Experimental determination of transient wall temperature distributions close to growing vapor bubbles
Golobič, Iztok (Author), Petkovšek, Jure (Author), Bašelj, Matej (Author), Papež, Andrej (Author), Kenning, D.B.R. (Author)

URLURL - Presentation file, Visit http://dx.doi.org/10.1007/s00231-007-0295-y This link opens in a new window

Experiments were performed to study the spatio-temporal temperature variation underneath growing bubbles on a thin platinum heating foil in saturated and subcooled nucleate pool boiling of water at atmospheric pressure. The transient wall temperature distributions were recorded with spatial resolutionof 40 m by a high-speed infrared camera at intervals of 1 ms, synchronised with a high-speed video camera to record bubble motion. Examples are presented of the transient distributions of wall temperature, heat flux and heat transfer coefficient underneath bubbles growing with the fast and slow bubble detachment mechanisms in saturated and subcooled pool boiling. Comments are made on the evidence for and against particular mechanisms of heat transfer.

Keywords:segrevanje vode, prenos toplote, vrenje, parni mehurčki, gibanje mehurčkov, toplotni tok, nucleate pool boiling, vapor bubbles, bubble motion, heat transfer, heat flux
Work type:Not categorized (r6)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Number of pages:str. 857-866
Numbering:Vol. 45, Issue 7
ISSN on article:0947-7411
COBISS.SI-ID:10062363 Link is opened in a new window
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Record is a part of a proceedings

Title:6th international conference on boiling heat transfer
COBISS.SI-ID:1384284 This link opens in a new window

Record is a part of a journal

Title:Heat and mass transfer
Shortened title:Heat mass transf.
Publisher:Springer, Springer-Verl. New York
COBISS.SI-ID:2053915 This link opens in a new window

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