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Nanofluid used for heat dissipation, preparation method and application of nanofluid

A nano-fluid and nano-particle technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of slow progress in research and development of new cooling materials, low efficiency and cost of thermoelectric modules, and difficulty in meeting the heat dissipation requirements of spectrometers. Application prospects and industrial production potential, low price, and the effect of low collision frequency

Inactive Publication Date: 2017-09-08
HUBEI JIUZHIYANG INFRARED SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Adding a cooling module to the shell is currently a relatively cost-effective heat dissipation method for the spectrometer. Traditional heat dissipation measures such as electric fans and thermoelectric modules have relatively low equivalent costs. Aging of parts and electronic components
[0004] At present, the research and development of new cooling materials is progressing slowly, and there is an urgent need for a cooling method with high heat dissipation efficiency and low cost.

Method used

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  • Nanofluid used for heat dissipation, preparation method and application of nanofluid
  • Nanofluid used for heat dissipation, preparation method and application of nanofluid
  • Nanofluid used for heat dissipation, preparation method and application of nanofluid

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preparation example Construction

[0026] The present invention also discloses the preparation method of the above-mentioned nanofluid. The basic liquid is prepared by fully mixing 85% by weight of distilled water and 15% of toluene, and adding 0.15—0.3% by weight of copper particles with a particle size of less than 100 nm to 99.6 —99.8% of the basic liquid, then add 0.05—0.1% of sodium lauryl sulfate to ensure that the weight ratio of the dispersant to the weight of the nanoparticles is less than or equal to 2. After 1.5-2 hours of ultrasonic vibration, a uniform and stable Cu / H 2 O nanofluid.

[0027] The invention also discloses the application of the above-mentioned nanofluid, which is used to dissipate heat from the shell of the spectrometer, and the speed of the nanofluid flowing into the heat dissipation device is greater than 1m / s and less than 5m / s.

Embodiment 1

[0028] Example 1: Under normal pressure, the boiling point of copper nanofluid of 0.15-0.3% by weight was measured. Such as figure 1 As shown, the boiling point temperature can reach 130.5-133.2°C.

Embodiment 2

[0029] Example 2: The thermal conductivity of copper nanofluid with a weight percentage of 0.15-0.3% at different temperatures was measured. Such as figure 2 As shown, the thermal conductivity of copper nanofluid is the highest at 130°C, and the thermal conductivity of the nanofluid with a weight percentage of 0.3% is 14.3% higher than that of the base liquid with a weight percentage of 0%.

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Abstract

The invention discloses a nanofluid used for heat dissipation. The nanofluid is obtained by uniformly mixing the following ingredients by weight percentage: 0.15-0.3% of nano-particles, 99.6-99.8% of basic fluid and 0.05-0.1% of a dispersing agent through ultrasonic vibration, wherein the nano-particles are copper with the particle size of less than 100 nm; the basic fluid is obtained by fully mixing 85% of distilled water and 15% of methylbenzene by weight percentage; the dispersing agent is sodium dodecyl sulfate. The invention further discloses a preparation method of the nanofluid and application to heat dissipation for a shell of a spectrograph. The boiling point of the nanofluid under normal pressure is as high as 130.5-133.2 DEG C, so that the requirement for heat dissipation in long-time power on of the spectrograph can be met; the service life of optical components and electronic components in the spectrograph can be prolonged; when the nanofluid is matched with a heat dissipation device of the spectrograph for use, the sedimentation rate is small, the stability is good, and the efficiency-cost ratio is high. Therefore, the requirement for heat dissipation in long-time power on of the spectrograph can be met.

Description

Technical field [0001] The invention belongs to the technical field of electronic equipment cooling, and specifically relates to a nanofluid for heat dissipation, a preparation method thereof, and heat dissipation for a spectrometer housing. Background technique [0002] The spectrometer is a complex imaging device that integrates high-speed infrared imaging components, Michelson interferometer, and other sophisticated electronic devices and complex optical systems, which cause large internal heat generation and affect the normal operation of the instrument. The heat dissipation of the spectrometer needs to occupy as little internal space as possible, and at the same time make the heat source cool evenly. [0003] Installing a cooling module on the outer shell is currently the most cost-effective heat dissipation method for spectrometers. Traditional heat dissipation measures such as electric fans and thermoelectric modules have relatively low equivalent costs. It is difficult to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/08C09K5/10
CPCC09K5/08C09K5/10
Inventor 肖骁叶小风郭良贤梁娟
Owner HUBEI JIUZHIYANG INFRARED SYST CO LTD