WO2011095996A2

WO2011095996A2 - Paraboloidal solar concentrator

Info

Publication number: WO2011095996A2
Application number: PCT/IN2011/000083
Authority: WO
Inventors: Ajay Girdharilal Chandak; Vishal Renukadas Sardeshpande; Indu Rajesh Keoti
Original assignee: A.T.E. Enterprises Private Limited
Priority date: 2010-02-08
Filing date: 2011-02-04
Publication date: 2011-08-11
Also published as: WO2011095996A3

Abstract

A paraboloidal solar concentrator includes a plurality of parabolic support structures which are designed based on a geometric equation of a parabolic curve. The plurality of parabolic support structures are assembled to obtain paraboloidal dish shape of the paraboloidal solar concentrator. The plurality of the parabolic support structures are assembled with a plurality of reflector holding sections to hold a plurality of reflectors to form the paraboloidal solar concentrator.

Description

PARABOLOIDAL SOLAR CONCENTRATOR

FIELD OF INVENTION

[0001] The invention generally relates to a paraboloidal solar concentrator. More specifically, the invention relates to a paraboloidal solar concentrator with a plurality of parabolic support structures.

BACKGROUND OF THE INVENTION [0002] Solar concentrators are used for collection and utilization of solar energy. Solar concentrators with a paraboloidal geometry are widely used, as the paraboloidal dish shape of a solar concentrator enables efficient collection of solar rays around a focal point of the paraboloidal dish shape. The solar concentrators with paraboloidal . geometry provide point focus of the solar energy incident on the paraboloidal dish. Thus, loss of the solar energy due to geometrical limitations during collection is minimized.

[0003] The solar concentrators with the paraboloidal geometry generally include various constructional members, such as support structures, reflectors, rotating unit, tracking unit and mounting stand. Manufacturing of these constructional members for large solar concentrators is costly as high precision is required. Additionally, support structures utilized for constructing a paraboloidal dish shape are designed based on different geometrical designs. For example, FIG. 1 illustrates an arrangement of ring shaped, support structures, such as support structures 102-n of a solar concentrator in accordance with a prior-art. Each support structure is designed with a different geometry. For example, support structure 102-1 has geometry different from the geometry of support structure 102-2. Therefore, for different geometries of the support structures, multiple jigs are required for manufacturing of the support structures. Stacking and transportation of such support structures is also difficult. Moreover, assembly of the support structures to form the paraboloidal dish shape of the solar concentrator requires high precision, as each support structure is maintained at a given height to obtain the paraboloidal dish shape. Any error in the paraboloidal dish shape may alter a focal length of the solar concentrator. Thus, skilled artisans are required to assemble these support structures of the solar concentrator. All of these factors increase the cost of the solar concentrator.

[0004] There is therefore a need for a paraboloidal solar concentrator which includes constructional members which are easily manufactured and assembled. Further, there is need of a paraboloidal solar concentrator which provides efficient collection of the solar energy in a cost effective manner.

BRIEF DESCRIPTION OF THE FIGURES

[0005] The accompanying figures where like reference numerals refer to identical or functionally similar elements throughout the separate views and which together with the detailed description below are incorporated in and form part of the specification, serve to further illustrate various embodiments and to explain various principles and advantages all in accordance with the invention.

[0006] FIG. 1 illustrates an arrangement of a plurality of support structures in accordance with an embodiment of a prior art.

[0007] FIG. 2 illustrates a paraboloidal solar concentrator in accordance with an embodiment of the invention. [0008] FIG. 3 A illustrates a paraboloidal grid of the paraboloidal solar concentrator in accordance with an embodiment of the invention.

[0009] FIG. 3B illustrates a paraboloidal grid of the paraboloidal solar concentrator in accordance with another embodiment of the invention. [0010] FIG. 4A illustrate a plan view of a paraboloidal grid in accordance with an exemplary embodiment of the invention.

[0011] FIG. 4B illustrate a plan view of a paraboloidal grid in accordance with another exemplary embodiment of the invention.

[0012] FIG. 4C illustrate a plan view of a paraboloidal grid in accordance with yet another exemplary embodiment of the invention. [0013] FIG. 5 A illustrates a reflector holding section in accordance with an embodiment of the invention.

