| EPSRC Reference: |
GR/S41821/01 |
| Title: |
A fundamental investigation of the mechanism of the Critical Heat Flux including the effect of an electric field |
| Principal Investigator: |
Sefiane, Professor K |
| Other Investigators: |
|
| Researcher Co-Investigators: |
|
| Project Partners: |
|
| Department: |
Sch of Engineering |
| Organisation: |
University of Edinburgh |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
16 February 2004 |
Ends: |
15 February 2007 |
Value (£): |
125,009
|
| EPSRC Research Topic Classifications: |
|
| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
|
|
| Related Grants: |
|
| Panel History: |
|
|
Summary on Grant Application Form |
|
The ability of engineers to predict and increase the magnitute of the critical heat flux (CHF) is of paramount importance in many technological applications. However, this requires correct understanding of the mechanism leading to CHF. Currently, there is considerable controversy amongst researchers on the controlling mechanism(s) and the various proposed models are not generally convincing or applicable. Past work has identified the role played by the trible line region and the contact line between solid, liquid and vapour and in modelling the CHIP mechanism, the applicants propose that the controlling mechanism leading to the boiling crisis is due to instabilities occuring at the trible line. Instabilities responsible for such a mechanism originate from intense evaporation rates (recoil instability) and thermal variations (thermocapilary instability). In this theoretical and experimental investigation, the applicants will endeavour to model, develop and verify the new proposed mechanism for CHF, i.e. that it is caused by the recoil and thermocapilary instabilities. The use of a third, externally imposed and controlled instability caused by an electrostatic field across the fluid domain will be modelled. This will provide the methodology for predicting the electrohydrodynamic enhancement of the CHF, provide new data and assist in the verification of the proposed new mechanism for the boiling crisis. The modelling resullts will be compared with detailed and highly accurate experimental
|
|
Key Findings |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Potential use in non-academic contexts |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
|
Impacts |
|
| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
|
| Date Materialised |
|
|
|
|
Sectors submitted by the Researcher |
|
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
|
| Project URL: |
|
| Further Information: |
|
| Organisation Website: |
http://www.ed.ac.uk |