KR20100092832A - A cogeneration equipment using solar energy - Google Patents

Abstract

PURPOSE: A cogeneration equipment using solar energy is provided to increase the generation efficiency of entire generating device according to the decreasing of the temperature of a solar battery. CONSTITUTION: A cogeneration equipment using solar energy comprises a solar cell module(10), a thermal absorption module(20), an auxiliary generator module(30) and a storage battery(40). The solar cell module is included of the condensing lens(12) and solar battery(14). The thermal absorption module is installed between the condensing lens and solar battery. The thermal absorption module absorbs the waste heat created with the solar radiation passing through the condensing lens from the heated solar battery.

Description

Cogeneration equipment using solar energy {A cogeneration equipment using solar energy}

The present invention relates to a cogeneration device using solar energy, and more specifically, to lower the temperature of the solar cell heated by the incident sunlight to increase the power generation efficiency of the solar cell, a sterling engine type generator module, a radial windmill The present invention relates to a cogeneration unit using solar energy that is provided with an auxiliary generator module which can be used as a generator module, an absorption-type refrigerator type generator module, and is driven by waste heat absorbed from a solar cell to increase the power generation efficiency of the entire power generation device. .

Currently, as fossil fuels such as oil and coal are depleted, development of alternative energy is progressing. In particular, development of technology utilizing solar energy is being actively performed.

Power generation technologies that produce electricity using solar energy include solar power generation that generates electricity by driving heat engines using solar heat, and photovoltaic power generation that generates electricity from solar cells using solar light.

Here, the solar cell used for photovoltaic power generation includes a semiconductor compound device that converts sunlight directly into electricity. These semiconductor compounds mainly include silicon (Si) and gallium arsenide (GaAs), and silicon is most used. Dye-sensitized solar cells, CIGS solar cells, CdTe according to the type of semiconductor compound used in solar cells Various solar cells such as solar cells are currently being developed and used.

On the other hand, the solar cell is operated by using the photovoltaic effect of the semiconductor, such a solar cell has a low energy conversion efficiency compared to other energy sources, the energy conversion efficiency is further lowered when the temperature increases. there was. That is, the output of the solar cell decreased by about 0.5% when the surface temperature of the solar cell increased by 1 ° C due to the characteristics of the semiconductor constituting the solar cell.

Therefore, the development of technology that can increase the power generation efficiency of solar cells is currently required.

Meanwhile, a cogeneration device is currently being developed as a device for increasing the power generation efficiency of a power generation device that generates electricity through various energy sources. The cogeneration device generates electricity and is generated from or generated from a power generation device. It is a device that can utilize the heat that is not contributed and is discarded in a heating device or an air conditioning device.

This cogeneration device is applied to photovoltaic power generation and is currently used. Instead of increasing the power generation efficiency of the solar cell as described above, it is to simply use heat dissipated in the photovoltaic process for use in other devices. In the case of the cogeneration device using the solar energy, there is still a problem of low power generation efficiency, the situation is required to develop the technology to improve this.

Therefore, the present invention improves the problems of the prior art, so that the collected solar light having a condenser lens is incident on the solar cell, while absorbing waste heat from the solar cell to lower the temperature of the solar cell of the solar cell It is an object of the present invention to provide a cogeneration device using a new type of solar energy that can increase power generation efficiency.

In particular, the present invention is provided with a secondary generator module that can be used, such as a Stirling engine generator module, a radial windmill generator module, absorption chiller generator module, etc. Cogeneration to drive the Stirling engine generator module by the waste heat absorbed from the solar cell The purpose of the present invention is to provide a cogeneration unit using a new type of solar energy that can increase the power generation efficiency of the entire power generation unit by constructing a power generation unit.

According to a feature of the present invention for achieving the above object, the present invention is a cogeneration system using solar energy, consisting of a condenser lens and a solar cell condensing solar light incident from the outside to generate electricity A solar cell module; A heat absorption module installed between the condenser lens and the solar cell to absorb solar radiation heat passing through the condenser lens and waste heat generated from the heated solar cell; An auxiliary generator module connected to the heat absorbing module to receive heat absorbed by the heat absorbing module, and driven by heat transferred from the heat absorbing module to generate electricity; It is characterized in that it comprises a storage battery which is connected to the light collecting solar cell module and the auxiliary generator module to store electricity.

