CN209844900U - Non-tracking composite planar bilateral concentrating photovoltaic photo-thermal assembly for building - Google Patents

Non-tracking composite planar bilateral concentrating photovoltaic photo-thermal assembly for building Download PDF

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Publication number
CN209844900U
CN209844900U CN201920671743.XU CN201920671743U CN209844900U CN 209844900 U CN209844900 U CN 209844900U CN 201920671743 U CN201920671743 U CN 201920671743U CN 209844900 U CN209844900 U CN 209844900U
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photovoltaic
heat
cooling water
water pipe
plate
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CN201920671743.XU
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端木琳
王宗山
余东津
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Dalian University of Technology
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Dalian University of Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/60—Thermal-PV hybrids

Abstract

The utility model provides a two side spotlight photovoltaic light and heat subassembly of compound plane that non-tracking for building belongs to building energy saving technology and energy application technical field. The composite plane type bilateral concentrating photovoltaic photo-thermal component mainly comprises a reflecting plate, a cooling water pipe, a heat insulation component, a photovoltaic plate and a heat absorbing plate, the reflecting plate is used for improving the solar radiation intensity reaching the photovoltaic plate, the purpose of improving the output power of the photovoltaic plate is further achieved, the cooling water pipe cools the photovoltaic plate, the purpose of improving the efficiency of the photovoltaic plate is achieved, meanwhile, heat is collected into the water of the cooling water pipe, and the heat insulation component is adopted to reduce the heat loss. Through the design of the upper and lower bilateral photovoltaic panels and the condenser, the solar radiation receiving area is increased, the problem of large annual output fluctuation of the existing non-tracking concentrating photovoltaic photo-thermal system is solved, and higher and stable annual output is realized. Meanwhile, the structure of the building enclosure structure is similar to that of a building enclosure structure, and building integration is easy to realize.

