EPJ Web of Conferences
Volume 92, 2015EFM14 – Experimental Fluid Mechanics 2014
|Number of page(s)||6|
|Published online||06 May 2015|
Hysteresis of boiling for different tunnel-pore surfaces
Kielce University of Technology, Department of Mechanics, Al. Tysiaclecia P.P.7, 25-314 Kielce, Poland
a Corresponding author: firstname.lastname@example.org
Published online: 6 May 2015
Analysis of boiling hysteresis on structured surfaces covered with perforated foil is proposed. Hysteresis is an adverse phenomenon, preventing high heat flux systems from thermal stabilization, characterized by a boiling curve variation at an increase and decrease of heat flux density. Experimental data were discussed for three kinds of enhanced surfaces: tunnel structures (TS), narrow tunnel structures (NTS) and mini-fins covered with the copper wire net (NTS-L). The experiments were carried out with water, R-123 and FC-72 at atmospheric pressure. A detailed analysis of the measurement results identified several cases of type I, II and III for TS, NTS and NTS-L surfaces.
© Owned by the authors, published by EDP Sciences, 2015
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