Pool boiling visualization on open microchannel surfaces
Kielce University of Technology, Department of Mechanics, al. 1000-lecia Państwa Polskiego 7, PL-25-314 Kielce, Poland
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Published online: 12 May 2017
The paper presents visualization investigations into pool boiling heat transfer for open minichannel surfaces. The experiments were carried out wih saturated water at atmospheric pressure. Parallel microchannels fabricated by machining were about 0.3 mm wide and 0.2 to 0.4 mm deep. High-speed videos were used as an aid to understanding the heat transfer mechanism. The visualization study aimed at identifying nucleation sites of the departing bubbles and determining their diameters and frequency at various superheats.
© The Authors, published by EDP Sciences, 2017
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