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High-temperature heat pipe design optimization method

A high-temperature heat pipe and optimization method technology, applied in design optimization/simulation, multi-objective optimization, computer-aided design, etc., can solve problems such as difficulties in heat pipe analysis and research

Active Publication Date: 2021-03-19
XI AN JIAOTONG UNIV
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  • Application Information

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Problems solved by technology

Due to the mutual coupling of heat and mass transfer and flow characteristics of the vapor inside the heat pipe, the liquid-absorbing wick and the tube wall area, it is difficult to analyze and study the heat pipe.

Method used

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  • High-temperature heat pipe design optimization method
  • High-temperature heat pipe design optimization method
  • High-temperature heat pipe design optimization method

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Embodiment Construction

[0125] A high-temperature heat pipe design optimization method, the steps are as follows:

[0126] Step 1: Determination of the working environment of the high temperature heat pipe, including the pipe wall diameter D wall , heat pipe length L HP , evaporation section L e , adiabatic section L a , condensation section L c The required range of length, mechanical strength σ operation Requirements, operating temperature T operation Interval, maximum heat transfer power Q max , start time τ start Require;

[0127] Step 2: Determination of the independent design variable X of the high-temperature heat pipe, including the heat pipe working fluid WM and the pipe wall thickness δ wall , wick type WICK, wick porosity ε, wick thickness δ wick , vapor zone diameter D v , Evaporation section length L e and the condensation section length L c ;

[0128] X=(WM,WICK,δ wall ,δ wick ,D v ,ε,L e , L c ,...) T (1)

[0129] Step 3: Determination of the target variable F fo...

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Abstract

The invention discloses a high-temperature heat pipe design optimization method, and the method mainly comprises the following steps: 1, determining a working environment of a high-temperature heat pipe, including a working temperature range, a geometric dimension requirement and a mechanical property requirement; 2, selecting independent design variables of the high-temperature heat pipe; 3, determining an optimization target variable of the high-temperature heat pipe; 4, determining design constraint conditions of the high-temperature heat pipe; 5, setting and calculating a high-temperatureheat pipe multi-objective optimization algorithm; 6, completing calculation of a first-generation design according to steady-state and transient characteristics of the high-temperature heat pipe; 7, completing calculation, and outputting a calculation result. According to the method, the steady-state heat and mass transfer characteristics of the high-temperature heat pipe and the transient response characteristics of freezing start are considered, performance improvement of multi-target parameters of the heat pipe is guided on the basis of combination of a high-temperature heat pipe design analysis result and a multi-target optimization algorithm, and guidance is provided for design and analysis of the high-temperature heat pipe.

Description

technical field [0001] The invention relates to the technical field of phase-change heat equipment, in particular to a design optimization method for high-temperature heat pipes. Background technique [0002] As an efficient and reliable passive heat transfer device, high-temperature heat pipes are widely used in aerospace, chemical industry, nuclear reactors and other fields due to their high-efficiency heat transfer capacity, excellent safety and simple structure. The structure of a typical heat pipe includes a shell, a wick and a working fluid. A liquid-absorbing core is attached to the inner wall of the heat pipe shell, which is filled with working fluid. The working temperature of the heat pipe depends on the type of working fluid. Heat pipes are usually artificially divided into three parts: the evaporating section, the adiabatic section, and the condensing section. The evaporating section absorbs heat from the heat source to evaporate the working fluid, and the vap...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/28G06F30/20G06F111/04G06F111/06G06F119/08
CPCG06F30/17G06F30/28G06F30/20G06F2111/06G06F2111/04G06F2119/08
Inventor 王成龙田智星苏光辉张大林田文喜秋穗正
Owner XI AN JIAOTONG UNIV
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