Nano refrigerant, and experimental apparatus for capability of heat transferring pressure drop of gas-liquid two phases

An experimental device and refrigerant technology, applied in the direction of measuring devices, climate sustainability, heat exchange materials, etc., can solve problems such as complex heat transfer mechanism, achieve the effect of reducing heat exchange area, reducing cost, and reducing resource consumption

Inactive Publication Date: 2005-11-16
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Although nanofluids in a broad sense include nanorefrigerants, nanorefrigerants in refrigeration devices mainly exchange heat in the two-phase region. During the heat exchange process, the refrigerant will appear in a complex state of gas-liquid two-phase. The mechanism is extremely complex
In the above patents, the fluid is in a simple liquid phase, and does not involve a two-phase state, and there is no special experimental device for gas-liquid two-phase heat transfer pressure drop performance for the study of heat transfer in the two-phase region, and a high-speed camera is used to take pictures of bubbles, etc.

Method used

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  • Nano refrigerant, and experimental apparatus for capability of heat transferring pressure drop of gas-liquid two phases
  • Nano refrigerant, and experimental apparatus for capability of heat transferring pressure drop of gas-liquid two phases

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Embodiment Construction

[0014] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] The present invention consists of refrigerants with nano-particles with a diameter below 100nm, wherein the nano-materials are: Cu, Ni or Al 2 o 3 .

[0016] Such as figure 1 , The present invention includes a compressor 1, a condenser 2, an electronic expansion valve 3, a mixer 4, an experimental section 5, an evaporator 6, a valve 7, a flow meter 8, an accumulator 9, a high-speed camera 10, and a hot air blower 11. Compressor 1, condenser 2, electronic expansion valve 3, mixer 4, experimental section 5, mixer 4, evaporator 6, valve 7, flow meter 8, liquid accumulator 9, high-speed camera 10, hot air blower 11 connected end to end , the connection method is: the outlet of compressor 1 is connected to the inlet of condenser 2, the outlet of condenser 2 is connected to the inlet of electromagnetic expansion valve 3, the outlet of...

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Abstract

A nano-refrigerant is prepared from the granular refrigerant composed of Cu, Ni or Al2O3 nanoparticles whose diameter is less than 100 nm. Its expriment equipment for the gas-liquid heat-transfer pressure drop performance is composed of compressor, condenser, electromagnetic expansion valve, mixers, experiment segment, evaporator, valves, flowmeter, liquid accumulator, and high-speed camera.

Description

technical field [0001] The invention relates to a refrigerant and an experimental device for its gas-liquid two-phase heat transfer pressure drop performance, in particular to a high-efficiency nano-refrigerant using nanomaterials as additives and an experimental device for its gas-liquid two-phase heat transfer pressure drop performance. Refrigeration and air conditioning technology field. Background technique [0002] Refrigeration devices are ubiquitous in various sectors of the national economy and people's daily life, and are widely used in various fields such as air conditioning, food refrigeration, industrial production, medical and health care, and microelectronics. Due to its wide range of applications and the need to consume a large amount of energy, many cities in our country have experienced power shortages due to excessive power consumption of refrigeration equipment during the peak period of summer electricity consumption, and the power supply department is for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00C09K5/00
CPCY02B30/66Y02B30/00
Inventor 王凯建丁国良姜未汀
Owner SHANGHAI JIAO TONG UNIV
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