| Summary: | 碩士 === 國立清華大學 === 工程與系統科學系 === 91 === The research about this thesis is analysis of miniature heat pipe with many kinds of operation conditions. They are containing heat pipe length, diameter, operation temperature and fluid inventory. The miniature heat pipe diameter varied from 3mm, 5mm, 6mm to 8mm, the miniature heat pipe length was 100mm, 150mm, 200mm and 300mm respectively. Two operation temperatures with 40 oC and 50 oC were introduced in this experiment. And we developed the “Two-Phase Cooler Simulation Program” via derived a series of miniature heat pipe theory equations and used Visual Basic Language. One can know the optimum design of the miniature heat pipe quality quickly from the database of the program.
In heat pipe manufactures, we have four variable types of diameter and length, and have two operation temperatures in experiment.
From the experiment results analysis, the maximum heat transfer rate is raise with increasing miniature heat pipe length, diameter and operation temperature.
Compare with program and experiment results, the relative error value of mean maximum heat transfer rate and simulation at each sample are about 10%, it is said that simulation program is very match the miniature heat pipe experiment results.
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