A composite system of solar energy utilization and radiation refrigeration

A radiant refrigeration and composite system technology, applied in the field of refrigeration, can solve the problems of low energy density, limiting the application effect of solar energy and radiant refrigeration, occupying a large amount of land resources and space, etc., achieving remarkable results, saving land resources and space, and saving energy. row significant effect

Active Publication Date: 2021-10-26
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The biggest bottleneck problem of solar energy and radiative cooling is that the energy density per unit area is too low, and solar energy can only be applied during the day, which requires a lot of land resources and space, which greatly limits the application effect of solar energy and radiative cooling

Method used

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  • A composite system of solar energy utilization and radiation refrigeration
  • A composite system of solar energy utilization and radiation refrigeration
  • A composite system of solar energy utilization and radiation refrigeration

Examples

Experimental program
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Embodiment 1

[0036] Such as figure 1 As shown, a combined solar energy utilization and radiation refrigeration system in this embodiment includes a radiation refrigeration system and a solar energy conversion and utilization system.

[0037] The radiation cooling system includes a radiation cooling device and a radiation cooling capacity collection and utilization system; the radiation cooling device mainly includes: a radiation cooling film 11, a light reflection surface 12, a heat shield 13, and a light reflection angle adjustment mechanism 14; the radiation cooling capacity collection and utilization system mainly includes: It includes: a radiant refrigeration circulating water pipeline 15 , a first water pump 16 , a first water tank 17 , a second water pump 31 and a cooling pipeline 32 .

[0038] The solar energy conversion and utilization system includes a solar energy conversion device and an energy utilization system; the solar energy conversion device adopts a solar adsorption refr...

Embodiment 2

[0047] Such as figure 2 As shown, a composite system of solar energy utilization and radiation refrigeration in this embodiment, the radiation refrigeration system is the same as in Embodiment 1, and the solar energy conversion and utilization system adopts a photovoltaic refrigeration system, mainly including: photovoltaic panels 41, cables 42, electric refrigerators 43, electric energy storage device 44 .

[0048] Photovoltaic panels 41 are located on both sides of the radiative cooling device. The radiative cooling device radiates electromagnetic waves to space for cooling and at the same time reflects the solar energy irradiated on its surface to the photovoltaic panel 41. The photovoltaic panel 41 receives direct sunlight and sunlight reflected by the radiative cooling device. And the radiated electromagnetic wave of the radiation refrigeration device body, and convert it into electric energy. The electric energy generated by the photovoltaic panel 41 is transmitted to ...

Embodiment 3

[0054] Such as image 3 As shown, this embodiment is a composite system of solar energy utilization and radiation refrigeration. The radiation refrigeration system is the same as that in Embodiment 1. The solar energy conversion and utilization system adopts a photovoltaic power generation system, which mainly includes: photovoltaic panels 41 , cables 42 , and electric energy storage devices 44 . The electric energy generated by the photovoltaic panel 41 is directly transmitted to the electric energy storage device 44 or the user side through the cable 42. The electric energy storage device 44 stores the electric energy generated by the photovoltaic panel 41 during periods of strong sunlight; During the time period, the electric energy storage device 44 alone or the auxiliary photovoltaic panel 41 supplies power to the user side to realize power supply.

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Abstract

The invention discloses a composite system of solar energy utilization and radiation refrigeration, which includes a radiation refrigeration system and a solar energy conversion and utilization system. The radiation refrigeration system includes a radiation refrigeration device and a radiation cold energy collection and utilization system. Utilize the system; the solar energy conversion device is located on both sides of the radiation refrigeration device, and the two form a composite structure energy conversion device. The radiation refrigeration device converts heat energy into electromagnetic waves, radiates electromagnetic waves to space to achieve cooling, and reflects the solar energy irradiated on its surface. Solar energy conversion device, the solar energy conversion device receives direct sunlight, sunlight reflected by the radiation refrigeration device, and radiated electromagnetic waves from the body of the radiation refrigeration device, and converts them into electrical energy, heat energy or cold energy, and realizes solar energy and radiation refrigeration in the same area superimposed utilization. The invention can greatly improve the energy utilization rate and energy density per unit area.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a composite system of solar energy utilization and radiation refrigeration. Background technique [0002] As a renewable energy source, solar energy has been widely used at home and abroad. It can be used for power generation, heating and cooling. It accounts for an increasing proportion of world energy and is one of the main directions of future energy development. Radiation cooling is a zero-energy, passive cooling technology, which uses the spectral characteristics of the earth's atmosphere in the 8-13 μm band to transfer heat directly to space through thermal radiation. The radiation cooling process is carried out throughout the day, and the cooling process does not consume electricity or Mechanical energy has a good application prospect. [0003] The biggest bottleneck problem of solar energy and radiative cooling is that the energy density per unit area is too low, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B23/00F25B17/02F25B27/00F24S20/40
CPCF25B23/003F25B17/02F25B27/007F24S20/40Y02E10/40
Inventor 董凯军苏林
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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