[0014] FIG. 5B illustrates an assembly of a plurality of reflector holding sections with a plurality of reflectors over the paraboloidal grid of the paraboloidal solar concentrator in accordance with an embodiment of the invention.

DETAILED DESCRIPTION

[0015] Before describing in detail embodiments that are in accordance with the invention, it should be observed that the embodiments reside primarily in combinations of apparatus components related to paraboloidal solar concentrator. Accordingly, the apparatus components have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.

[0016] As required, detailed embodiments of the invention are disclosed herein;

however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the invention in virtually any appropriately detailed structure. Further, the terms and phrases used herein are not intended to be limiting but rather to provide an understandable description of the invention.

[0017] The terms "first," "second," "top", "bottom" and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, and the terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. The term plurality, as used herein, is defined as two or more than two. The term another, as used herein, is defined as at least a second or more. The terms including and/or having, as used herein, are defined as comprising (i.e., open language). The term coupled, as used herein, is defined as connected, although not necessarily directly, and not necessarily mechanically.

[0018] Various embodiments of the invention provide a paraboloidal solar concentrator. The paraboloidal solar concentrator includes multiple parabolic support structures which are designed based on a geometric equation of a parabolic curve. The parabolic support structures are assembled to obtain a paraboloidal dish shape of the paraboloidal solar concentrator. These parabolic support structures mount multiple reflector holding sections which hold multiple reflectors to form the paraboloidal solar concentrator.

[0019] FIG. 2 illustrates a paraboloidal solar concentrator 200 in accordance with an embodiment of the invention. Paraboloidal solar concentrator 200 is constructed by arranging various constructional members. Paraboloidal solar concentrator 200. includes a paraboloidal grid 202. Paraboloidal grid 202 is designed to obtain a paraboloidal dish shape of the paraboloidal solar concentrator. Paraboloidal grid 202 is further explained in detail in conjunction with FIG. 3A and 3B. [0020] Paraboloidal solar concentrator 200 further includes a rotary unit 204. Rotary unit 204 mounts paraboloidal grid 202 and enables rotation of paraboloidal grid 202. In an embodiment of the invention, rotary unit 204 includes a shaft which is connected to paraboloidal grid 202 at one end. The shaft enables rotation of paraboloidal grid 202 along an axis parallel to the Earth's axis. A direction axis of the shaft may be in north- south direction at an angle equal to a latitude angle of a geographic location, where paraboloidal solar concentrator 200 is placed. Rotation of the shaft is controlled by a tracking mechanism. Various known tracking mechanisms may be used for controlling the rotation of the shaft.

[0021] Rotary unit 204 further includes a plurality of rotary arms, which are coupled with paraboloidal grid 202 at one end. Other ends of the plurality of rotary arms which are opposite to paraboloidal grid 202 are connected with the shaft by a rotary joint. The plurality of rotary arms enable angular movement of paraboloidal solar concentrator 200 during day and night and also during various seasons. Weight of paraboloidal grid 202 is balanced by a balancing weight 206. Balancing weight 206 may be connected with the shaft of rotary unit 204. Paraboloidal grid 202, rotary unit 204, and balancing weight 206 are mounted on a stand 208 which is a stationary supporting unit vertically placed on ground.

[0022] Paraboloidal solar concentrator 200 also includes a plurality of reflectors (not shown in FIG. 2) which are supported by paraboloidal grid 202. The plurality of reflectors are arranged over paraboloidal grid 202, such that, the plurality of reflectors obtain the paraboloidal dish shape of paraboloidal solar concentrator 200. The plurality of reflectors reflect the solar rays at a focal point of the paraboloidal dish shape. A receiver 210 is installed at the focal point to collect and utilize the solar energy from the reflected solar rays. Examples of receiver 210 may include, but are not limited to a thermal heat exchanger, photovoltaic cells and an external combustion engine. [0023] In an exemplary embodiment, the plurality of reflectors are sheets prepared from reflecting materials, such as glass, sheet metal, acrylic, and silver foil. Further, different shapes, such as square, rectangular, triangular, and trapezoidal may be used for designing the plurality of reflectors. In an embodiment, a flexible sheet material may be used to prepare the plurality of reflectors, such that, the plurality of reflectors may be bent based on the paraboloidal dish shape of paraboloidal solar concentrator 200. In another embodiment, a rigid material may be used to prepare the plurality of reflectors.

