Ternary refrigerant mixture for pulsating heat pipe

A technology of pulsating heat pipes and mixed working fluids, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve problems such as limited heat transfer capacity, and achieve the effects of strong heat transfer capacity, enhanced heat transfer, and good stability

Inactive Publication Date: 2015-08-05
TIANJIN UNIV OF COMMERCE
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Problems solved by technology

However, under high heating load, since its heat storage capacity is the same as that of water, too many air bubbles are generated due to the hea

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  • Ternary refrigerant mixture for pulsating heat pipe
  • Ternary refrigerant mixture for pulsating heat pipe
  • Ternary refrigerant mixture for pulsating heat pipe

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with specific examples.

[0017] A ternary mixed working fluid for pulsating heat pipes is prepared by mixing two binary working fluids in a certain proportion. The two binary working fluids should meet the following basic requirements:

[0018] 1) The two binary working fluids are both water-based solutions;

[0019] 2) The binary working medium one is a nanofluid with high thermal conductivity, the larger the thermal conductivity of the metal nanoparticles, the better, and the smaller the particle size of the metal nanoparticles, the better;

[0020] 3) The binary working medium 2 is a self-wetting fluid whose surface tension exhibits an inverse Marangoni effect at a certain temperature.

[0021] 4) Binary working fluid one nanofluid is the graphene oxide solution that concentration is 0.5mg / ml; Binary working fluid two is the n-butanol aqueous solution that mass fraction is 0.5%; Two kin...

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Abstract

The invention discloses a ternary refrigerant mixture for a pulsating heat pipe. The ternary refrigerant mixture is prepared by evenly mixing a binary working medium graphene oxide dispersion liquid with a binary working medium normal butanol water solution, wherein the concentration of the binary working medium graphene oxide dispersion liquid is 0.5mg/ml; the mass percent of the binary working medium normal butanol water solution is 0.5%; and the binary working medium graphene oxide dispersion liquid and the binary working medium normal butanol water solution are evenly mixed at a volume ratio of 2 to 5. The pulsating heat pipe employing the ternary refrigerant mixture can be started under relatively small thermal load; and the heat transfer property of the pulsating heat pipe can be strengthened within the overall work range, so that the pulsating heat pipe employing the mixed solution as a working medium is relatively small in size and relatively light in weight under the same thermal load, and has a relatively wide application prospect in the field of heat dissipation of electronic parts and components and aviation and aerospace.

Description

technical field [0001] The invention relates to the technical field of phase change pulsating heat pipe heat transfer, in particular to a ternary mixed working medium for strengthening the phase change heat of a pulsating heat pipe and a determination method thereof. Background technique [0002] The pulsating heat pipe is a new type of phase-change coreless heat pipe proposed by the Japanese Akachi in the 1990s. In response to the rapid development of the electronics industry, the power consumption of electronic equipment has continued to increase, and the heat dissipation has risen sharply. Compared with traditional heat pipes with liquid-absorbing cores, pulsating heat pipes are simple in structure, small in size, light in weight, easy to manufacture, low in cost and excellent in performance. They are widely used in the cooling of electronic equipment and in aerospace and other fields. [0003] The pulsating heat pipe is generally bent into a serpentine structure by the c...

Claims

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Application Information

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IPC IPC(8): C09K5/04
CPCC09K5/04
Inventor 苏新军张明
Owner TIANJIN UNIV OF COMMERCE
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