Description

Non-tracking composite planar bilateral concentrating photovoltaic photo-thermal assembly for building
Technical Field
The utility model belongs to building energy saving technology and energy application field relate to a non-tracking's compound plane two side spotlight photovoltaic light and heat subassembly, especially relate to the light and heat and the photoelectric conversion process of sunlight, and building integration realizes the comprehensive utilization of solar energy.
Background
With the reduction of conventional energy and the aggravation of environmental problems, the use of new energy has become an important part of research. Solar energy in new energy is clean and inexhaustible renewable energy, and solar energy resources in China are abundant, and solar radiation energy received on the surface of land every year is about 50 multiplied by 1018kJ, therefore, the significance of solar energy research and application is great, wherein a photovoltaic photo-thermal system is a system capable of effectively utilizing solar energy in multiple levels, but the solar energy is also wide in range and low in radiation per unit area, so that research needs to be carried out by combining a condenser. The existing tracking condenser often has the problems of high cost and difficulty in building integration, and the non-tracking condenser has the condition of instable output all the year around, and needs to be considered and researched in terms of the two aspects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a non-tracking's two side spotlight photovoltaic light and heat subassembly of compound plane, this subassembly realizes through the design of upper and lower two sides photovoltaic board that the output is stable throughout the year, all has the spotlight ware about the while, can effectively improve system light and heat photoelectric efficiency. The component has the advantages of simple structure, convenient manufacture and easy processing and production, the condenser belongs to a low-power condenser, the surface temperature of a higher-power condenser is lower and safer, and the component is easy to install on a building.
The technical scheme of the utility model is that:
a non-tracking composite plane type bilateral concentrating photovoltaic photo-thermal component is used as a member of a building envelope structure or is directly placed in an empty space on a building, such as a roof, for receiving all-day illumination; the composite planar bilateral concentrating photovoltaic photo-thermal component comprises a reflecting plate 1, a cooling water pipe 2, an insulating layer 3, a photovoltaic plate 4, a heat absorbing plate 5 and a connecting layer 6;
the heat-insulating layer 3 is in a triangular prism shape, and an S-shaped cooling water pipe 2 which is in the same inlet and outlet is arranged in the heat-insulating layer; the two side surfaces of the heat-insulating layer 3 are sequentially provided with a connecting layer 6, a heat absorbing plate 5 and a photovoltaic plate 4 from inside to outside; bottom edge lines of two side surfaces of the heat preservation layer 3 are connected with the reflecting plates 1; utilize reflecting plate 1 to improve the solar radiation intensity who reachs photovoltaic board 4, and then reach the purpose that improves photovoltaic board 4 output, condenser tube 5 cools off photovoltaic board 4, reaches the purpose that improves photovoltaic board 4 efficiency, collects the heat in condenser tube 2's aquatic simultaneously, and heat preservation 3 has reduced thermal scattering and disappearing.
The reflecting plate 1 is made of high-reflectivity materials, such as a mirror steel plate, a plane mirror and the like; the lower photovoltaic panel OB is designed in the same manner as the photovoltaic panel disclosed in application No. 201710944097.5, and the upper photovoltaic panel OA is designed in the following manner:
as shown in FIG. 2, the coordinate origin is O, the lower photovoltaic panel OB is the lower half axis of the y-axis, the straight line perpendicular to OB and passing through O is the x-axis, and the local latitude is defined asThe angle of inclination α, α of the upper photovoltaic panel OA to the negative x-axis half-axis is equal toDesign incident angle theta0Is y positive half axis and ray angle, andthe number n of the reflector blocks is determined according to actual needs, the condensing ratio is improved along with the improvement of n, and the illumination is uniformThe uniformity decreases as n increases, and n is 3 in the figure as an example.
Determining the position of the upper reflecting plate according to the following formula; beta'iIs a reflector plate P'i-1P’iAngle with the negative half axis of the x-axis, wherein i>1；β′1Is a reflecting plate BP'1An included angle between the negative half shaft and the x axis, r is the length of the upper photovoltaic panel OA, so thatEndpoint P 'of reflector plate 1'iThe coordinates are:
determining each inclination angle beta 'by taking the maximum geometric concentration ratio CR as a target'iFinally, obtaining a determination formula of each inclination angle:
in the formula: beta'minMinimum tilt angle, β ', at which the reflector plate can be provided'maxN is the maximum tilt angle that the reflector can be set, and n is the total number of reflector blocks.
The cooling water pipe 2 adopts a metal pipeline with high heat transfer, and a cooling medium in the metal pipeline has high heat storage capacity;
the heat-insulating layer 3 is made of heat-insulating cotton or other heat-insulating filling materials;
the heat absorbing plate 5 is made of a metal sheet made of the same material as the cooling water pipe 2 and is connected with the cooling water pipe 2 in a welding mode;
the connecting layer 6 is made of heat-conducting daub, and the photovoltaic panel 4 and the heat absorbing plate 5 are connected together under the condition of ensuring good heat transfer.
The utility model discloses an effect and benefit: multi-level make full use of solar energy combines light and heat photoelectricity together, uses spotlight ware reinforcing component output simultaneously, fully considers the obvious problem of winter and summer output power difference that the non-tracking form exists, adopts the design of both sides install the photovoltaic board additional simultaneously about the adoption to adopt different design incident angles, guarantee that the output is higher and stable throughout the year. Simultaneously, the upper photovoltaic plate and the lower photovoltaic plate are combined into the same component, so that the water outlet temperature of cooling water is increased, and the heat efficiency of a system is improved. The structure is similar to a plurality of building envelopes on the building, and can be used as a substitute component to realize building integration, such as cornice.
Drawings
Fig. 1 is a schematic structural view of the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 2 is a schematic view of the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 3 is a detailed schematic view of the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 4(a) is a simulation result of the energy flow distribution in summer near the latitude of 39 ° on the photovoltaic panel under the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 4(b) is a simulation result of the energy flow distribution in summer near the latitude of 39 ° on the photovoltaic plate on the upper side of the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 5(a) is a spring and autumn simulation result of energy flow distribution near the latitude of 39 ° on the photovoltaic panel under the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 5(b) is a result of the spring and autumn simulation of the energy flow distribution at the latitude of 39 ° on the photovoltaic panel on the upper side of the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 6(a) is the simulation result of the energy flow distribution in winter and autumn near the latitude of 39 ° on the photovoltaic panel under the concentrating photovoltaic photo-thermal module of the present invention.
Fig. 6(b) is the simulation result of the utility model of the energy flow distribution in winter and autumn near the latitude of 39 degrees on the photovoltaic plate on the upper side of the concentrating photovoltaic photo-thermal module.
Detailed Description
In order to better describe the features of the present invention, the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The first embodiment is as follows:
1. setting conditions: the installation place is near latitude 39 degrees, and the installation position is the building cornice.
2. The design process comprises the following steps: the reflecting plate 1 is a plane mirror, the cooling water pipe 2 is a copper pipe, the heat preservation layer 3 is made of heat preservation cotton, the photovoltaic plate 4 is made of a single-crystal silicon plate, the heat absorption plate 5 is a thin copper plate, and the connecting layer 6 is made of heat conduction daub. Upper photovoltaic panel tilt angleDesign incident angleThe number n of mirror blocks is 3. Beta'iIs a reflecting plate BP'iR is the length of the photovoltaic panel OB.
Order toThen P'1The coordinates are
Order toThen P'2The coordinates are
Order toThen P'3The coordinates are
Determining each inclination angle beta 'by taking the maximum geometric concentration ratio CR as a target'iFinally, obtaining a determination formula of each inclination angle:
determining beta 'when the latitude is 39 DEG'min＝63°，β′max＝105°。
Finally, the inclination angles beta 'of the reflectors are obtained'1、β′2、β′377 °, 91 °, 105 °, respectively. The geometric concentration ratio CR was 1.5.
The lower side is calculated to obtain the condensing ratio of 2, which is close to the upper side, and the intensity of the direct solar radiation is 1000W/m through Tracepro simulation analysis2The incident is simulated, the highest output power time of the upper side and the lower side are winter and summer respectively, the lowest output power time of the upper side and the lower side are summer and east season respectively, and the highest output power time and the lowest output power time are just complementary, so that the total annual output of the assembly can be well balanced. Fig. 4, 5, and 6 show simulation results, the left graph shows simulation results on the lower side, the right graph shows simulation results on the upper side, the X-axis of the graph shows the horizontal position of the collector, and the Y-axis shows the solar radiation intensity.