In the cogeneration system using solar energy according to the present invention, the condensing lens is any one selected from a group of flat convex lenses, convex lenses, and fresnel lenses, and the solar cell is coupled to a heat sink having one surface exposed to the outside. It is characterized in that to be cooled by the outside air.

In the cogeneration device using the solar energy according to the present invention, the auxiliary generator module is characterized in that any one selected from the group of Stirling engine generator module, radial windmill generator module and absorption chiller generator module.

In the cogeneration device using solar energy according to the present invention as described above, the auxiliary generator module is a Stirling engine type generator module including a Stirling engine and a generator, and the heat absorption module has a predetermined shape in which the inside is sealed, and the condensing lens A storage container in communication with a lower surface of the solar cell and an upper surface of the solar cell to receive solar radiation heat passing through the condensing lens while receiving waste heat generated from the heated solar cell; A heat medium composed of any one gas selected from the group consisting of helium gas, argon gas, and nitrogen gas, which is accommodated in the storage container to absorb solar radiation and waste heat; An inflow pipe which connects the storage container and the Stirling engine type generator module to supply the heat medium absorbed in the storage container and absorbed solar radiation heat and waste heat to the Stirling engine type generator module; The storage container and the Stirling engine type generator module is characterized in that it comprises a circulating tubular body which takes heat from the Stirling engine type generator module and supplies the cooled heat medium to the storage container again.

On the contrary, the auxiliary generator module includes a housing having a heat sink formed around the outer circumference, an inlet through which the working gas is introduced, and an outlet through which the working gas is discharged; A rotor installed inside the housing and rotated by an operating gas flowing through the inlet, the rotor having a shape in which a plurality of blades are formed radially along a rotation axis; Is a radial windmill generator module comprising a generator connected to the rotating shaft of the rotor receives the rotation energy to produce electrical energy, the heat absorption module is made of a predetermined shape sealed inside, the condensing lens A storage container communicating with a lower surface and an upper surface of the solar cell to receive solar radiation heat passing through the condensing lens and receiving waste heat generated from the heated solar cell; An operating gas made of any one gas selected from the group of gases including helium gas, argon gas, and nitrogen gas to be accommodated in the storage container to absorb solar radiation and waste heat; An inlet tube which connects the storage vessel and the inlet formed in the housing of the radial windmill generator module to introduce an operating gas that is received in the storage vessel and absorbs solar radiation heat and waste heat into the housing of the radial windmill generator module; The storage container and the outlet formed in the housing of the radial windmill generator module may be configured to include a circulating pipe for supplying the working gas cooled by the heat sink of the radial windmill generator module to the storage container again.

According to the cogeneration apparatus using solar energy according to the present invention, while the concentrated solar light is incident on the solar cell, the solar cell heated by the sunlight by the heat absorption module and the auxiliary generator module is cooled and thus, Power generation efficiency is increased.

In addition, the present invention has the effect that the power generation efficiency of the entire power generation device is increased as the additional power generation is made by the auxiliary generator module that can be used, such as a Stirling engine generator module, a radial windmill generator module, absorption chiller generator module. .

The cogeneration device 100 using the solar energy according to the present invention is a cogeneration device that drives the Stirling engine 32 by absorbing waste heat from the solar cell 14 that generates solar power. Here, the Stirling engine 32 is a component of the Stirling engine type generator module 30a and the Stirling engine type generator module 30a is connected to the rotating shaft 328 which is rotated by the Stirling engine 32. Equipped with power generation.

The cogeneration device 100 using solar energy according to the present invention includes a condensing lens 12 to allow the collected solar light to be incident on the solar cell 14, and a sterling engine type generator module 30a. The heat absorption module 20 is connected to absorb the waste heat from the solar cell 14 to lower the temperature of the solar cell 14 is a technical feature. Accordingly, the power generation efficiency of the solar cell is increased.

