A pulsating heat pipe calculation method of liquid metal mixed working medium

By constructing a computational method for pulsating heat pipes with liquid metal mixed working fluids, the problem of simulating the heat transfer and flow behavior of liquid metal mixed working fluids in pulsating heat pipes is solved, realizing efficient heat transfer performance analysis and visualization results, and providing a reliable solution for the thermal management of high-power electronic devices.

CN122414044APending Publication Date: 2026-07-17DALIAN UNIV OF TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202610562157.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot accurately simulate the complex heat transfer and flow behavior of liquid metal mixed working fluids in pulsating heat pipes, and traditional working fluids cannot achieve rapid heat transport under high heat loads, which limits the application of pulsating heat pipes in extreme heat dissipation scenarios.

Method used

A calculation method for pulsating heat pipes with liquid metal mixed working fluids is constructed. By iteratively solving the liquid-bomb energy equation and the vapor-bomb energy equation, the liquid film thickness, flow velocity and length are calculated to obtain the convective heat transfer coefficients of liquid metal and conventional working fluids, and the temperature distribution and overall heat transfer performance of the liquid-bomb are analyzed.

Benefits of technology

It enables efficient heat transfer performance analysis of pulsating heat pipes with liquid metal mixed working fluid, applicable to different structural sizes and working fluid distributions, outputting intuitive and visual results, and supporting structural design and performance optimization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122414044A_ABST
    Figure CN122414044A_ABST
Patent Text Reader

Abstract

The application discloses a kind of liquid metal mixed working medium's pulsating heat pipe calculation method, comprising: obtaining size parameter construction model, determine working medium kind and property parameter;Preset initial parameter, according to liquid metal filling position construction liquid bullet momentum equation calculates liquid bullet displacement;Based on initial parameter iterative solution equation group formed by vapor bullet energy equation, mass flow and pressure relationship and temperature and pressure function relationship, obtain vapor bullet pressure and temperature;According to vapor bullet temperature and liquid bullet displacement determine liquid film thickness, flow velocity and length, calculate evaporation condensation heat transfer and update liquid bullet length;According to working medium kind, respectively establish conventional working medium and liquid metal liquid bullet energy equation, solve temperature distribution and obtain convective heat transfer coefficient, calculate incoming and outgoing sensible heat quantity;According to evaporation condensation heat transfer and sensible heat quantity calculate latent heat, sensible heat and total heat transfer and output.The application can simulate flow heat transfer characteristics, reveal heat transfer mechanism, provide guidance for pulsating heat pipe design optimization.
Need to check novelty before this filing date? Find Prior Art