WO2010114501A2

WO2010114501A2 - A system absorbing solar energy by concentration

Info

Publication number: WO2010114501A2
Application number: PCT/TR2010/000057
Authority: WO
Inventors: Mustafa Gunay
Original assignee: Mustafa Gunay
Priority date: 2009-04-01
Filing date: 2010-03-29
Publication date: 2010-10-07
Also published as: WO2010114501A3; TR200902537A2

Abstract

The invention relates to absorption by means of solar energy concentration. The invention particularly relates to a solar energy concentration and absorption system developed in order to provide concentration and absorption of direct and reflected solar radiation coming from all directions and different angles in open areas. The absorption means comprise a shell containing an external surface transmissive to solar radiation and an internal surface coated with a reflective agent. The absorption means further comprise an energy absorber located in the inner space of said shell.

Description

A SYSTEM ABSORBING SOLAR ENERGY BY CONCENTRATION

The Related Art

The invention relates to absorption of solar energy by concentration.

The present invention relates to a solar energy concentration and absorption system consisting of a shell penetrating solar rays, of which internal surface is coated by reflective agent, and an energy absorber located inside the said shell, which has been developed to provide absorption by concentration of solar rays coming from different angles.

Background of the Related Art

The human beings have tried to obtain energy by use of various sources for many years. Depletion of liquid fuel-oil and solid fuel resources used frequently today has led the mankind to seek different energy resources. While finding alternative energy resources, it is also necessary that the discovered energy resources should be environment-friendly resource not damaging nature, which has led to commence of solar energy use and obtaining clean energy not damaging nature as a result of seeking alternative energy resources.

The known solar energy absorbing systems generate maximum energy when located perpendicular to sun rays. Therefore, while the angle of the sun to the absorbing system varies during day-time, additional systems are needed to maximize the energy to be generated. Systems following the sun or optic (for instance mirror, optics) systems are used for this purpose. However, such systems require additional costs and/or consume energy. From those principles, several views and systems have been developed. Some of them have been given below.

National utility model application numbered 2007/00862 relates to sun collector. The invention relates to solar collectors converting the solar energy into usable energy for the purpose of heating locations such as buildings consisting of houses, flats and business centers. The invention particularly relates to a collector feet fixing the said collector and preventing damage caused by external factors, collector body serving as cylindrical optics and collecting the sun rays and concentrating them in the desired area, angular pipe housings located on the said collector body and collecting the sun rays, pipes carrying the flowing fluid and located in the said pipe housing and supporting branches keeping the said pipes from housing at a certain distance, thus providing contact of all surface of the said pipes with the sun rays.

Another application about the subject is the European patent application numbered EP1290383B1 and entitled concentrating solar energy system. Concentrating solar energy system with a reflector which has a particularly reflecting inner side, which is realized as a parabolic mirror with two axis steering, which is carried by a base frame arranged in a support plane and which has a receiver which is arranged in operation at, in front of or after the focal point of the parabolic mirror, wherein the parabolic mirror is moreover rotatable about an axis arranged at least substantially perpendicular to the support plane, wherein the parabolic mirror is pivotable upwardly and downwardly about a lower pivot axis arranged in the region of the support plane or at a spacing above or below it, wherein the pivotal movement of the parabolic mirror is assisted by at least one link arm which is hinged at one end in the middle region of the parabolic mirror and at the other end to the base frame, wherein this pivot axis is displaceable arranged in a plane parallel to the support plane or in the support plane and the displacement of the pivot axis leads or contributes to the corresponding pivotal movement of the parabolic mirror.

Another European patent application numbered EP1826505B1 discloses solar collector with concentration. The invention relates to solar collector with concentration and consists of the followings: a cover penetrating sun rays, a reflector with cylindrical parabolic section, the cover and reflector defines a volume, and a heat transmission member, and it is characterized in that it consists of a transformer providing reduction of energy loss arising from spreading force, that this transformer is coated with an agent of high heat insulation, that the transformer absorbs a part of sun rays and distributes heat into the volume again and the transformer does not contact heat transfer member. National utility model numbered 2007/00279 discloses a horizontal solar collector having coiled panel with horizontal carrying pipe. The invention relates to water heaters operated by solar energy. Coiled panel is provided by means of horizontal welding copper or selective surfaced copper absorber plates to the horizontal copper carrying pipes located in the plane solar collector manufactured horizontally, by means of ultrasound method and combination of horizontal pipes to each other by means of U pipes.

