Dynamic thermal radiation refrigeration device based on phase change material vanadium dioxide

Abstract

The invention belongs to the technical field of thermal radiation, and particularly relates to a dynamic thermal radiation refrigeration device based on phase change material vanadium dioxide. According to the dynamic thermal radiation refrigeration device based on the phase change material vanadium dioxide, on the basis of the classic metal-medium-metal metasurface structural design, a transition medium layer is introduced to effectively improve the adhesive force of a phase change material vanadium dioxide film; and the whole device is adjusted and controlled to correspond to the peak value of the black body radiance at the room temperature through selection of the medium layer material, and therefore, the technical problem that an existing heat radiation refrigeration device is relatively poor in refrigeration effect is effectively solved. According to the dynamic thermal radiation refrigeration device based on the phase change material vanadium dioxide, when the temperature is higher, energy is radiated outwards through an intermediate infrared 8-14 micron atmosphere window, and sunlight is reflected; when the temperature is lower, energy is hardly radiated outwards, so that the functions of intelligent temperature control and dynamic refrigeration are achieved; the device has the characteristics of intelligent dynamic temperature control, simple structure, convenience in large-area preparation, zero energy consumption, polarization insensitivity and the like; and the device is of great significance in solving the problem of excessive refrigeration and relieving the urban heat island effect, and has application potential in the fields of infrared camouflage and the like.

Description

technical field

[0001] The invention belongs to the technical field of heat radiation, and in particular relates to a dynamic heat radiation cooling device based on a phase-change material vanadium dioxide. Background technique

[0002] With the increase of urbanization rate, the heat island effect intensifies, and the annual energy consumption for cooling increases sharply. The traditional refrigeration method uses heat convection and heat conduction to cool, which has the disadvantages of high energy consumption, pollution and release of greenhouse gases. Utilizing these methods can intensify the heat island effect on the other hand and create a vicious circle. How to break such a vicious circle is a major challenge facing mankind at present.

[0003] Radiant cooling is a form of heat transfer that enables cooling with zero energy consumption and zero emissions, without the need for electricity, refrigerants, or moving parts. And the heat radiation method is to dissipat...

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