Design And Performance Study On Heat Pipe Radiator With Connected Fins For A Integrated Desktop Its Heat Transfer Performance Study

With the development of Intergrated desktop integration, the heat dispersion of desktop has become the primary problem. Heat pipe radiator with connected fins for a intergrated desktop is a new radiator, consisting of radiator and Sintered heat pipe. Sintered heat pipe is one of the important components of composite radiator. In this paper, the current situation and development trend of the heat pipe radiator and technology are introduced. Flotherm is used to analyse thermal performance of the heat pipe radiator with connected fins. Main contents are summarized as follows:1. In this paper, heat transfer principle of the heat pipe radiator with connected fins for a intergrated desktop is introduced, and the whole structure is optimized. The heat pipe radiators with connected fins are designed corresponding to different kinds of factors, such as size of radiator, convective heat transfer coefficient, pressure drop, efficiency and heat transfer analysis of fins. The numerical simulation of heat transfer performance fins is used to determine the best thickness, spacing interval and material of fins for heat pipe under the help of software-Flotherm.2. The structure design and heat transfer process of Sintered heat pipe are analyzed. A testing system is established to verify the heat transfer performance of sintered heat pipe. The experimental results show that the best sequestration of the sintered heat pipe ranges from 1.0g to 1.2g.3. Establishing the thermal model,calculating and post-processing are accomplished by Flotherm.The results show that the temperature of the maximum power consumption element in the radiator is 62.4℃.The specific testing system is established to verify the heat transfer performance of element and the results show that its temperature is 55.24℃, which is consonant with the simulation. The most relative error between the simulated and experimental results is 12.96%. The cooling performance of the new radiator can fully meet the requirements.In this paper, the simulation and test method and experimental device design for heat pipe and radiator should be used as guideline for the future research.