KR101634251B1 - Solar chimney tower and solar energy collecting apparatus - Google Patents

Abstract

An embodiment of the present invention, in a solar chimney tower and an energy collecting device, provides the solar chimney tower and the energy collecting device comprising: a heat collecting unit with a floor unit having a plurality of first protrusion units and a roof unit positioned on an upper side of the floor unit having a plurality of second protrusion units heating internal air by absorbing solar energy with the floor unit and the roof unit arranged at a predetermined interval; a chimney unit positioned on a center of the heat collecting unit through which the air heated by the heat collecting unit is collected and discharged thereafter; and an electricity producing unit positioned inside the chimney unit, including a turbine, producing electricity by a rotation of the turbine. A plurality of first and second protrusion units are formed by turns in a vertical direction; and the purpose of the present invention is to solve a problem of low power generation efficiency of the solar chimney tower by increasing a thermal efficiency per unit area of the heat collecting unit.

Description

SOLAR CHIMNEY TOWER AND SOLAR ENERGY COLLECTING APPARATUS [0002]

The present invention relates to a solar chimney tower and a heat collecting apparatus, and more particularly, to a solar chimney tower and a heat collecting apparatus, which comprises a hot water tank, a chimney, and a power generating unit having a first projection and a second projection, And a heat collecting device and a solar chimney tower that generate electricity by rotating the turbine as the flow rate and the flow rate of the air are increased due to an increase in the length of time of heating and a long period of time.

Increasing the temperature of the air by solar heat is the same principle as the mechanism of global warming: the solar heat increases the temperature of the earth's surface and the surface again emits infrared rays, which warms the air layer.

The concept of the solar chimney is to install a large roof that allows sunlight to penetrate the surface of the earth so that the greenhouse effect can be generated on the surface of the earth. The air is sucked from the outermost entrance of the hot water tank, And when the air reaches the lower end of the high chimney located in the middle of the wide hot water tank, the air turbine generator installed at the lower end of the chimney is turned on due to the exhaust effect of the chimney and the rising air flow. The greater the difference between the air density in the chimney and the atmospheric density in the outside atmosphere at the same height from the surface, the better the better the chimney is.

 Finally, the output of the solar chimney is proportional to the amount of air contained in the total volume obtained by multiplying the height of the chimney by the area of the hot water collector. In 1982, Manzanares, Spain, operated a 120 m diameter hydrothermal unit and a 190 m chimney, but only 0.13% of the solar heat could be converted to electricity. In order to increase the efficiency, researches such as increasing the area of the hot water collector have been carried out. However, when comparing the renewable energy and the economical efficiency, the efficiency is low.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of increasing the thermal efficiency per unit area of a solar collecting unit compared with a general method of increasing the efficiency of the solar collecting unit, And to solve the problem of relatively low efficiency compared to the original one.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided a solar chimney tower and a heat collecting apparatus including a bottom having a plurality of first projections, a plurality of second projections located on an upper side of the bottom, A bottom portion and a roof portion are separated from each other by a predetermined distance to absorb the solar heat to heat the inside air, a chimney portion located at the center of the hot water collecting portion and collecting heated air from the hot water collecting portion, A turbine, and a power generating unit for generating electric power by the operation of the turbine, wherein a plurality of first projections and a plurality of second projections are formed alternately up and down. to provide.

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the first protrusion or the second protrusion may be integrally formed.

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the first projecting portion or the second projecting portion is formed in a separable shape, and the adjacent first projecting portion and the second projecting portion are formed to be staggered .

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the vertical section of the first projection and the second projection may be semicircular or polygonal.

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the shapes of the first projections and the second projections may be different from each other.

According to an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the first projecting portion or the second projecting portion is disposed to a predetermined portion inside the hot water collecting portion.

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the first projection or the second projection may have a shape or a pitch different from the direction of the chimney.

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, the bottom portion may be made of asphalt or black paint.

Further, in an embodiment of the present invention, in the solar chimney tower and the heat collecting apparatus, a plurality of turbines may be provided.

In an embodiment of the present invention, the roof part of the solar chimney tower and the heat collecting device may be a transparent material.