Claims (10)

1. A non-tracking composite plane type bilateral concentrating photovoltaic photo-thermal component is characterized in that the composite plane type bilateral concentrating photovoltaic photo-thermal component is used as a member of a building envelope structure or is directly placed in an empty space on a building for receiving all-day illumination; the composite planar concentrating photovoltaic photo-thermal component comprises a reflecting plate (1), a cooling water pipe (2), a heat preservation layer (3), a photovoltaic plate (4), a heat absorbing plate (5) and a connecting layer (6);
the heat-insulating layer (3) is in a triangular prism shape, and an S-shaped cooling water pipe (2) which is in the same inlet and outlet is arranged in the heat-insulating layer; two side surfaces of the heat-insulating layer (3) are sequentially provided with a connecting layer (6), a heat absorbing plate (5) and a photovoltaic plate (4) from inside to outside; bottom edge lines on two side surfaces of the heat-insulating layer (3) are connected with the reflecting plates (1); the reflecting plate (1) is utilized to improve the solar radiation intensity reaching the photovoltaic panel (4), so that the purpose of improving the output power of the photovoltaic panel (4) is achieved; the cooling water pipe (2) cools the photovoltaic panel (4), the purpose of improving the efficiency of the photovoltaic panel (4) is achieved, meanwhile, heat is collected in the water of the cooling water pipe (2), and the heat preservation layer (3) reduces the loss of heat.
2. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 1, wherein said reflector plate (1) is made of high reflectivity material.
3. The non-tracking composite planar double-sided concentrated photovoltaic photothermal component according to claim 1 or 2, wherein the cooling water pipe (2) is a metal pipe with high heat transfer, and the cooling medium is water.
4. The non-tracking composite planar double-sided concentrating photovoltaic photothermal element according to claim 1 or 2, wherein the thermal insulation layer (3) is made of thermal insulation cotton or thermal insulation filling material.
5. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 3, wherein the thermal insulation layer (3) is made of thermal insulation cotton or thermal insulation filling material.
6. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 1, 2 or 5, wherein the heat absorbing plate (5) is made of a metal sheet made of the same material as the cooling water pipe (2) and is connected with the cooling water pipe (2) by welding.
7. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 3, wherein the heat absorbing plate (5) is made of a metal sheet made of the same material as the cooling water pipe (2) and is connected with the cooling water pipe (2) by welding.
8. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 4, wherein the heat absorbing plate (5) is made of a metal sheet made of the same material as the cooling water pipe (2) and is connected with the cooling water pipe (2) by welding.
9. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 1, 2, 5, 7 or 8, wherein the material of the connecting layer (6) is a thermal conductive paste, which connects the photovoltaic panel (4) and the absorber plate (5) together in a condition of good heat transfer.
10. The non-tracking composite planar double-sided concentrated photovoltaic photothermal element according to claim 6, wherein the material of the connecting layer (6) is a thermal conductive paste, which connects the photovoltaic panel (4) and the heat absorbing panel (5) together under good heat transfer.
CN201920671743.XU 2019-05-13 2019-05-13 Non-tracking composite planar bilateral concentrating photovoltaic photo-thermal assembly for building Active CN209844900U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110120782A (en) * 2019-05-13 2019-08-13 大连理工大学 A kind of composite plane type bilateral concentrating photovoltaic photo-thermal component of non-tracking for building

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110120782A (en) * 2019-05-13 2019-08-13 大连理工大学 A kind of composite plane type bilateral concentrating photovoltaic photo-thermal component of non-tracking for building
CN110120782B (en) * 2019-05-13 2023-12-15 大连理工大学 Non-tracking composite planar double-side concentrating photovoltaic photo-thermal assembly for building

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