Geometric profile of the plurality of reflectors may be straight or curved. [0024] FIG. 3 A illustrates paraboloidal grid 202 of paraboloidal solar concentrator 200 in accordance with an embodiment of the invention. Paraboloidal grid 202 is a mesh of a plurality of parabolic support structures 302-n. Examples of a parabolic support structure include, but are not limited to a rod, a pipe, a bar, a tube, a truss, and a channel. Various materials may be used for manufacturing of plurality of paraboloidal support structures 302-n. Examples of the materials include, but are not limited to aluminum, poly vinyl chloride (PVC), and fiber reinforced plastic, extruded aluminum, fabricated steel, ferrous metals, non-ferrous metals, alloys, polymer, and composite materials. Plurality of parabolic support structures 302-n may be manufactured by using hollow structures or solid structures. In an embodiment a parabolic support structure is a hollow pipe, with a square or a rectangular cross section. As the parabolic support structure is a hollow pipe, overall weight of the parabolic support structure is reduced. Further, simple

manufacturing methods are required for designing a square or a rectangular cross-section - of the parabolic support structure. Thus, overall cost of manufacturing of the parabolic support structure is reduced.

[0025] Geometric profile of plurality of parabolic support structures 302-n is designed based on an equation of a parabolic curve. A general equation of the parabolic curve is given below:

Where,

X and Y are perpendicular axis in a plane,

f is a focal length of the parabolic curve. [0026] Geometric profile of a parabolic support structure follows the equation 1. In an embodiment, geometric profile of each parabolic support structure of plurality of parabolic support structures 302-n is based on an equation of a parabolic curve. As plurality of parabolic support structures 302-n are designed based on geometry of the same parabolic curve, each of plurality of parabolic support structures 302-n may be manufactured using a single jig. For example, parabolic support structure 302-1 and parabolic support structure 302-2 may be manufactured using one jig owing to their same geometric profile. Utilization of one jig for manufacturing of each of plurality of parabolic support structures 302-n results in easy and cost effective manufacturing of plurality of parabolic support structures 302-n. Further, plurality of parabolic support structures 302-n can be stacked together in one stack. Therefore, transportation of plurality of support structures 302-n is easy.

[0027] Thereafter, plurality of parabolic support structures 302-n are assembled to form paraboloidal grid 202. Plurality of parabolic support structures 302-n are fixedly attached by using one or more joining techniques, such as clamping, wielding, riveting, and clinching. It will be apparent to a person skilled in the art that other joining techniques may be used for attaching plurality of parabolic support structures 302-n. The total number of parabolic support structures 302-n required to for paraboloidal grid 202 depends on a geometrical shape to be obtained for paraboloidal grid 202 in the plan view. The total number of parabolic support structures 302-n may further depend on rigidity required for paraboloidal grid 202.

[0028] In order to obtain different geometrical shapes of paraboloidal grid 202 in a plan view, plurality of parabolic support structures 302-n may be arranged in different manner to obtain a geometrical shape in a plan view. Examples of the geometrical shapes include, but are not limited to a square shape, a rectangular shape, a trapezoidal shape, a triangular shape, a circular shape, and an elliptical shape. Various arrangements of plurality of ^■ parabolic support structures 302-n may be used to obtain different shapes of paraboloidal grid 202 in the plan view. Exemplary geometrical shapes of paraboloidal grid 202 in a plan view with exemplary arrangement of plurality of parabolic support structures 302-n are explained in detail in conjunction with FIG. 4 A and 4B.

[0029] In an embodiment, plurality of parabolic support structures 302-n may also include a plurality of structural members to provide strength to paraboloidal grid 202. The plurality of structural members are explained in detail in conjunction with FIG. 3B.

[0030] As specified in conjunction with FIG. 2, the plurality of reflectors are supported by paraboloidal grid 202 using a plurality of reflector holding sections. The plurality of reflector holding sections are clamped on paraboloidal grid 202. The plurality of reflectors are inserted in a sliding manner in the plurality of reflector holding sections. Arrangement of the plurality of reflectors with the plurality of reflector holding sections is explained in detail in conjunction with FIG. 5.

