本實驗利用水力直徑為86.3μm的平行矽質微流道，研究微流道之雙相流與沸騰熱傳。透過對氣泡成長、流譜與壓降的分析，了解平形矽質微流道於小尺度所隱含之物理現象。另一方面，從實驗上發現行形微流道壓降之發散會誘發平行微流道系統不穩定現象的產生、微流道裡的回流蒸氣會影響氣泡的成長機制、壁過熱度會受微流道加熱面粗糙度的影響。

The present study investigates experimentally boiling heat transfer and two-phase flow in a micro heat sink with fifteen parallel micro-channels of 86.3μm hydraulic diameters under various mass flux and heat flux conditions. Bubble nucleation, bubble growth, two phase patterns and pressure drop are recorder and analyzed. Studying these phenomena is the key to understand the boiling process in the parallel micro-channels. In addition, it is found that the divergence pressure drop oscillation induces the instability of parallel micro-channels and the reversed flow affects the mode of bubble growth in slug flow. In addition, the wall superheat is dependent on the roughness of the heating surface parallel micro-channels.

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