In addition, the cogeneration device 100 using solar energy according to the present invention includes a Stirling engine type generator module 30a so that the Stirling engine type generator module 30a is driven by waste heat absorbed from the solar cell 14. It is a technical feature to do. Accordingly, the power generation efficiency of the entire power generation device is increased.

On the other hand, the cogeneration device 100 using solar energy according to the present invention is a radial windmill generator module 30b having the same effect as the Stirling engine generator module 30a, a sterling engine generator as an absorption chiller generator module. It may be configured in place of the module 30a. Such a Stirling engine type generator module (30a), radial windmill generator module (30b), absorption refrigeration generator module is an element used as the auxiliary generator module 30 in the cogeneration device 100 using solar energy according to the present invention. admit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5. On the other hand, in the drawings and detailed description showing and referring to the construction and operation that can be easily known to those skilled in the art from the cogeneration system using a common solar energy is briefly or omitted. In particular, in the drawings and detailed description of the drawings, detailed descriptions and illustrations of specific technical configurations and operations of elements not directly related to technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly shown or described. It was.

FIG. 2 (a) is a schematic diagram of a cogeneration device using solar energy according to a first embodiment of the present invention in which a flat convex lens is used as a condenser lens, and FIG. 2 (b) shows a Fresnel lens as a condenser lens. 3 is a schematic view of a cogeneration device using solar energy according to a first embodiment of the present invention, and FIG. 3 is a schematic view of a heat absorption module constituting a cogeneration device using solar energy according to a first embodiment of the present invention. 4 is a schematic view of a Stirling engine type generator module forming a cogeneration device using solar energy according to a first embodiment of the present invention, Figure 5 is a cogeneration device using solar energy according to a first embodiment of the present invention It is a schematic diagram of the heat absorption module and the radial windmill generator module.

The cogeneration device 100 using solar energy according to the first embodiment of the present invention includes a solar cell module 10, a heat absorption module 20, and an auxiliary generator module 30 as shown in FIG. 2. It comprises a module 30a, the storage battery 40.

The solar cell module 10 consists of a condenser lens 12 and a solar cell 14 to condense solar light incident from the outside to generate electricity.

Here, the convex lens 122 may be used as the condensing lens 12 as shown in FIG. 2A. Alternatively, a general convex lens may be used.

In addition, as the condenser lens 12, a Fresnel lens 124 may be used as shown in FIG. 2B.

The condenser lens 12 has an area larger than the surface area of the solar cell 14 so that the condensed sunlight can be incident on the entire surface of the solar cell 14.

The solar cell 14 is positioned below the condenser lens 12 by a predetermined distance to produce electricity by the condensed sunlight passing through the condenser lens 12.

As described above, the solar cell 14 of the present invention produces electricity by the light collected by the condensing lens 12, thereby increasing power generation efficiency of the solar cell 14.

On the other hand, a heat sink 142 is attached to the lower surface of the solar cell 14 according to a preferred embodiment of the present invention, such a heat sink 142 is exposed to the outside of one side surface is cooled by the outside air incident light The heat of the solar cell 14 heated by the will be released to the outside. Accordingly, the solar cell 14 according to the preferred embodiment of the present invention is lowered in temperature to increase power generation efficiency.

Here, a silicon solar cell that is generally utilized as the solar cell 14 may be used, in contrast, various kinds of solar cells such as GaAs solar cells, CdTe solar cells, CIGS solar cells, dye-sensitized solar stops, and the like may be used. Of course.

The heat absorption module 20 is installed between the condenser lens 12 and the solar cell 14 to absorb the solar radiation heat passing through the condenser lens 12 and the waste heat generated from the heated solar cell 14.

The heat absorption module 20 is connected to the Stirling engine type generator module 30a to transfer the absorbed heat.

Here, the heat absorption module 20 according to a preferred embodiment of the present invention includes a storage container 22, a heat medium 24a, an inflow pipe 26, a circulation pipe 28 as shown in FIG. Is done.

The storage container 22 has a predetermined shape in which the inside is sealed and communicates with the lower surface of the condenser lens 12 and the upper surface of the solar cell 14 to receive solar radiation heat passing through the condenser lens 12. Waste heat generated from the heated solar cell 14 is received.