[0031] FIG. 3B illustrates a paraboloidal grid 300 in accordance with an embodiment of the invention. Paraboloidal grid 300 includes a plurality of parabolic support structures 304-n. Plurality of parabolic support structures 304-n includes a plurality of structural members 306-n. Examples of plurality of structural members 306-n include, but are not limited to trusses, beams, and bars. As shown in FIG. 3B, parabolic support structure 304-1 includes structural member 306-1. Similarly, parabolic support structure 304-2 includes structural member 306-2.

[0032] Plurality of structural members 306-n are provided at bottom of one or more parabolic support structures to impart additional strength to paraboloidal grid 300. In an embodiment, a parabolic support structure is designed with a structural member integrated with the parabolic support structure. Alternately, a structural member is attached with a parabolic support structure by using a joining technique, such as clamping, wielding, riveting, and clinching.

[0033] FIG. 4A illustrates a plan view of a paraboloidal grid 402 in accordance with an exemplary embodiment of the invention. Paraboloidal grid 402 includes a plurality of parabolic support structures, such as parabolic support structures 404a-n and parabolic support structures 404b-n. Each of the plurality of parabolic support structures are designed with same length. As shown in FIG. 4A, parabolic support structures 404a-n are placed in parallel along a horizontal direction of paraboloidal grid 402. A fixed gap is maintained between parabolic support structures 404a-n. Similarly, parabolic support structures 404b-n are placed in parallel along a vertical direction of paraboloidal grid 402. Further, parabolic support structures 404a-n are orthogonally placed to parabolic support structures 404b-n. Based on this assembly of the plurality of parabolic support structures, paraboloidal grid 402 obtains a square shape in the plan view. Circle 406 around paraboloidal grid 402 depicts a plan view of an outer profile of a paraboloidal shape obtained by paraboloidal grid 402.

[0034] As a paraboloidal solar concentrator is constructed by utilizing paraboloidal grid 402, square shape of paraboloidal solar concentrator in a plan view enables efficient utilization of ground area. In comparison to other shapes, square shape of the

paraboloidal solar concentrator provides maximum coverage area for collection of the solar rays. For example, a square shape has a total area which is about 22% more than that of a circle having diameter equal to a side of the square. Thus, area coverage of a paraboloidal solar concentrator having a circular shape in the plan view is lesser than area coverage of the paraboloidal solar concentrator having square shape in the plan view. Thus, more solar energy per square meter of ground area used is collected by the paraboloidal solar concentrator with square shape.

[0035] FIG. 4B illustrates a plan view of a paraboloidal grid 408 in accordance with another exemplary embodiment of the invention. Paraboloidal grid 408 includes a plurality of parabolic support structures, such as parabolic support structures 410a-n and parabolic support structures 410b-n. The plurality of parabolic support structures are designed with variable lengths. As shown in FIG. 4B, parabolic support structures 410a-n are arranged adjacently along one direction of paraboloidal grid 408. To complete the trapezoidal shape of paraboloidal grid 408, parabolic support structures 410b-n are arranged in parallel, as shown in FIG 4B. Based on this assembly of the plurality of parabolic support structures, paraboloidal grid 408 obtains a trapezoidal shape in the plan view. [0036] FIG. 4C illustrates a plan view of a paraboloidal grid 412 in accordance with yet another exemplary embodiment of the invention. The plurality of parabolic support structures are arranged in a manner to obtain a geometrical shape as triangular in the plan view. [0037] Moving on to FIG. 5 A that illustrates a reflector holding section 502-1 in accordance with an embodiment of the invention. Reflector holding section 502-1 is designed to hold a reflector on paraboloidal grid 202. Reflector holding section 502-1 includes a T shaped section 502-la, and a clamping section 502-lb. Clamping section 502-lb facilitates clamping of reflector holding section 502-1 over paraboloidal grid 202. In an embodiment, clamping section 502-lb may be designed as a C shaped section or a dovetail shaped section.

[0038] Reflector holding section 502-1 is designed such that, T shaped section 502-la is integrated on top of clamping section 502-lb. Based on the design of reflector holding section 502-1, a groove track is obtained on either sides of web of T shaped section 502- la. In an embodiment, if clamping section 502-lb is a C shaped section, T shaped section 502-la is mounted on back of C shaped section. Thus, a groove track is obtained on either sides of web of T shaped section 502-la and between flange of T shaped section 502-la and back of C shaped section. Similarly, a groove track on either side of web of T shaped section 502-la is obtained; if T shaped section 502-la is mounted on back of clamping section 502- lb with a dovetail shape. The groove track is utilized for inserting an edge of the reflector in reflector holding section 502-1.