According to an embodiment of the present invention, there is provided a method of operating a solar chimney tower and a heat collecting device, the method comprising the steps of: introducing air into the hot water collector and heating the bottom portion of solar light through the roof portion; Wherein the ascending air passes through the first projecting portion and the second projecting portion to form a vortex and is accelerated and flows into the chimney; a step in which the introduced vortex drives the turbine; Storing and / or transmitting power to the solar chimney tower and the heat collecting apparatus.

According to the embodiment of the present invention, since the air is passed through the heat collecting unit, the air can be transferred upward or downward or from side to side to receive a larger amount of heat from the surface, and as the air temperature increases and the buoyancy increases, The flow rate is increased, and as a result, more rising airflow is formed, and the turbine is operated, so that the power generation efficiency can be enhanced.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a vertical cross-sectional view of a solar chimney tower and heat collecting apparatus according to an embodiment of the present invention.
2 is a plan view of a solar chimney tower and a heat collecting device in which a first protrusion or a second protrusion is integrally formed and disposed according to an embodiment of the present invention.
3 is a vertical cross-sectional view of a solar chimney tower and a heat collecting device in which first and second projections are formed in a separated form according to an embodiment of the present invention.
FIG. 4 is a plan view of a solar chimney tower and a heat collecting device in which first projections and second projections are separately formed and arranged according to an embodiment of the present invention.
5 is a schematic view showing a first protrusion and a second protrusion for illustrating an embodiment of the present invention.
FIG. 6 is a schematic view showing a change in size and pitch of first and second protrusions for illustrating an embodiment of the present invention. FIG.
7 is a schematic view showing the flow of fluid according to the shape of the first projection or the second projection of the present invention.
8 is a schematic view showing the flow of fluid according to the shape of the first projection or the second projection of the present invention.
9 is a schematic diagram showing the flow or heat change of the fluid in the first embodiment of the present invention.
10 is a schematic diagram showing the flow or heat change of the fluid in the second embodiment of the present invention.
11 is a schematic diagram showing the flow or heat change of fluid in Comparative Example 1 of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

One embodiment of the present invention is a solar chimney tower and a heat collecting apparatus comprising a bottom portion 11 having a plurality of first projections 111, a plurality of second projections 121 The bottom part 11 and the roof part 12 are separated from each other by a predetermined distance so as to absorb the solar heat so that the inside air is heated. The hot water collecting part 10, the hot water collecting part 10, A chimney section 20 positioned at the center of the turbine 30 and being heated by the hot water collector 10 to escape from the turbine 30 and a turbine 30 located inside the chimney, And a plurality of first protrusions 111 and a plurality of second protrusions 121 are formed alternately up and down, and a solar chimney tower and a heat collecting device.

The solar chimney tower and the heat collecting apparatus according to the embodiment of the present invention can prevent the air flow inside the hot water collector 10 from causing a vortex flow rather than a simple laminar flow used in the existing invention to increase the heat transfer efficiency from the ground to the air will be.

1, the first protrusion 111 and the second protrusion 121 are formed alternately up and down, so that the air flow path can be formed differently from the conventional one. Also, the time for heating the air becomes longer, and the first protrusion 111 and the second protrusion 121 change the flow of air to generate vortex. The speed of the air passing through the hot water collection unit 10 can be accelerated while approaching the lower part of the small diameter chimney unit 20 while slowly moving at the entrance outside the hot water collection unit 10.

The hot water collector 10 can serve as a greenhouse covering a large area around the chimney 20. The hot water collector 10 includes a roof part 12 and a bottom part 11 and the air between the roof part 12 and the bottom part 11 can be heated by solar heat. At this time, the bottom part 11 may be asphalt or black paint, and it is not limited to the material of the bottom part 11, and it does not exclude a material capable of raising the temperature by raising the temperature by absorbing solar heat to generate radiant heat . The bottom portion 11 can be formed on the ground surface, but the bottom portion 11 can be formed by providing a separate structure on the ground surface. The roof part 12 can be made of a transparent material, which does not exclude materials that can cause the greenhouse effect.

