Device and method for synthesizing silver-copper alloy nanofluid

Abstract

The invention discloses a device and a method for synthesizing a silver-copper alloy nanofluid, and belongs to the technical field of nanofluid preparation. The device and the method for synthesizing the silver-copper alloy nanofluid solves the problems that a traditional heat exchange working medium cannot meet the heat exchange requirement of extremely high heat, a nanofluid preparation method basically requires a high-temperature and high-pressure environment and a toxic reducing agent, and common metal nanoparticles are prone to oxidation. The preparation process is simple to operate, ascorbic acid is used as a reducing agent, and the method is safe to operate and environment-friendly; and in the aspect of particle selection, silver and copper metals with high heat conductivity coefficients are selected, so that the heat conductivity of the base solution can be improved to the maximum extent, the problem that the metals are easy to oxidize can be better solved by dispersing the silver and copper metals in the base solution in an alloy form, and the nano-fluid particles prepared by the preparation method are uniform in particle distribution, have the particle size of 60-90 nm and are good in heat-conducting property.

Description

technical field [0001] The invention relates to the preparation of nanofluids, in particular to a reaction system for preparing silver-copper alloy nanofluids. Background technique [0002] In the fields of aerospace, energy chemical industry, microelectronics technology, etc., the heat load of advanced electronic equipment and high-power devices continues to increase, and traditional heat dissipation working fluids such as water and heat transfer oil are increasingly unable to meet the heat dissipation requirements, and nanofluids As a new type of The heat exchange working fluid has higher thermal conductivity, so it has a wider application prospect. [0003] In 1995, Choi et al. of Argonne National Laboratory in the United States proposed nanofluid: a stable suspension formed by adding 1-100nm metal or non-metal particles to the base fluid. This is an innovative research in the field of nanotechnology applied to thermal engineering. The preparation method of nanofluid is ...

AI Technical Summary

Problems solved by technology

The advantage of the single-step method is that the nanoparticles are uniformly dispersed and the heat transfer performance is better, but the preparation process is complicated, the cost is high, and it is not easy to mass-produce, and the traditional single-step method preparation device basically requires a high temperature and high pressure environment, and the risk of reducing agents High coefficient, not friendly to the environment

The two-step preparation of nanofluids has the advantages of simple process, low cost, and easy mass production, but there are also disadvantages such as the particles are not easy to disperse, which leads to a decrease in heat transfer performance.

Images