[0039] FIG. 5B illustrates a section 500 depicting.an assembly of plurality of reflector holding sections 502-n with paraboloidal grid 202 to hold plurality of reflectors 504-n in accordance with an embodiment of the invention. Plurality of reflector holding sections 502-n are clamped above a set of parabolic support structures of plurality of parabolic support structures 202 -n in order to place plurality of reflector holding sections 502-n over paraboloidal grid 202. For example, plurality of reflector holding sections 502-n may be placed above a set of parabolic support structures which are placed adjacently to form paraboloidal grid 202. It will be apparent to a person skilled in art, that any joining techniques may be used for clamping plurality of reflector holding sections 502-n with the set of parabolic support structures. [0040] Each reflector holing section of plurality of reflector holding sections 502-n is placed on the set of parabolic support structures such that a reflector holding section spreads from one edge of paraboloidal grid 202 to an opposite edge of paraboloidal grid 202. Further, the reflector holding section is manufactured using a ductile material, so that, the reflector holding section obtains geometry of paraboloidal grid 202. Examples of the ductile material include, but are not limited to aluminum, copper, PVC, fiber reinforced plastic, ferrous and non-ferrous alloys. As the reflector holding section is placed above paraboloidal grid 202, length of the reflector holding section may depend on the geometry of paraboloidal grid 202. For example, length of the reflector holding section may be equal to a curved length of the paraboloidal dish shape obtained by paraboloidal grid 202.

[0041] Plurality of reflector holding sections 502-n are arranged in parallel above the set of parabolic support structures by maintaining fixed or variable gaps between each of plurality of reflector holding sections 502-n. The gaps facilitate insertion of plurality of reflectors 504-n into plurality of reflector holding sections 502-n. A reflector of plurality of reflectors 504-n is inserted in a sliding manner in T shaped sections of two adjacently placed reflector holding sections of plurality of reflector holding sections 502-n. The reflector is inserted such that, an edge of the reflector is inserted in a groove track of a first reflector holding section and an opposite edge is inserted in a groove track of a second reflector holding section, which is adjacently placed to the first reflector holding section. Thus, the gaps maintained between adjacently placed plurality of reflector holding sections 502-n, depend on length of plurality of reflectors 504-n.

[0042] As plurality of reflectors 504-n are inserted in groove track of plurality of reflector holding section 502-n, height of the groove track is based on dimensions of an edge of a reflector inserted in the groove track and a focal length of paraboloidal solar concentrator 200. Height of the groove track is maintained greater than thickness of the reflector to facilitate sliding of the reflector into the groove track. Further, height of the groove track is also based on a length of the edge of the reflector, which is inserted in the groove track.

[0043] Design of plurality of reflector holding sections 502-n facilitates usage of reflectors with straight profile as well as, reflectors with curved profile. Although, a focal point of a straight reflector is at infinity, the plurality of reflectors 504-n are arranged above paraboloidal grid 202 to reflect solar rays at a focal point of the paraboloidal dish shape of paraboloidal grid 202. Usage of straight reflectors enables minimization of cost involved in treatment of the reflectors to obtain curved profile. Further, design of plurality of reflector holding sections 502-n facilitates usage of plurality of reflectors 404-n which are prepared from flexible sheets. A reflector of plurality of reflector holding section 404-n may be a rectangular strip of a flexible sheet. As the reflector is inserted in groove track of two adjacently placed reflector holding sections of plurality of reflector holding section 502-n, the reflector obtains shape of paraboloidal grid 202. Length of the reflector is based on length of the two reflector holding sections.

Manufacturing of the reflector from flexible sheets is economical and such reflectors can be easily inserted in groove track of a reflector holding section. [0044] Various embodiments of the invention provide a paraboloidal solar concentrator with multiple parabolic support structures. As, the paraboloic support structures are designed based on geometric equation of same parabolic curve, the parabolic support structures can be manufactured using one jig. Thus, a cost of manufacturing of the parabolic support structures is reduced. Transportation and stacking of the parabolic support structures also becomes easy. Moreover, the parabolic support structures are interchangeable. Thus, assembly of the parabolic support structures to form the paraboloidal solar concentrator does not require skilled artisans. Further, in case of any accidents at site of the paraboloidal solar concentrator, damages may be easily repaired. The parabolic support structures couple with a multiple reflector holding sections to hold multiple reflectors. The design of the reflector holding sections facilitate usage of glass reflectors with straight surface profile. Thus, manufacturing cost involved in treatment of reflectors to change the profile is reduced. Overall, the arrangement of the paraboloidal solar concentrator enables efficient collection of the solar energy in a cost effective manner.

