EP2452133A1

EP2452133A1 - Sun collector

Info

Publication number: EP2452133A1
Application number: EP09847018A
Authority: EP
Inventors: Harrer Norbert; Csonka László; Csonka Zoltán
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-08
Filing date: 2009-11-04
Publication date: 2012-05-16
Also published as: WO2011004206A1; EP2452133A4; HUP0900426A2; HUP0900426D0

Abstract

The subject of the invention is a solar collector that utilises the physical and chemical qualities of a special fluid and is suitable for providing residential buildings, holiday homes, industrial and agricultural buildings with utilised hot water, and for operating as part of a radiator, wall, ceiling or floor heating system for the complementary heating of a building or a pool. Energy generating machinery that can be integrated into the system allows for the possibility of air-conditioning or the production of electricity. The invention achieves its end by utilising the physical and chemical qualities of a special fluid that emits infra radiation when effected by light for the heating of an intermediary substance.

Description

SUN COLLECTOR

The subject of the invention is a solar collector that utilises the physical and chemical qualities of a special fluid and is suitable for providing residential buildings, holiday homes, industrial and agricultural buildings with utilised hot water, and for operating as part of a radiator, wall, ceiling or floor heating system for the complementary heating of a building or a pool.

Flat-plate collectors and vacuum collectors are the most used collectors at present. Flat-collectors regarding their construction have a copper pipe coil placed behind a copper or aluminium plate with an absorber layer that absorbs sunlight. The copper or aluminium plate is bordered on the sunny side by a plate of glass of one or more layers. There is a thick insulating layer under the pipe coil. This entire device is placed in a housing of suitable size. The different versions of flat-plate collectors have a light reflecting layer built in between the copper pipe coil and the insulating layer. This construction presents several problems. The poor insulating qualities of the single layered glass surface bordering the copper or aluminium plate causes significant heat loss in the collector. As for the version with double layered glass plate, it is more difficult for the light to reach the absorber layer causing a decrease in the efficiency of the collector. It is not possible to create a vacuum inside the device, because there is a danger of the glass plate breaking. As a result, the components inside the device are prone to steaming up or to corrosion.

There are three known generations of vacuum solar collectors. All three generations have a pipe in pipe system. Between the outer and the inner glass pipes there is a vacuum, which lets light through perfectly, and also has excellent insulating qualities. Both types of solar collectors, i.e. flat-plate and vacuum collectors, use a dark matt light- absorbent surface to collect sunlight, which is transferred to a heat carrying fluid that transfers its heat energy to the system that produces hot water and heating in an appropriate heat exchange unit.

The 224140 catalogue number patent describes the features of a sun collector utilising an absorber fluid, which has soot particles in it that function as black bodies. These, due to their black colour, are more light absorbent. The presence of soot particles (solid bodies) in the fluid results in an erosion process in the components of the system whilst damaging the pipe network and the inner wall of the appliances built into the system.

Contrary to the constructions described above the present invention carries out the transformation of the light's energy in an entirely different way. The essence of the invention is in the physical and chemical qualities of the special fluid contained within the collector. This fluid, as a function of the strength of the light, emits infra-red radiation thus creating an intensive heat production process. This heat is then transferred through an appropriate heat exchange unit to the hot water and heating systems. There is no need for complicated pipe coil systems or metal plates that are prone to corrosion. Contrary to the solar collector systems described above this solution omits the heat transfer process between the light absorber surface and the fluid in the collector because this special fluid produces heat as a result of the effect of light. Thus its effectiveness is considerably higher then that of systems presently in use.

The advantageous construction of the invention as shown on the figures has two header tubes (1) with one end closed and purposefully placed spiral shaped glass tubes (2) through which the special fluid is circulated on the collector with the help of a circulating pump. Behind the spiral shaped glass tubes a purposefully built light reflecting reflector (3) concentrates the rays of light that reach the surface of the glass tubes and enter the collector thus increasing light intensity. Behind the light reflecting reflector (3) there is an insulating plate (4) made from a foamed material, which also has a mechanical stiffening function. Around the circumference of the light reflecting reflector (3) there is a purposefully built insulating frame (5) made from a foamed material, which also has a mechanical stiffening function. Purposefully built pipe connectors (6) are placed into the system to ensure that the special fluid can flow in and out and to ensure de-aeration. A solar glass cover plate (7) is also part of the construction and placed at an appropriate distance from the spiral glass tubes (2), between which there is an air insulating layer. The entire construction is placed into a metal housing (8), which on the one hand ensures the secure instalment of the components and on the other hand the mechanical stiffening of the entire system.

Figure 1. shows the axonometric representation of the advantageous solution of the solar collector operating on the principle of the infrared radiation of a special fluid. Figure 2. shows the axonometric representation of the components of the solar collector operating on the principle of the infrared radiation of a special fluid.

LIST OF THE REFERENCE SYMBOLS:

1. header tube

2. spiral shaped glass tubes

3. light reflecting reflector

4. insulating plate

5. insulating frame

6. pipe connector

7. solar glass cover plate

8. metal housing

Claims

1. There is a special fluid in the solar collector operating on the principle of the infrared radiation of a special fluid characterised by the fact that its composition is unique.

2. The special fluid described in claim 1. is characterised by the fact that its power consumption is greater than 7 W/cm².

3. The special fluid described in claim 1. or claim 2. is characterised by the fact that it can be used in a thin layer.

4. The special fluid described in claim 1. or claim 2. or claim 3. is characterised by the fact that its colouring material content found in water based solvent is 2-10 % of the total weight of the special fluid.

5. The special fluid described in claim 1. or claim 2. or claim 3. or claim 4. is characterised by the fact that its absorbent capacity of the visible spectrum is 99.999%.

6. The constructed form of the solar collector that houses the special fluid described in claim 1. or claim 2. or claim 3. or claim 4. is characterised by the fact that it is equipped with a glass mechanism that regulates the flow direction of the special fluid.

7. The constructed form of the solar collector described in claim 6. is characterised by the fact that the glass mechanism that regulates the flow direction of the special fluid is constructed from two header tubes (1) with one end closed and purposefully placed spiral shaped glass tubes (2).

8. The constructed form of the solar collector described in claim 6. or claim 7. is characterised by the fact that by installing a solar glass cover plate (7) an air insulating layer forms between it and the glass mechanism that regulates the flow direction of the special fluid.

9. The constructed form of the solar collector described in claim 6. or claim 7. or claim 8. is characterised by the fact that a light reflecting reflector (3) is placed behind the glass mechanism that regulates the flow direction of the special fluid.

10. The constructed form of the solar collector described in claim 6. or claim 7. or claim 8. is characterised by the fact that there is an insulating plate (4) made from a foamed material behind the light reflecting reflector (3) and a purposefully built insulating frame (5) made from a foamed material around the glass mechanism that regulates the flow direction of the special fluid.