The heat medium 24a is a medium for absorbing solar radiation heat and waste heat transferred to the storage container 22 as described above, and helium (He) gas, argon (Ar) gas, nitrogen (N) gas, and the like may be used.

The heat medium 24a is also used as an operating gas of the Stirling engine 32 constituting the Stirling engine type generator module 30a. That is, the heat medium 24a is an inflow pipe 26 and a circulation pipe 28. The sterling engine 32 and the storage container 22 which are connected through the circulation are absorbed or released while circulating inside, and the heat medium 24a absorbs heat from the storage container 22, and the sterling engine 32 Will release heat.

The inflow pipe 26 connects the storage container 22 and the Stirling engine 32 of the Stirling engine type generator module 30a to be housed in the storage container 22 to absorb the heat radiation and the waste heat 24a. It is supplied to the Stirling engine 32 of the Stirling engine type generator module (30a).

The circulation pipe 28 is connected to the storage container 22 and the Stirling engine 32 of the Stirling engine type generator module 30a to take heat away from the Stirling engine 32 of the Stirling engine type generator module 30a and cooled. The heat medium 24a is supplied back to the storage container 22.

Here, as the inflow pipe 26 and the circulation pipe 28, a hydraulic hose may be used, or a metal pipe may be used.

The Stirling engine type generator module 30a is connected to the heat absorption module 20 as the auxiliary generator module 30 to receive heat absorbed by the heat absorption module 20, and is driven by heat transferred from the heat absorption module 20. It generates electricity.

Such a Stirling engine type generator module 30a is composed of a Stirling engine 32 and a generator 34 as shown in Figure 4, the Stirling engine 32 according to a preferred embodiment of the present invention is a low temperature of about 80 ℃ or less Will work.

The Stirling engine 32 has a displacer 324 which is integrally coupled with the piston 326 in the cylinder 322, and is circulated with the inlet pipe 26 for entering the space above the displacer 324. The tubular body 28 is connected and is connected with the storage container 22.

Here, check valves 27 and 29 are respectively provided in the inflow pipe 26 and the circulation pipe 28 for connecting the storage container 22 and the Stirling engine 32 of the heat absorption module 20 to each other. The reverse flow of 24a is prevented, and the check valve 27 installed in the inflow pipe 26 prevents the heat medium 24a from flowing backward in the storage container 22 direction, The installed check valve 29 prevents the heat medium 24a from flowing backward in the direction of the Stirling engine 32.

Accordingly, when the heat medium 24a flows into the space above the displacer 324 in the cylinder 322 through the inflow pipe 26, the displacer 324 is connected to the piston 326 by the high temperature heat medium 24a. Rotating the rotary shaft 328 while descending integrally, thereby driving the generator 34 is connected to the rotary shaft 328 and the gear train 330 while the Stirling engine type generator module 30a produces electricity.

On the other hand, the heating medium (24a) is cooled in the process of driving the sterling engine 32 is discharged through the circulation pipe 28 again to the storage container 22, the cooling medium (24a) is cooled as described above When the solar cell 14 flows back into the solar cell 22, the solar cell 14 positioned below the storage container 22 is cooled by the cooled heat medium 24a to increase the power generation efficiency of the solar cell 14.

Here, the sterling engine 32 constituting the sterling engine type generator module 30a is attached to the lower surface of the solar cell module 10 and the solar cell module 10 and the sterling engine type generator module 30a are integrally coupled. The installation space of the cogeneration device 100 of the present invention may be minimized.

The storage battery 40 is connected to the light concentrating solar cell module 10 and the Stirling engine type generator module 30a to store electricity.

On the other hand, auxiliary power equipment such as a power controller (power controller) or a direct current / alternating current (inverter) may be additionally connected to the storage battery 40 as needed.

Here, as the auxiliary generator module 30 constituting the cogeneration device 100 using the solar energy of the present invention, in addition to the above Stirling engine generator module 30a, a radial windmill generator module 30b or an absorption chiller generator module may be used. 5, there is shown a cogeneration device 100 using solar energy according to a second embodiment of the present invention in which a radial windmill generator module 30b is used as an auxiliary generator module 30.