The bottom 11 and the roof 12 can have protrusions wherein the bottom 11 has a first protrusion 111 and the roof 12 has a second protrusion 121 have. The first protrusion 111 or the second protrusion 121 may be integrally formed, and when formed integrally, the first protrusion 111 or the second protrusion 121 may be formed alternately up and down as shown in the schematic views of FIGS. The first protrusion 111 and the second protrusion 121 may be separated from each other and the adjacent first protrusion 111 and the second protrusion 121 may be staggered. 3 and 4, it is possible to confirm the arrangement of the first protrusion 111 and the second protrusion 121 when the first protrusion 111 and the second protrusion 121 are separated from each other.

The vertical section of the first protrusion 111 and the second protrusion 121 may be semicircular or polygonal. Of course, the shapes of the first projecting portion 111 and the second projecting portion 121 may vary depending on mounting conditions or requirements, but are not limited thereto. The shapes of the first projection 111 and the second projection 121 may be different from each other, but the same shape is not excluded. As shown in FIGS. 7 and 8, it can be seen that the flow of air varies according to the shape of the second protrusion 121.

The number of the first projections 111 and the second projections 121 can be determined in consideration of the area of the hot water collector 10.

The first protrusion 111 and the second protrusion 121 become obstacles and the flow of air inside the hot water collector 10 is made to be a turbulent flow to improve airtightness time and heat transfer rate of the air. Accordingly, the first protrusion 111 and the second protrusion 121 can be formed only up to a predetermined portion in order to prevent the air flow from being disturbed and the flow rate of the air being reduced. The predetermined portion may be based on a point where air is rapidly accelerated according to the area of the hot water collector 10.

The first projecting portion 111 and the second projecting portion 121 may have different shapes, shapes or pitches with respect to the direction of the chimney portion 20. The pitches of the first and second projecting portions 111 and 121 are increased and the size of the shape is reduced as the distance from the chimney portion 20 is increased. It can be confirmed in the embodiment shown in Figs. 5 and 6.

The chimney 20 may be located in the center of the hot water collector 10. Since the density of the air passing through the hot water collector 10 is low, the air can be discharged through the chimney 20 by the chimney effect.

A power generating unit (not shown) may be provided inside the chimney unit 20. The power generation unit (not shown) includes a turbine 30, and the turbine 30 can be configured as a single type, but does not preclude the provision of a plurality of turbines 30. [ The air that has passed through the hot water collection unit 10 is discharged through the chimney unit 20 to rotate the turbine 30 and the turbine 30 can generate power by using the power.

In the operation method of the solar chimney tower and the heat collecting apparatus according to the embodiment of the present invention, air is introduced into the hot water collector 10 and sunlight passes through the roof part 12, (11) is heated and the heated air is heated and rising. As the rising air passes through the first protrusion (111) and the second protrusion (121) and forms a vortex, (20), wherein the incoming vortex drives the turbine (30), the turbine (30) producing power and storing or transmitting the power, and a solar chimney tower And the method of operation of the apparatus.

In the step of heating the bottom 11 and heating the inflow air, when the material of the bottom 11 absorbs solar radiation and emits radiant heat, a greenhouse effect occurs inside the hot water collector 10, . The temperature of the air can increase as the residence time of the air in the heat collecting unit 10 becomes longer in the process of passing through the first projecting portion 111 and the second projecting portion 121. [

Hereinafter, the effects of the present invention will be described in detail with reference to Examples, Comparative Examples and Experimental Examples of the present invention. The embodiments presented are only a concrete example of the present invention and are not intended to limit the scope of the present invention. The shape and pitch of the first projecting portion 111 and the second projecting portion 121 are different from each other according to the requirements of use , Manufacturing requirements, and mounting requirements.

≪ Example 1 >

In the design of the solar chimney tower and the heat collecting device according to the embodiment of the present invention, the radius of the hot water collector is 20 m high and 1 m, the roof part 12 is made of a transparent plastic material and the bottom part is made of asphalt Respectively. The second protrusions were formed in a rectangular shape, and the first protrusions were fabricated in the same shape as the second protrusions.

