Experimental apparatus and method for directional solidification of nanofluid

Abstract

The invention discloses an experimental apparatus for the directional solidification of nanofluid. The experimental apparatus comprises a constant-temperature insulation cover, wherein an upper cold platform, an upper cold conductor, a lower cold conductor and a lower cold platform are successively mounted in the constant-temperature insulation cover from top to bottom, the upper cold conductor is fixedly mounted at the lower part of the upper cold platform, the lower cold conductor is fixedly mounted at the upper part of the lower cold platform, a gap for placing of a nanofluid sample to be tested is reserved between the upper cold conductor and the lower cold conductor, a refrigeration piece is mounted at the top end of the upper cold platform, an air inlet is formed in the top end of the constant-temperature insulation cover, a fan is mounted at the air inlet, an air outlet is formed in the bottom end of the constant-temperature insulation cover, a temperature sensor for measuring the temperature in the constant-temperature insulation cover is also mounted in the constant-temperature insulation cover, and a window through which the nanofluid sample to be tested can be taken and placed is formed in the front end of the constant-temperature insulation cover. The experimental apparatus disclosed by the invention solves the problem that a directional solidification apparatus cannot solidify low-temperature phase-change materials, and the method for the study on the solidification process of the nanofluid is provided.

Description

technical field [0001] The invention relates to an experimental device, in particular to an experimental device and method for directional solidification of nanofluids. Background technique [0002] With the rapid development of my country's economy and modernization, the scale of cities continues to expand, and the structure of electricity consumption changes rapidly. The contradiction between supply and demand has become increasingly prominent. Ice storage is one of the effective methods to solve the contradiction between power demand and power supply on the user side. Traditional ice storage faces the technical bottleneck of low thermal conductivity of ice, large thermal resistance during ice storage, and low energy storage efficiency. [0003] Nowadays, water-based nanofluids are expected to become excellent cold storage media due to their higher thermal conductivity and lower supercooling than water. However, nanofluids used as energy storage materials must withstand c...

AI Technical Summary

Problems solved by technology

At present, the stability research of nanofluids in the process of solid-liquid phase transition has not yet been carried out, and the uniform distribution of nanofluids after solidification and crystallization has not been paid much attention.

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