Experimental study on the start up performance of flat plate pulsating heat pipe |
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Authors: | Chaofa Hu Li Jia |
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Affiliation: | (1) Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Nengyuan Road, Wushan, Guangzhou, 510640, P.R. China |
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Abstract: | 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. |
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Keywords: | Plate pulsating heat pipe start-up power bottom heated top heated influence factors |
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