≪ Example 2 >

Except that the shape of the first projections was changed to a semicircular shape.

≪ Comparative Example 1 &

Except that the first projecting portion and the second projecting portion were not provided.

<Experimental Example 1>

Experiments were conducted on Example 1, Example 2, and Comparative Example 1 to confirm the effect of the embodiment of the present invention. The same amount of sunlight was illuminated under the same conditions, and thus, the movement speed and temperature change of the air inside the solar chimney tower and the heat collecting device were confirmed, and the results are shown in Table 1.

Initial velocity (m / s) Final velocity (m / s) Initial temperature (K) Final temperature (K) Example 1 One 1.21 293 352 Example 2 One 1.208 293 349 Comparative Example 1 One 1.006 293 297

Figs. 9 to 11 are photographs showing the results of Example 1, Example 2, and Comparative Example 1. Fig. 9 (a) shows the flow of air and shows the change in the flow velocity, and Fig. 9 (b) shows the temperature change of the air in the first embodiment. 10 (a) shows the flow of air in the second embodiment, and FIG. 10 (b) shows the temperature change of the air in the second embodiment. Fig. 11 (a) shows the flow of air in Comparative Example 1, showing almost no change in the flow velocity. Fig. 11 (b) shows the temperature change of air in Comparative Example 1, As shown in FIG.

9 and 10, it can be seen that vortices are formed during the passage of air through the heat collecting part in the first and second embodiments, so that the flow velocity is increased and the temperature rises. As can be seen from Table 1 and FIG. 11, it can be seen that the flow rate and temperature of the existing hot water collector without the first and second protrusions are insignificant. Accordingly, the solar chimney tower and the heat collecting apparatus having the first protrusion and the second protrusion according to the first embodiment and the second embodiment according to the embodiment of the present invention, compared to the conventional solar chimney power plant of the first comparative example, Which is effective in the production of electricity used.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

1: Chimney Tower
10:
11:
111: first protrusion
12: roof part
121: second protrusion
20: chimney section
30: Turbine

Claims (11)

In solar chimney towers and heat collecting devices,
A bottom portion having a plurality of first projections, and a roof portion located above the bottom portion and having a plurality of second projections, wherein the bottom portion and the roof portion are separated by a predetermined distance to absorb solar heat, A hot water column;
A chimney part located at the center of the hot water collecting part and through which the air heated in the hot water collecting part collects and escapes;
A power generating unit located inside the chimney, including a turbine, the power being generated by the operation of the turbine;
Lt; / RTI &gt;
Wherein the plurality of first protrusions and the plurality of second protrusions are formed alternately up and down.
The method according to claim 1,
Wherein the first projecting portion or the second projecting portion is integrally formed.
The method according to claim 1,
Wherein the first protrusion or the second protrusion is formed in a separable shape, and the adjacent first protrusion and the second protrusion are formed to be staggered.
The method according to claim 1,
Wherein the vertical section of the first protrusion and the second protrusion is semicircular or polygonal.
The method according to claim 1,
Wherein the shape of the first protrusion and the shape of the second protrusion are different from each other.
The method according to claim 1,
Wherein the first projecting portion or the second projecting portion is disposed to a predetermined portion inside the heat collecting portion.
The method according to claim 1,
Wherein the first projecting portion or the second projecting portion has a shape or a pitch different from the direction of the chimney portion.
The method according to claim 1,
Wherein the bottom is made of asphalt or black paint.
The method according to claim 1,
Wherein the plurality of turbines are provided.
The method according to claim 1,
Wherein the roof part is a transparent material.
A method of operating a solar chimney tower and a heat collecting device according to any one of claims 1 to 10,
i) introducing air into the hot water collector and heating the bottom of the solar collector through the roof;
ii) heating the bottom and heating the inflow air;
iii) the rising air passes through the first projection and the second projection to form a vortex and is accelerated into the chimney;
iv) the inflowing vortex actuating the turbine;
v) producing the turbine and storing or transmitting it;
Wherein the solar chimney tower and the heat collecting device operate in the same manner.

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