https://doi.org/10.1051/epjconf/20159202060
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: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 6 May 2015
Abstract
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.
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