A novel time strip flow visualisation technique for investigation of intermittent dewetting and dryout in elongated bubble flow in a microchannel evaporator

International Journal of Heat and Mass Transfer

Volumn 53, Issue 21-22, 2010, Pages 4809-4818

  Borhani, Navid ^a   Agostini, Bruno ^b   Thome, John Richard ^a  

^a EPFL   (Switzerland)

^b ABB SWITZERLAND LTD   (Switzerland)

Author keywords

Dryout; Flow visualisation; Microchannel evaporator

Indexed keywords

ADJACENT CHANNELS; BUBBLE FLOW; CHANNEL SURFACE; CHANNEL WALL; CRITICAL AMPLITUDES; DE-WETTING; DRY SPOT; DRY-OUT; DRYOUT MECHANISM; EVAPORATING LIQUID FILM; FIN WIDTHS; FLOW BOILING; FLOW VISUALISATION; HIGH-SPEED DIGITAL CAMERAS; IMAGE SEQUENCE; LOW MASS; MASS VELOCITY; METASTABLE LIQUID; RE-WETTING; RIVULET FLOW; TIME-SCALES;

CAMERAS; EVAPORATORS; FILM GROWTH; FLOW VISUALIZATION; HEAT EXCHANGERS; HEAT FLUX; HEAT TRANSFER; LIQUID FILMS;

MICROCHANNELS;

EID: 77955515160     PISSN: 00179310     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ijheatmasstransfer.2010.06.011     Document Type: Article

References (27)

1. Bowers M.B., Mudawar I. High flux boiling in low flow rate, low pressure drop mini-channel and micro-channel heat sinks. Int. J. Heat Mass Transfer 1994, 37:321-332.
2. Wojtan L., Revellin R., Thome J.R. Investigation of critical heat flux in single uniformly heated microchannels. Exp. Therm. Fluid Sci. 2006, 30:765-774.
3. Bergles A.E., Kandlikar S.G. On the nature of critical heat flux in microchannels. J. Heat Transfer 2005, 127:101-107.
4. Revellin R., Thome J.R. A theoretical model for the prediction of the critical heat flux in heated microchannels. Int. J. Heat Mass Transfer 2008, 51:1216-1225.
5. Collier J.G., Thome J.R. Convective Boiling and Condensation 1994, Oxford University Press, Section 9.7.2. 3rd ed.
6. Agostini B., Thome J.R., Fabbri M., Michel B., Calmi D., Kloter U. High heat flux flow boiling in silicon multi-microchannels - Part II: heat transfer characteristics of refrigerant R245fa. Int. J. Heat Mass Transfer 2008, 51:5415-5425.
7. Thome J.R., Dupont V., Jacobi A.M. Heat transfer model for evaporation in microchannels - Part I: presentation of the model. Int. J. Heat Mass Transfer 2004, 47:3375-3385.
8. Hetsroni G., Mosyak A., Segal Z. Nonuniform temperature distribution in electronic devices cooled by flow in parallel microchannels. IEEE Trans. Compon. Packag. Technol. 2001, 24:16-23.
9. Hetsroni G., Mosyak A., Segal Z., Pogrebnyak E. Two-phase flow patterns in parallel micro-channels. Int. J. Multiphase Flow 2003, 29:341-360.
10. S.G. Kandlikar, M.E. Steinke, S. Tian, L.A. Campbell, High-speed photographic observation of flow boiling of water in parallel mini-channels, in: Proceedings of the ASME National Heat Transfer Conference, Anaheim, California, June 10-12, 2001, Paper No. NHTC01-11262.
11. P. Balasubramanian, S.G. Kandlikar, High-speed photographic observation of flow patterns during flow boiling in single rectangular mini-channel, in: Proceedings of the ASME Summer Heat Transfer Conference, Las Vegas, Nevada, July 21-23, 2003, Paper No. HT2003-47175.
12. de Gennes P-G., Brochard-Wyart F., Quéré D. Capillarity and Wetting Phenomena - Drops, Bubbles, Pearls and Waves 2004, Springer-Verlag.
13. Taylor G.I., Michael D.H. On making holes in a sheet of fluid. J. Fluid Mech. 1973, 58:625-640.
14. Kheshgi H.S., Scriven L.E. Dewetting: nucleation and growth of dry regions. Chem. Eng. Sci. 1991, 46:519-526.
15. Sharma A., Ruckenstein E. Dewetting of solids by the formation of holes in macroscopic liquid films. J. Colloid Interface Sci. 1989, 133:358-368.
16. Seemann R., Herminghaus S., Jacobs K. Dewetting patterns and molecular forces: a reconciliation. Phys. Rev. Lett. 2001, 86:5534-5537.
17. Redon C., Brochard-Wyart F., Rondelez F. Dynamics of dewetting. Phys. Rev. Lett. 1991, 66:715-718.
18. Callegari G., Calvo A., Hulin J.P. Dewetting processes in a cylindrical geometry. Eur. Phys. J. E 2005, 16:283-290.
19. Thiele U., Velarde M.G., Neuffer K. Dewetting: film rupture by nucleation in the spinodal regime. Phys. Rev. Lett. 2001, 87:016104.
20. Becker J., Grün G., Seemann R., Mantz H., Jacobs K., Mecke K.R., Blossey R. Complex dewetting scenarios captured by thin-film models. Nature Mater. 2003, 2:59-63.
21. Samid-Merzel N., Lipson S.G., Tannhauser D.S. Pattern formation in drying water films. Phys. Rev. E 1998, 57:2906-2913.
22. Reiter G. Dewetting of thin polymer films. Phys. Rev. Lett. 1992, 68:75-78.
23. Ruckenstein E., Jain R.K. Spontaneous rupture of thin liquid films. J. Chem. Soc. Faraday Trans. 1974, 2(70):132-147.
24. Brochard-Wyart F., Daillant J. Drying of solids wetted by thin films. Can. J. Phys. 1990, 68:1084-1088.
25. Thiele U., Mertig M., Pompe W. Dewetting of an evaporating thin liquid film: heterogeneous nucleation and surface instability. Phys. Rev. Lett. 1998, 80:2869-2872.
26. Agostini B., Thome J.R., Fabbri M., Michel B., Calmi D., Kloter U. High heat flux flow boiling in silicon multi-microchannels - Part I: heat transfer characteristics of refrigerant R236fa. Int. J. Heat Mass Transfer 2008, 51:5400-5414.
27. Herminghaus S. Roughness-induced non-wetting. Europhys. Lett. 2000, 52:165-170.