Research On Composite Heat Dissipation System Based On Foam Metal Copper

With the development of industry and the need for intelligence,information,and portability,there is a greater demand for various electronic components and the capacity of energy storage materials.Whether it is the requirement of material availability or the expectation of safety,the assistance of the temperature control system is indispensable.This makes it more meaningful to study more efficient heat dissipation systems.At present,the research of foam metal has been widely carried out and there are abundant steamers.It is moving from the laboratory stage to large-scale application,but due to its complicated preparation and high price.From the perspective of energy efficiency,there are still many problems to be solved.This paper analyzes the effect of pore morphology on heat dissipation from a microscopic point of view by identifying the foamed metal base materials used and establishing the relevant relationships.Based on this,a simulation thermal model was established and a composite heat dissipation system based on foam metal was designed.The heat dissipation effects of different structural shapes and different air cooling wind speeds were analyzed.The results were validated by experiments and finally optimized through energy efficiency analysis.Foam copper composite heat dissipation system.The specific research content and conclusions are as follows:1.Considering the actual heat dissipation effect,the foam metal needs to use proper hole properties.The heat transfer performance of the open-cell foam metal is theoretically far superior to the closed-cell foam metal.In terms of the selection of base materials,foam copper is prepared more widely from the perspective of ease of use and functionality.It is also safer to withstand explosions due to impact,and other comparative materials have more than 29 degrees of heat dissipation.Therefore,copper foam metal was selected as the material of the foam metal composite heat dissipation system.The 95% porosity foam copper has better thermal performance than the 98% porosity foam copper and the 90% porosity foam copper.Therefore,the 95% porosity foam copper is used to design the foam copper composite heat dissipation system.2.Established the basic form of the composite foam copper heat dissipation system and follow-up experimental ideas.The heat sink is made of various forms of foam metal and copper plates.Among these,the copper sheet takes up the role of enhancing the mechanical properties of the foamed copper composite heat sink and facilitates disassembly by changing the ease of use.At the same time,the assembly and test steps of the experimental device related to the evaluation and treatment of foamed copper composite heat sinks were demonstrated.At the same time,an experiment was conducted on a foamed copper composite board that completely covered copper foam,and the convection heat transfer of the foamed copper under this set of conditions was determined,and the specific behavior of the convective heat transfer of the foamed copper in this environment was established and mathematically simulated.The result of the correlation determines the correlation coefficient.3.For the flow field analysis and thermal analysis of the foamed copper composite heat dissipation system,the rapid stability of the flow field was determined,and the influence of the pressure field was also confirmed.In the subsequent simulation optimization process,the influence of the pressure field was simplified in order to simplify the calculation.In addition,through calculations,it can be seen that the flow field conditions of a series of inlet wind speed flow fields can be determined based on the difference in Reynolds number.The approximate shape of the flow field is between the transition zone and the turbulence zone,and the KE is applied according to the flow field conditions.The turbulence model coupled with the low Reynolds number KE is coupled with a heat transfer model for simulation modeling.4.This article finally established the original assembly structure and working environment of the copper foam composite heat dissipation system.Finally,a comparison was made between the three heat-dissipating fins of the metal foam structure and the effect on the entire heat dissipation system.Finally,the conclusion that the strip-shaped design was the optimal design was obtained.At the same time,it can be optimized through various wind speeds and the proportion of copper foam on the board.The final design proposal determined the final wind speed of 1.33m/s and the strip width of 1.6-1.8 as the optimal conclusion5.A thermal simulation model with good reusability has been experimentally verified.It can be used to design and optimize the cooling system after conditions change,and has better scalability.