Heat Transfer Analysis And Numerical Simulation On Heat Pipe Radiator With Rectangular Fins

Being directed at the more and more frequent use of the integration in the modern electronic device and the increasing thermal current density, heat transfer analysis and design on heat pipe radiator with rectangular fins is studied to realize high heat reflux exchanging from the high-power electronic equipment on the calorific module based on previous experimental and theoretical studies.According to characteristics of the heat pipe radiator with rectangular fins, the heat-transfer mechanism and optimization of the whole structure is analyzed, which contains researches as follows: analysis and calculation on the heat resistance of each part of gravity heat pipe. A detailed heat transfer study on the heat pipe radiator with rectangular fins helps to establish the heat transfer model of the whole radiators. The whole heat-sinking capability of the heat pipe radiator with rectangular fins under different structural parameters is calculated through a programmed general project approach. The heat pipe radiator model is designed according to different radiating conditions and structural parameter. The numerical simulation of the air side fins heat transfer performance under different numbers of heat pipes, different layout modes of heat pipes, different thickness of heat pipes, different spacing interval of fins, different wind speeds, different ambient temperatures, is carried out with the help of the CFD software-FLUENT. Based on the field synergy principle, the rules of how elements influence on the radiating capability of the heat pipes radiators and the optimum structure program is worked out after analyzing on radiating characteristic of the heat transfer radiators working in different conditions. The results, well corresponded with the experimental results, is gained from the numerical modeling of the established experiment model by FLUENT, so that the validity of theoretical analysis and numerical method is checked. The simulative study of heat transfer is carried out through applying ICEPACK, special electronic device thermal analysis software. The most relative error between the simulated results and the theoretical results is 11.7%. The radiating effect of the optimized radiator is greatly improved, and the other performance prediction is also taken in details. In the modern times, a certain rule and reference value for practical application and characteristic analysis about the similar sort heat pipe radiators which work under the high density of heat transmission will be found in such researches.