As described above, the radial windmill generator module 30b constituting the cogeneration device 100 using solar energy according to the second embodiment of the present invention includes a housing 36, a rotor 38, and a generator as shown in FIG. It is done by

The housing 36 has a heat sink 366 formed around the outer circumferential surface, and has an inlet 362 through which the working gas 24b flows in and an outlet 364 through which the working gas 24b is discharged.

The rotor 38 has a shape in which a plurality of blades 384 are radially formed around the rotation axis 382, and is installed in the housing 36 and is provided by an operating gas 24b introduced through the inlet 362. In the cogeneration device 100 using the solar energy according to the second embodiment of the present invention, the operation gas 24b is brought into a high pressure state by being absorbed in a storage container 22 having a predetermined volume and absorbing heat. Is continuously introduced into the inlet 362 of the housing 36 through the inlet pipe 26 is to induce a continuous rotation of the rotor 38. In addition, the actuator body 24b, which rotates the rotor 38 and moves in the direction of the outlet 364 of the housing 36, is cooled by a heat radiating action of the heat sink 366 formed around the outer circumferential surface of the housing 36, so that the temperature is cooled. Is discharged to the outlet 364 of the housing 36 in a lowered state and flows back into the storage container 22 through the circulating pipe 28, whereby the solar cell is located below the storage container 22. 14 is cooled by the cooled working gas 24b, so that the power generation efficiency of the solar cell 14 is increased.

The generator is connected to the rotating shaft 384 of the rotor 38 to receive rotational energy to produce electrical energy.

The heat absorption module 20 constituting the cogeneration device 100 using solar energy according to the second embodiment of the present invention is a cogeneration device 100 using solar energy according to the first embodiment of the present invention. It has the same configuration as the heat absorbing module 20, which rotates the rotor 38 of the radial windmill generator module 30b constituting the cogeneration device 100 using the solar energy according to the second embodiment of the present invention The working gas 24b is the same as the heat medium 24b used in the cogeneration device 100 using solar energy according to the first embodiment of the present invention.

In addition, the inlet pipe 26 of the heat absorption module 20 forming the cogeneration device 100 using solar energy according to the second embodiment of the present invention is a storage container 22 and a radial windmill generator module 30b. The inlet 362 connected to the housing 36 of the housing 36 and received in the storage container 22 to absorb solar radiation and waste heat into the housing 36 of the radial windmill generator module 30b. Is introduced, the circulation pipe 28 is connected to the outlet 364 formed in the housing 36 of the storage container 22 and the radial windmill generator module 30b by the heat sink 366 of the radial windmill generator module 30b. The working gas 24b cooled by this is supplied to the storage container 22.

Here, the check valve 27 is provided in the inlet pipe 26 and the circulation pipe 28 connecting the storage container 22 of the heat absorption module 20 and the housing 36 of the radial windmill generator module 30b. (29) is installed to prevent the reverse flow of the operating gas (24b), the check valve 27 is installed in the inlet pipe 26 to prevent the operating gas (24b) from flowing back toward the storage container (22). In addition, the check valve 29 installed in the circulation pipe 28 prevents the operating gas 24b from flowing backward in the direction of the housing 36 of the radial windmill generator module 30b.

As described above, the cogeneration device using solar energy according to the embodiment of the present invention has been shown in accordance with the above description and the drawings, but this is only an example and various modifications are made without departing from the spirit of the present invention. It will be understood by those skilled in the art that variations and modifications are possible.

