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Integrated liquid-filled spectrum filtering condenser, system and light energy regulation and control method thereof

An integrated, concentrator technology, applied in the field of solar energy utilization, can solve problems such as spectral frequency division absorption and light concentration that are not considered

Pending Publication Date: 2021-10-01
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical solutions of these variable focus lenses also include liquid lens components. However, they all change the shape of the liquid through electrowetting, temperature and other effects to achieve the zoom function without considering the combination of spectral frequency division absorption and light concentration through the liquid lens. Provide liquid absorption spectral filtering and concentration functions for solar frequency division and concentration systems
[0010] Therefore, based on a single liquid-filled or liquid lens device to achieve the combination of spectral frequency division and light concentration, there is no similar device example at present. No matter from the perspective of cost or configuration flexibility, the optical system with integrated light concentration and frequency division Devices are of great significance in the promotion and application of photovoltaic photothermal comprehensive utilization systems

Method used

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  • Integrated liquid-filled spectrum filtering condenser, system and light energy regulation and control method thereof
  • Integrated liquid-filled spectrum filtering condenser, system and light energy regulation and control method thereof
  • Integrated liquid-filled spectrum filtering condenser, system and light energy regulation and control method thereof

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Embodiment 1

[0078] Based on the first principle of light direction regulation, the integrated liquid-filled spectral filter concentrator proposed by the present invention can realize two concentrating methods, linear concentrating and point concentrating, according to specific application requirements. Taking five liquid-filled cavities as an example, the cross-sectional shape of the integrated liquid-filled spectral filter concentrator in the linear concentrating mode is as follows: Figure 2a As shown, the stereogram of the linear concentrator is shown as Figure 3a shown. The sealing ring 1302 is used to seal the filling liquid in the cavity formed by wrapping the incident-side cover plate 1301 and the exit-side cover plate 1303 . The incident-side cover plate 1301 and the exit-side cover plate 1303 are made of high-transmittance polymer material (refractive index 1.3), and the liquid in the five liquid-filled cavities is filled with a semi-transparent liquid that selectively absorbs ...

Embodiment 2

[0090] Based on the first principle of light direction regulation, Figure 9 A schematic diagram of another example of an integrated liquid-filled spectral filter concentrator according to the content of the present invention is given, and the concentrating mode is linear concentrating. The main difference between the structure of Embodiment 2 and Embodiment 1 is that the incident-side cover 1311 and the exit-side cover 1313 are made of translucent materials containing nanoparticles and having a spectrally selective absorption effect. For example, the incident-side cover plate 1311 and the exit-side cover plate 1313 are made of high-transmittance polymer material (refractive index 1.3) doped with silver nanoparticles, which can absorb high-energy photons that cannot be effectively converted by photovoltaic cells (ultraviolet partial). photons). The liquids in the five liquid-filled cavities are of different types. From left to right, the filled liquids are heat-conducting oil...

Embodiment 3

[0095] Figure 10a , Figure 10b A schematic cross-sectional view and a perspective view of a third type of integrated liquid-filled spectral filter concentrator according to the content of the present invention are given. On the basis of filling the liquid-filled light-concentrating filter, this structure adds a solid cover plate on the incident side The function of the material to gather light. Different from the structure in Embodiment 1, the incident side cover plate 1321 is designed as a form of a condenser lens (such as a Fresnel lens structure, a spherical lens, an aspheric lens, a linear Fresnel lens, a linear spherical lens, and linear aspherical lens) to achieve the effect of the incident-side cover plate 1321 in solid form and the filling liquids 1, 2, 3, 4, and 5 concentrating light together.

[0096] Embodiment 3 selects that the incident side cover 1321 is designed as a Fresnel lens structure, and the concentrating method is linear concentrating, and the incide...

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Abstract

The invention discloses an integrated liquid-filled spectrum light filtering condenser, a system and a light energy regulation and control method thereof, and the integrated liquid-filled spectrum light filtering condenser comprises an incident side cover plate, a liquid filling cavity, an emergent side cover plate and a seal between the incident side cover plate and the emergent side cover plate; the incident side cover plate and the emergent side cover plate are sealed to form a cavity with a certain shape, and the cavity is filled with semitransparent liquid which has an absorption characteristic on radiation outside a response spectrum interval of the photovoltaic cell to form a liquid filling cavity; and the solid part and the liquid part are combined to carry out spectral absorption and light condensation shape design, so that an integrated optical device integrating a spectral absorption function, a light condensation function and a liquid heat absorption function is formed. According to the invention, the absorption liquid filling layer is used for constructing the integrated light filtering condenser with a light condensing function, so that the effect of dynamically regulating and controlling the light condensing ratio or the spectral absorption range is realized; the design complexity of the spectrum light splitting type photovoltaic / thermal system is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to an integrated liquid-filled spectral filter concentrator and a light energy regulation method thereof. Background technique [0002] Among renewable energy utilization technologies, solar energy has unique advantages due to its huge reserves and wide adaptability in different countries and regions. The utilization of solar energy still faces many technical obstacles. On the one hand, in view of the low energy density of solar energy, solar energy conversion systems are often combined with concentrating systems to increase the irradiated energy flow density of the receiving surface, which can improve the energy efficiency of the system within a certain range and Reduce system costs, such as concentrated photovoltaics, concentrated solar thermal systems, etc. On the other hand, solar energy has the characteristics of low conversion efficiency, and conventional pho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B19/00G02B5/22G02B5/24F24S23/00H02S40/22
CPCG02B19/0009G02B19/0042G02B5/22G02B5/24F24S23/00H02S40/22Y02E10/44Y02E10/52
Inventor 巨星赵爽曲椿煜徐超杜小泽
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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