reached by the same and optimize its performance. In the evening twilight sensor provides the input to electronics controlling the azimuthal (4) and zenithal (112) motors, and the actuator (11) and allows the system to take the security configuration (Figure 24).

Similarly, when the wind speed exceeds a certain threshold, an anemometer provides the input to electronics that sets in motion the azimuth (4) and zenith (112) motors and the actuator (11), so as to set system the security configuration (Figure 24).

The configuration of security, consists in bringing the system to the configuration cycle start. Therefore, the azimuth motor (4) ensures that the system turns to the east and stops due to input data to a limit switch. During this phase the zenithal motor (112) sets in rotation the arms (9a) and (9b), by turning the concavity of the parabolic body (16) downwards. Even here the stop of the zenithal movement is controlled by a limit switch. When the concavity of the parabolic body (16) is almost totally facing downwards, before the limit switch do finish rotating zenithal, the actuator (11) retracts. The shortening of the actuator (11) is managed by a position sensor which manages the distance between the box (19) and the bust (8) in order to avoid collision between the two elements in the closure phase. At the end of the safety procedure, the body axis parabolic (16), is perpendicular to the ground.

In the security configuration, due to the action of the wind, comes into operation the wind turbine (18). In this configuration, in fact the axis of the wind turbine (18) is perpendicular to the wind direction. This allows you to continue to generate electricity and use the power of the wind that would otherwise be lost. A sensor detects at all times the speed of the wind and when this exceeds a certain threshold, the turbine, for safety reasons, is turned off, continuing to spin without producing energy.

The electrical energy produced by the wind turbine (18), together with that produced by the photovoltaic elements (221) positioned on the frame (22) and from the photovoltaic panel (20), is accumulated and used for feed the moving systems of the solar concentrator. In this way the system is completely autonomous and self-powered from the electrical point of view. In fact, the energy produced by the photovoltaic panel (20), by the wind turbine (18), and by the photovoltaic elements (221) arranged on the frame (22), is stored in an electric accumulator (battery) to which are connected the azimuth motor (4), zenith motor (112) and the actuator (11).

The security configuration allows the protection, from atmospheric agents, of the reflecting surface and the cleaning of the same.

The security configuration allows any maintenance work on the box (19) and its internal components, as well as on the photovoltaic panel (20), which in this configuration are easily accessible because shortly distant from the ground.

The security configuration opposes little resistance to wind, because the impacting area (S) results to be reduced (Figure 24). This means that it becomes much easier to ensure the system to tipping due to the action of the wind.

Claims

1. Parabolic system, characterized by the integration and combination, on the same bust, of multiple sources of renewable energy to convert solar energy and wind energy to produce electricity and heat and consists of:

• A rotating azimuth bust of an appropriate form;

• A 'beak-shaped' structure, attached to the upper part of the bust, which contains the zenithal moving system;

• Two arms, connected to the zenithal moving system and able to rotate zenithally;

• An actuator and a gas spring connecting the upper and lower arms;

• A parabolic body composed by parabolic reflector segments;

• A spider structure located on the back of the parabolic body;

• A wind turbine on the back of a large plate that connects the parabolic body at one end of the arms;

• A heat exchanger linked on the other end of the arms opposite to the parabolic body, that receives the parabolic solar energy reflected from the parabolic body;

• A photovoltaic panel located on the back of the heat exchanger;

• A series of photovoltaic strips arranged on a frame that covers the azimuth moving system;

2. Parabolic system according to claim 1, wherein the bust, which can rotate azimuthally, has a C-shape or S-shaped.

3. Parabolic system according to claim 1, wherein the beak-shaped structure exactly reproduces the beak of a bird, and contains within it the entire zenithal moving system.

4. Parabolic system according to claim 1, wherein the two arms are composed of an upper and a lower part, and are connected directly to the crankshaft of the zenithal moving system and thus can rotate zenithally.

5. Parabolic system according to claim 1, wherein an actuator connects the bottom and the top of an arm, and a gas spring connects the bottom and the top of the other arm.

6. Parabolic system according to claim 1, wherein a spider structure on the back of the parabolic body is connected to the parabolic segments and to the central plate, which in turn is bound to one end of the arms.

7. Parabolic system according to claim 1, wherein a wind turbine is positioned on the back of the plate that is attached to the end of the arms, so that its axis of rotation is coaxial to the axis of the parabolic body.

8. Parabolic system according to claim 1, wherein a solar panel is positioned on the back of the heat exchanger, which is located on the axis of the parabolic body at a precise distance from it, and moves jointly with it.

9. Parabolic system according to claim 1, wherein a series of photovoltaic strips are placed on a frame that covers the azimuthal moving system.

10. Parabolic system according to claim 2, wherein the shape of the bust allows the system to rotate overhead to turn the concave parabolic body down or up, so that the axis of the parabolic body is perpendicular to the ground, avoiding collisions between the parts of the system.