1 is a block diagram of a cogeneration device using solar energy according to the present invention;

2 (a) is a schematic diagram of a cogeneration device using solar energy according to a first embodiment of the present invention in which a flat convex lens is used as a condenser lens;

2 (b) is a schematic diagram of a cogeneration device using solar energy according to a first embodiment of the present invention in which a Fresnel lens is used as a condenser lens;

3 is a schematic diagram of a heat absorption module forming a cogeneration device using solar energy according to a first embodiment of the present invention;

4 is a schematic diagram of a Stirling engine type generator module forming a cogeneration device using solar energy according to a first embodiment of the present invention;

5 is a schematic diagram of a radial windmill generator module constituting a cogeneration device using solar energy according to a first embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10 solar cell module 12 condensing lens

122: flat convex lens 124: Fresnel lens

14 solar cell 142 heat sink

20: heat absorption module 22: storage container

24a: heating medium 24b: working gas

26: inlet pipe 27, 29: check valve

28: circulation pipe 30: auxiliary generator module

30a: Stirling engine generator module 30b: radial windmill generator module

32: Stirling Engine 34: Generator

322 cylinder 324 displacer

326: piston 328: rotation axis

330: gear train 332: heat sink

36: housing 362: inlet

364: exit 366: heat sink

38: rotor 382: rotation axis

384: blade 40: storage battery

50: wire 100: cogeneration device

Claims (5)

In the cogeneration device using solar energy, Condensing-type solar cell module consisting of a condenser lens and a solar cell to collect solar light incident from the outside to generate electricity; A heat absorption module installed between the condenser lens and the solar cell to absorb solar radiation heat passing through the condenser lens and waste heat generated from the heated solar cell; An auxiliary generator module connected to the heat absorption module to receive heat absorbed by the heat absorption module, and driven by heat transmitted from the heat absorption module to generate electricity; The cogeneration device using solar energy, characterized in that it comprises a storage battery connected to the light collecting solar cell module and the auxiliary generator module to store electricity. The method of claim 1, The condensing lens is any one selected from the group of flat convex lenses, convex lenses, and Fresnel lenses, The solar cell is a cogeneration device using solar energy, characterized in that the one surface is coupled to the heat sink exposed to the outside to be cooled by the outside air. The method according to claim 1 or 2, The auxiliary generator module is a cogeneration device using solar energy, characterized in that any one selected from the group of sterling engine generator module, radial windmill generator module and absorption chiller generator module. The method of claim 3, wherein The auxiliary generator module is a stirling engine type generator module consisting of a stirling engine and a generator, The heat absorption module is formed in a predetermined shape in which the inside is sealed and communicates with the lower surface of the condenser lens and the upper surface of the solar cell to receive solar radiation heat passing through the condenser lens and is generated from the heated solar cell. A storage container to receive the waste heat; A heat medium composed of any one gas selected from the group consisting of helium gas, argon gas, and nitrogen gas, which is accommodated in the storage container to absorb solar radiation and waste heat; An inflow pipe which connects the storage container and the Stirling engine type generator module to supply the heat medium absorbed in the storage container and absorbed solar radiation heat and waste heat to the Stirling engine type generator module; The combined heat and power generation using solar energy comprises connecting the storage container and the Stirling engine type generator module to take the heat from the Stirling engine type generator module and return the cooled heat medium to the storage container. Device. The method of claim 3, wherein The auxiliary generator module has a heat dissipation plate is formed around the outer circumferential surface, the housing having an inlet through which the working gas is introduced and an outlet through which the working gas is discharged; A rotor installed inside the housing and rotated by an operating gas flowing through the inlet, the rotor having a shape in which a plurality of blades are formed radially along a rotation axis; It is connected to the rotary shaft of the rotor is a radial windmill generator module consisting of a configuration including a generator that receives the rotational energy to produce electrical energy, The heat absorption module is formed in a predetermined shape in which the inside is sealed and communicates with the lower surface of the condenser lens and the upper surface of the solar cell to receive solar radiation heat passing through the condenser lens and is generated from the heated solar cell. A storage container to receive the waste heat; An operating gas made of any one gas selected from the group of gases including helium gas, argon gas, and nitrogen gas to be accommodated in the storage container to absorb solar radiation and waste heat; An inlet pipe which connects the storage vessel and the inlet formed in the housing of the radial windmill generator module to introduce an operating gas that is received in the storage vessel and absorbs solar radiation heat and waste heat into the housing of the radial windmill generator module; ; It characterized in that it comprises a circulation pipe for connecting the storage container and the outlet formed in the housing of the radial windmill generator module to supply the working gas cooled by the heat sink of the radial windmill generator module to the storage container. Cogeneration device using energy.

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