[Title] Dropwise Condensation
[Speaker] Prof. John Rose
Research Professor
Queen Mary University of London,UK
[Date & Time] Friday, March 9, 2018 3:00 p.m.
[Place] I²CNER Hall, Ito campus, Kyushu University
[Abstract] Recent years have witnessed an explosion in the numbers of published research papers in heat transfer as well as in other fields. As a researcher, reviewer and editor over many years I believe that this has had some unfortunate effects. Many papers are not adequately reviewed, many are not read and the more important contributions are obscured; older work in particular is often overlooked resulting in unnecessary repetition (sometimes with errors). The situation is illustrated with reference to the topic dropwise condensation, an area in which I have a lifetime’s experience and which has seen a recent resurgence of interest. I had believed that virtually everything regarding heat-transfer measurements and theory of dropwise condensation was well known and understood, in particular the dependence of the very high heat-transfer coefficient on temperature difference and on vapor pressure, and that the only significant outstanding problem, crucial to industrial application, was durability of the dropwise mode of condensation. I am surprised and disappointed that many of the newer investigations seem to be unaware of much of what has gone before and has long been regarded by me as established and accepted. Much of the seminar will concern my earlier experimental and theoretical work with special reference to the
requirement for extremely high accuracy in the measurement of very small vapor-surface temperature difference as well as comments on the more recent investigations relating to condensation on “super hydrophobic” surfaces.