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A combined cold and heat collection and storage device and method based on advanced sky radiation

A technology of sky radiation and storage device, which is applied in the field of solar energy collection, energy storage, and radiative refrigeration, which can solve problems such as energy waste, achieve the effects of saving equipment costs, compact structure, and improving energy conversion and storage efficiency

Active Publication Date: 2021-05-07
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, so far, no one has paid attention to how to use the sunlight reflected by metamaterials, and this part of energy is often wasted

Method used

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  • A combined cold and heat collection and storage device and method based on advanced sky radiation
  • A combined cold and heat collection and storage device and method based on advanced sky radiation
  • A combined cold and heat collection and storage device and method based on advanced sky radiation

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Embodiment Construction

[0051] In order to better understand the above technical solutions, the following will describe exemplary embodiments of the present invention in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be more clearly and thoroughly understood, and the scope of the present invention can be fully conveyed to those skilled in the art.

[0052] Specific embodiment description part

[0053] Such as figure 1 As shown, a combined cold and heat collection and storage device based on advanced sky radiation of the present invention includes a thermal energy circulation loop and a cold energy circulation loop.

[0054] Among them, the thermal energy circulation loop includes: heat storage unit ...

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Abstract

The invention discloses a combined cold and heat collection and storage device and method based on advanced sky radiation. The device is mainly composed of a heat storage unit, a solar collector and a radiation refrigeration and cold storage integrated unit. The surface of the integrated unit of radiation refrigeration and storage is coated with a layer of metamaterial, which has high emissivity in the 8-13 μm band and high reflectivity to full-spectrum sunlight. The device not only utilizes the high emissivity of metamaterials for cooling, but also collects the sunlight reflected by metamaterials for heating, which can simultaneously achieve cooling and heating during the day; It can be directly stored in the phase change material without intermediate heat exchange fluid, which improves the energy conversion and storage efficiency, has a compact structure, and can control the surface temperature of the metamaterial. The cooling and heat storage technology can effectively overcome the instability of solar energy and realize stable cooling and heating combined supply on the user side.

Description

technical field [0001] The invention relates to a combined cold and heat collection and storage device based on advanced sky radiation, and designs an efficient cold and heat energy acquisition, storage and joint supply method, which is especially suitable for places with abundant solar energy and combined cooling and heating, and belongs to radiation Refrigeration, solar harvesting and energy storage. Background technique [0002] Radiant cooling is a passive cooling method. The Earth's surface environment is transparent to electromagnetic waves with a wavelength of 8-13 μm, and this band is just the band of peak thermal radiation of objects at typical ambient temperatures. Therefore, due to the temperature difference between the object and the outer space (which can be regarded as an infinite space with absolute zero), it releases radiant heat, and most of the radiant heat can pass through the earth's surface to reach the outer space, thereby realizing the cooling of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B23/00F25B49/00F24D11/02F24D19/10F24F5/00F24F11/84F24F13/30
CPCF24D11/0221F24D19/1042F24F5/0021F24F13/30F24F2005/0032F25B23/003F25B49/00F24F11/84Y02B10/20Y02B10/70Y02E60/14Y02A30/60
Inventor 罗伊默折晓会彭晋卿
Owner HUNAN UNIV
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