| dc.contributor.author |
Kolokotsa, D |
en |
| dc.contributor.author |
Yanniotis, S |
en |
| dc.date.accessioned |
2014-06-06T06:50:26Z |
|
| dc.date.available |
2014-06-06T06:50:26Z |
|
| dc.date.issued |
2010 |
en |
| dc.identifier.issn |
08941777 |
en |
| dc.identifier.uri |
http://dx.doi.org/10.1016/j.expthermflusci.2010.06.007 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/5036 |
|
| dc.subject |
Boiling |
en |
| dc.subject |
Bubbles |
en |
| dc.subject |
Centrifugal |
en |
| dc.subject |
Film flow |
en |
| dc.subject |
Nucleation |
en |
| dc.subject |
Rotating disc |
en |
| dc.subject.other |
Boiling |
en |
| dc.subject.other |
Bubbles |
en |
| dc.subject.other |
Centrifugal |
en |
| dc.subject.other |
Film flow |
en |
| dc.subject.other |
Rotating disc |
en |
| dc.subject.other |
Centrifugation |
en |
| dc.subject.other |
Liquid films |
en |
| dc.subject.other |
Nucleate boiling |
en |
| dc.subject.other |
Nucleation |
en |
| dc.subject.other |
Rotation |
en |
| dc.subject.other |
Visualization |
en |
| dc.subject.other |
Speed |
en |
| dc.title |
Experimental study of the boiling mechanism of a liquid film flowing on the surface of a rotating disc |
en |
| heal.type |
journalArticle |
en |
| heal.identifier.primary |
10.1016/j.expthermflusci.2010.06.007 |
en |
| heal.publicationDate |
2010 |
en |
| heal.abstract |
The boiling mechanism of a liquid film formed on the surface of a smooth horizontal rotating disc was studied using de-ionised water at 2l/min flow rate, boiling under vacuum at 40°C and 5-10°C wall superheat. Visualization experiments were carried out and video films were taken for rotational speeds from 0 to 1000rpm. It was observed that nucleate flow boiling prevails in the case of 0rpm (stationary disc). Nucleate boiling was also observed at 100 and 200rpm with the number of bubbles and the diameter of the bubbles decreasing as the rotational speed was increasing. At 600 and 1000rpm rotational speeds, vapor bubbles were not observed. The results of visual observation were in agreement with bubble growth analysis which showed that at heat flux values of 40kW/m2, conditions for bubble growth are favorable at low rotational speeds (<200rpm) but are unfavorable at high rotational speeds (1000rpm). © 2010 Elsevier Inc. |
en |
| heal.journalName |
Experimental Thermal and Fluid Science |
en |
| dc.identifier.issue |
8 |
en |
| dc.identifier.volume |
34 |
en |
| dc.identifier.doi |
10.1016/j.expthermflusci.2010.06.007 |
en |
| dc.identifier.spage |
1346 |
en |
| dc.identifier.epage |
1352 |
en |