[0045] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present invention and its practical application, and to thereby enable others skilled in the art to best utilize the present invention and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but these are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present invention [0046] In the foregoing specification, specific embodiments of the present invention have been described. However, one of ordinary skill in the art appreciates that various modifications and changes can be made without departing from the scope of the present invention as set forth in the claims below. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the. scope of the present invention. The benefits, advantages, solutions to problems, and any element(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential features or elements of any or all the claims. The present invention is defined solely by the appended claims including any amendments made during the pendency of this application and all equivalents of those claims as issued.

Claims

CLAIMS What is claimed is:

1. A paraboloidal solar concentrator comprising:

a plurality of parabolic support structures, each of the plurality of parabolic support structures being designed based on an equation of a

predetermined parabolic curve, wherein the plurality of parabolic support structures are assembled to obtain a paraboloidal dish shape;

a plurality of reflectors;

a plurality of reflector holding sections, wherein the plurality of reflectors are inserted in a sliding manner in the plurality of reflector holding sections, whereby, the plurality of reflector holding sections and the plurality of parabolic support structures are assembled together to hold the plurality of reflectors to form the paraboloidal solar concentrator.

2. The paraboloidal solar concentrator of claim 1 , wherein each of the plurality of parabolic support structures is manufactured using a single jig.

3. The paraboloidal solar concentrator of claim 1, wherein the plurality of parabolic support structures are assembled by arranging the plurality of parabolic support structures to form a paraboloidal grid, wherein the paraboloidal grid obtains a prefixed geometrical shape in a plan view.

4. The paraboloidal solar concentrator of claim 4, wherein in the pre-fixed

geometrical shape is one of a square shape, rectangular shape, trapezoidal shape, circular shape and triangular shape.

5. The paraboloidal solar concentrator of claim 4, wherein the plurality of reflector holding sections are clamped over a set of parabolic support structures, wherein each of the plurality of reflector holding sections are arranged in parallel.

6. The paraboloidal solar concentrator of claim 4 further comprises a tracking unit for rotating the paraboloidal grid.

7. The paraboloidal solar concentrator of claim 1 , wherein the paraboloidal dish shape is symmetrical about a north-south axis passing through the center of the paraboloidal shape.

8. The paraboloidal solar concentrator of claim 1 , wherein a reflector of the plurality of reflectors is a rigid straight reflector.

9. The paraboloidal solar concentrator of claim 1, wherein a reflector of the plurality of reflectors is a flexible reflector, wherein length of the reflector is based on length of a curve length of the paraboloidal dish shape.

10. The paraboloidal solar concentrator of claim 1, wherein a reflector holding section of the plurality of reflector holding sections comprises:

a T shaped section wherein the T shaped section is designed to form a groove track on either sides of a web of the T shaped section, wherein a reflector of the plurality of reflectors is inserted in a sliding manner in the groove track; and

a clamping section, wherein the T shaped section is integrated on top of the clamping section, the clamping section is fixedly attached to a parabolic support structure of the plurality of parabolic support structures.

11. The paraboloidal solar concentrator of claim 10, wherein the clamping section is a C shaped section.

12. The paraboloidal solar concentrator of claim 10, wherein height of the. groove track is based on dimensions of an edge of a reflector inserted in the groove track and a focal length of the paraboloidal solar concentrator.

13. The paraboloidal solar concentrator of claim 12, wherein the height of the groove track and a thickness of a reflector of the plurality of reflectors differ by a predetermined value.

14. The paraboloidal solar concentrator of claim 10, wherein a first edge of a reflector of the plurality of reflectors is inserted in sliding manner in a groove track of a first reflector holding section, wherein a second edge of the reflector is inserted in sliding manner in a groove track of a second reflector holding section, wherein the first edge of the reflector is opposite to.the second edge of the reflector, wherein the first reflector holding section is adjacently aligned to the second reflector holding section.