Another patent application is the American patent entitled solar collector and numbered US 4,287,880. The invention relates to a stationary solar heat collector and it includes a reflector having a substantially upwardly facing concave reflective surface and an absorber tube supported relative to the reflective surface for receiving reflected sunrays there from. The reflective surface is defined in cross- section by first, second and third semi-parabolic curves arranged in generally end- to-end relation, thereby to define a generally C-shape.

As a result, the need for solar energy concentration and absorption system consisting of a shell penetrating solar rays, of which internal surface has a reflective agent, and an energy absorber located in the said shell, which has been developed to provide concentration and absorption of solar rays coming from different angles differing from the embodiments existing in the related art, eliminating the disadvantages available in the related art and inadequacy of existing solutions have necessitated development in the related art.

Purpose of the Invention

From the status of the related art, the purpose of the invention is to develop a solar energy concentration and absorption system consisting of a shell penetrating solar rays, of which internal surface has a reflective agent, and an energy absorber located in the said shell, which has been developed to provide concentration and absorption of solar rays coming from different angles, which is different from the above described negative status. Another purpose of the invention is to develop a solar energy concentration and absorption system which provides absorption by means of concentration of not only sun rays but also the rays reflected from the environmental surfaces such as sea, lake, pool, glass and other similar surfaces.

A further purpose of the invention is to develop a solar energy concentration and absorption system which is of structure in the form of one of the enclosed circular surfaces such as cylinder, sphere, and ellipse in order to absorb the sun rays coming from every direction more and thus is capable to generate much more energy with less movement.

Another purpose of the invention is to develop a solar energy concentration and absorption system which is considerably simple but of efficient structure and thus capable to generate energy, and of which maintenance and installation is cheap and easy.

A further purpose of the invention is to develop a solar energy concentration and absorption system of which cost is low in respect to the materials used but is capable to absorb the sun rays with the highest efficiency.

A further purpose of the invention is to develop a solar energy concentration and absorption system which absorbs sun rays at maximum level without need for any additional system because of its geometric shape and simple structure.

Another purpose of the invention is to develop a solar energy concentration and absorption system which absorbs sun energy and generates energy or performs work and can be applied to all systems intending to generate energy safer, cleaner, more secure and at lower cost.

In order to achieve the above mentioned purposes, a solar energy concentration and absorption system developed to absorb the sun rays coming from all directions in open areas receiving sun ray with less movement and more efficiency, and it consists of - a shell in the shape of closed curved surfaces comprising a) an absorber surface which is made of transparent raw materials allowing passage of light, is located on the external surface of the shell, and transmits more than 60% of the sun rays which come from outer space to the inner space and, b) a reflective surface which is made of raw materials reflecting the light, is located on internal surface of said shell, and reflects more than 60% of the sun rays which come from inner space to the inner space to the absorber via one-way mirror principle,

- an energy absorber located on the focal point of the said shell made of raw material of high heat transmission, in the form of pipe or photovoltaic electric panel containing gas or fluid agent flowing inside it.

In a preferred embodiment of the invention, said shell is in the shape of cylinder, half cylinder, sphere, half sphere, ellipse.

In a preferred embodiment of the invention, said reflective surface consists of raw materials glued in the form of fine particulates.

In a preferred embodiment of the invention, it comprises a shell capable to move as per direction of the sun.

The structural and characteristics features of the invention and all advantages will be understood better in detailed descriptions with the figures given below and with reference to the figures, and therefore, the assessment should be made taking into account the said figures and detailed explanations.

Figures to Describe the Invention

Figure 1 is a side view of a preferred embodiment of solar energy concentration and absorption system being subject of the invention.

Figure 2 is a perspective view of a preferred embodiment of solar energy concentration and absorption system being subject of the invention. Figure 3 is a perspective view of another preferred embodiment of solar energy concentration and absorption system being subject of the invention. Figure 4 is a perspective view of another preferred embodiment of solar energy concentration and absorption system above the sea being subject of the invention.

Reference Numbers

1- Solar Energy Concentration and Absorption System

2- Shell

2.1- Absorbing Surface 2.2- Reflective Surface

3- Energy Absorber

4- Environmental Surfaces

5- Sun Rays (Sun Light) 6- Sea

Detailed Description of the Invention

In this detailed description, solar energy concentration and absorption system (1) being subject of this invention has been disclosed solely for the purpose of better understanding of the subject and described in a manner not causing any restrictive effect.

