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Please use this identifier to cite or link to this item: http://dspace.unimap.edu.my:80/xmlui/handle/123456789/7218

Title: Visual studies on film boiling
Authors: Suhaimi, Illias
Muhammad Asri, Idris
Muhamad Saisuldin, Abdul Manan
H. Azmi
Mohd Fathullah, Ghazali
Keywords: Film boiling;Droplet;Heated surface;Heat -- Transmission;Drops
Issue Date: 11-Oct-2009
Publisher: Universiti Malaysia Perlis
Citation: p.5F 1 - 5F 4
Series/Report no.: Proceedings of International Conference on Applications and Design in Mechanical Engineering 2009 (iCADME 2009)
Abstract: The purpose of this research is to study and examine the droplet bounding phenomena on carbon heated surface during film-boiling period, which occur when a water droplet collided with the heated surface at a very high temperature (400ºC-500ºC). When the surface temperature reaches a maximum value, the critical superheated surface is suddenly covered with a vapor layer. Because of the vapor layer’s lower thermal conductivity, this vapor layer insulates the surface. This condition of vapor film insulating the surface from the liquid characterizes film-boiling. The carbon boiling curve that obtained from the experiment is examined in order to study the relation between carbon boiling curve and the evaporation lifetime curve of a droplet. According to the Leidenfrost phenomena, liquids cannot touch a surface with a temperature above their boiling point because evaporation forms a cushion of vapor preventing contact. The higher the surface’s temperature above the boiling point of the liquid, the more rapid evaporation occurs. The carbon material was heated in order to study this bounding phenomenon in the droplet collision boiling system.
Description: Organized by School of Mechatronic Engineering (UniMAP) & co-organized by The Institution of Engineering Malaysia (IEM), 11th - 13th October 2009 at Batu Feringhi, Penang, Malaysia.
URI: http://hdl.handle.net/123456789/7218
ISBN: 978-967-5415-07-4
Appears in Collections:Muhammad Asri Idris, Dr.
Muhammad Asri Idris, Dr.
Conference Papers

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