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Device capable of simultaneously obtaining heat source from sun and cold source from cosmic deep space

A technology of solar heat collecting panel and heat source, applied in the field of solar heat collecting, can solve the problems of low efficiency per unit area of ​​solar energy equipment, and achieve the effect of solving space competition, reducing loss and increasing temperature difference

Active Publication Date: 2021-11-02
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects of the prior art, the present invention provides a device that can simultaneously obtain the heat source from the sun and the cold source from the deep space of the universe, which solves the technical problem of low efficiency per unit area of ​​solar energy equipment

Method used

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  • Device capable of simultaneously obtaining heat source from sun and cold source from cosmic deep space
  • Device capable of simultaneously obtaining heat source from sun and cold source from cosmic deep space
  • Device capable of simultaneously obtaining heat source from sun and cold source from cosmic deep space

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Experimental program
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Effect test

Embodiment 1

[0057] Such as figure 2 As shown, the solar collector plate 1 selects a Ge material with high electromagnetic wave absorptivity and infrared transparency below the wavelength of 2.5 microns, and its absorptivity and transmittance spectrum is as follows image 3 As shown in C and D;

[0058] The infrared transparent cover plate 2 chooses ZnSe material, and its transmittance spectrum is as follows image 3 Shown in E and F;

[0059] The structure of the radiation cooling plate 3 is 70nm silicon nitride, 700nm silicon, 150nm silver and metal substrate from top to bottom, and its radiation rate / absorption rate spectrum is as follows: image 3 Shown in G and H.

[0060] Experimental results such as Figure 4 As shown, when the sun rises in the morning, the temperature of the collector plate T H , ambient temperature T a and the radiant cooling plate temperature T c Both started to rise. But since the solar heat collector 1 has absorbed such image 3 The solar radiation sh...

Embodiment 2

[0063] Such as Figure 5 As shown, under the condition that other structures and conditions are the same as those in Example 1, the optimal design of heat transfer is carried out for the solar thermal collector plate 1 . Above the vacuum chamber 5 , a conical reflective surface 6 is arranged on the outer periphery of the solar collector plate 1 , and the top of the conical reflective surface 6 is covered with a transparent PE film 7 . Through the conical reflective surface 6 and the fully transparent PE film 7, the temperature of the heat source and the temperature difference between the cold and heat sources can be greatly increased. The experimental results are as follows Figure 6 shown.

[0064] In summary, the device of the present application can continuously provide a cold source that is always lower than the ambient temperature day and night, and a heat source that is higher than the ambient temperature during the day and equal to the ambient temperature at night.

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Abstract

The invention relates to a device capable of simultaneously obtaining a heat source from the sun and a cold source from the cosmic deep space. The device comprises a vacuum cavity, a solar heat collection plate and a radiation refrigeration plate, the top surface of the vacuum cavity is sealed by an infrared transparent cover plate to form a sealed cavity; the solar heat collection plate is arranged above the vacuum cavity, and the solar heat collection plate is made of an infrared transparent material and is used for absorbing solar radiation so as to obtain the heat source; and the radiation refrigeration plate is arranged in the vacuum cavity, and the radiation refrigeration plate is used for continuously radiating heat outwards in the form of electromagnetic waves with the wavelength of 8-13 microns and penetrating through the cover plate, the solar heat collection plate and the atmosphere to reach the outer space to obtain low temperature, so that the cold source is obtained. The unit area efficiency of solar equipment is improved, the extra cold source can be provided while the heat source power is not affected in the daytime, and the stable cold source continues to be provided when the solar equipment cannot work at night.

Description

technical field [0001] The invention relates to the technical field of solar heat collection, in particular to a device capable of simultaneously obtaining a heat source from the sun and a cold source from the deep space of the universe. Background technique [0002] The existing solar heat collection technology mainly has the following application forms: 1) solar water heaters absorb solar radiation during the day, store it as heat energy, and use it to heat working fluid; 2) thermoelectric effect (thermoelectric effect), heat collecting plate absorbs Solar energy produces a heat source, and the heat engine utilizes the heat of the extremely hot plate and the temperature difference of the environment to directly convert it into electrical energy. The shortcomings of the above two forms are: 1. It cannot solve the problem of periodic changes in solar radiation, and cannot work at night; 2. The power output per unit area is subject to the solar radiation power and the solar l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S20/25F24S50/40
CPCF24S20/25F24S50/40Y02E10/40
Inventor 陈震赵晓冬张政
Owner SOUTHEAST UNIV
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