A solar collector using mxene nanofluids

Abstract

The invention belongs to the technical field related to solar energy utilization, and discloses a MXene nanofluid and a preparation method thereof. The method includes: mixing MXene with a dispersant to obtain a mixture, and using an ultrasonic instrument to disperse the mixture into a base liquid to obtain an energy MXene nanofluids that efficiently absorb solar radiation. The application also provides a solar heat collector using the above-mentioned MXene nanofluid, the solar heat collector includes at least one heat collecting unit, each heat collecting unit includes a groove, the MXene nanofluid is arranged in the groove, and the groove The bottom and side walls of the groove are provided with a reflective coating to reflect solar radiation, and the opening of the groove is provided with a transparent thermal insulation material to seal the opening; the heat collecting unit also includes a convex lens, and the groove is located on the focal point of the convex lens. The present application solves the problem of low heat collection efficiency of the existing solar heat collector by improving the structure of the solar heat collector and the heat exchange fluid therein.

Description

technical field [0001] The invention belongs to the technical field related to solar energy utilization, and more specifically relates to a solar heat collector using MXene nanofluid. Background technique [0002] The efficient use of solar energy has always been the relentless pursuit of human beings. At present, the indirect absorption solar collector is mainly used in the field of solar heat collection. Absorb solar radiation to form a high-temperature surface, and then heat the fluid through the heat transfer method of convection heat exchange to realize the utilization of solar energy. Although this method can easily realize the absorption of solar radiation, there are many heat transfer links. The disadvantages such as large loss lead to the inability to further improve the heat collection efficiency. The direct solar collector is different from the indirect collector. It uses the direct absorption of solar radiation by the heat transfer fluid itself to realize the ut...

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Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a solar collector using MXene nanofluids, which increases the concentration and reflection of solar radiation by adding concentrating convex lenses and reflective coatings, and adopts MXene nanofluids The fluid is used as a heat transfer medium to improve the performance of the heat transfer medium to absorb solar radiation, so as to improve the heat collection efficiency of the existing solar collectors, and then solve the problem of low heat collection efficiency of the existing solar heat collectors

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