Abstract
To enable high-heat-flux heat removal from the heated surface, the performance of the method using a porous-micro-channel (a small channel containing a porous metal plate) as the flow channel of coolant was investigated experimentally. The main experimental parameters were the channel size, mass flux and liquid subcooling. It was shown that the nucleate boiling heat transfer is enhanced if the porous plate is placed in the flow channel. It was also found that the micro-bubble emission boiling (MEB) takes place even in the porous-micro-channel if the mass flux and liquid subcooling are high enough. In addition, the flow oscillation that was frequently encountered in the normal channel containing no porous plate did not occur in the porous-micro-channel within the experimental conditions tested in this work. It was considered that the porous-micro-channel is useful to ensure high-heat-flux heat removal without significant flow oscillation.
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