Figure 1 is a side view of a preferred embodiment of solar energy concentration and absorption system (1) being subject of the invention. According to the figure, the sun rays (5) coming directly from the sun or environmental surfaces (4) such as sea, lake, pool, glass and other similar surfaces to the solar energy concentration and absorption system (1) pass through the absorbing surface (2.1) located on external side of the shell (2) easily and reach the reflective surface (2.2) located on internal side of the shell (2). The said absorbing surface (2.1) is made of transparent raw materials. This surface (2.1) transmits more than 60% of the sun rays (5) which come from exterior side.

The reflective surface (2.2) is made by gluing of shining and light reflecting agents such as silver, aluminum and similar materials in the form of fine particulates. This surface (2.2) located on internal surface of said shell (2) reflects more than 60% of the sun rays (5) which come from inner space to the absorber (3) in the inner space via one-way mirror principle. Thus the light (5) is reflected more efficiently and a more abundant energy gain is provided (Figure 3-4).

Figure 2 is a perspective view of a preferred embodiment of solar energy concentration and absorption system (1) being subject of the invention. The energy absorber (3) indicated here is in the form of photovoltaic electric panel (PV =photovoltaic panel) or a pipe made of raw material of high heat transmission. The energy absorber (3) of pipe shape contains gas or fluid agent to convert the sun rays (5) into heat energy. The invention can be applied to all systems concentrating and generating solar energy or performing work.

Figure 3 is a perspective view of another preferred embodiment of solar energy concentration and absorption system (1) being subject of the invention. As indicated before; said shell (2) is of a structure in the shape of closed curved surfaces such as cylinder, half cylinder, sphere, half sphere or ellipse. This figure illustrates a kind of shell (2) having closed curved surfaces and an energy absorber (3) located in the focal space of the shell (2). Said energy absorber (3) is in the form of sphere so that every sun rays (5) reflected from the reflective surface (2.2) are focused onto the energy absorber (3) and collected.

Figure 4 is a perspective view of another preferred embodiment of solar energy concentration and absorption system (1) above the sea (6) being subject of the invention. As the said shell (2) is of a structure in the shape of closed curved surfaces such as cylinder, half cylinder, sphere, half sphere, ellipse, it reflects the sun rays (5) coming from every direction or every angles to inside by means of reflective surface (2.2) and it concentrates these sun rays (5) onto energy absorber (3) located in the inner space of the shell (2). In this system, not only the sun rays (5) directly coming from sun but also rays (5) reflected from environmental surfaces (4) such as sea (6), lake, pool, glass and similar surfaces are concentrated and absorbed. In further preferred embodiment of the said invention, the said shell (2) can move according to direction of the sun. However, as it is in the shape of enclosed circular surfaces such as cylinder, half cylinder, sphere, half sphere, ellipse, it is possible to absorb and concentrate necessary light (5) with even the least movement.

The protection scope of this application has been specified under claims and cannot be limited to the descriptions only given as sampling above. It is clear that any innovation can be provided by a person skilled in the related art by use of the similar embodiments and/or can also apply this embodiment in other areas for similar purposes used in the related art. Therefore, such embodiments will be lack of novelty criteria and particularly inventive step criteria.

Claims

1. The invention is a solar energy concentration and absorption system (1) developed to absorb the sun rays coming from all directions in open areas receiving sun rays (5) with less movement and more efficiency, wherein it consists of

- a shell (2) in the shape of closed curved surfaces comprising c) an absorber surface (2.1) which is made of transparent raw materials allowing passage of light (5), is located on the external surface of the shell (2), and transmits more than 60% of the sun rays (5) which come from outer space to the inner space and, d) a reflective surface (2.2) which is made of raw materials reflecting the light (5), is located on internal surface of said shell (2), and reflects more than 60% of the sun rays (5) which come from inner space to the absorber via one-way mirror principle,

- an energy absorber (3) located on the focal point of the said shell (2) made of raw material of high heat transmission, in the form of pipe or photovoltaic electric panel containing gas or fluid agent flowing inside it.

2- A solar energy concentration and absorbing system (1) according to claim 1 wherein it consists of a shell (2) in the shape of cylinder, half cylinder, sphere, half sphere, ellipse. - A solar energy concentration and absorbing system (1) according to claim 1 wherein the said reflective surface (2.2) consists of raw materials glued in the form of fine particulates. - A solar energy concentration and absorbing system (1) according to claim 1 wherein it comprises a shell (2) capable to move as per direction of the sun.