Experimental Study on the Start Up Performance of Flat Plate Pulsating Heat Pipe  

作　　者：Chaofa Hu Li Jia 

机构地区：[1]School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong UniversityBeijing 100044, China

出　　处：《Journal of Thermal Science》2011年第2期150-154,共5页热科学学报（英文版）

基　　金：support of this work by the National Natural Science Foundation of China (No.50776006)

摘　　要：An experimental system of flat plate pulsating heat pipe was established and experimental research was carried out in this system to know the mechanism of heat transfer, start-up and operating characteristics. The factors, such as filling rate, heating power, heating method etc, which have great influence on the thermal performance of the plate pulsating heat pipe were discussed. The results indicate that heating power and filling rate are the important factors for the start-up of the plate pulsating heat pipe. The different start-up power is needed with different filling rate, and the start-up of the heat pipe in case of bottom heated is much easier than that of top heated. Increasing the heating power and enlarging the heating area can make the start-up easier. Heating power can also affect the start-up time of heat pipe under the condition of bottom heated, while it does not have some influence to the heat pipe of top heated. The thermal resistance of plate pulsating heat pipe is related with the heating power, and the higher the heating power is, the smaller the thermal resistance is. But the best filling rate which the heat pipe needs is different with different heating methods, and the performance of the heat pipe in the case of bottom heated is better than the others.

关 键 词：Plate pulsating heat pipe start-up power bottom heated top heated influence factors 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TP273[动力工程及工程热物理—热能工程]