Convective Boiling in Microchannels
Posted 14 Jan, 2009 in Animations
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| Contributor(s) | Tannaz Harirchian, Suresh V. Garimella Purdue University |
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| Abstract | To develop a flow regime map for convective boiling in microchannels and to propose flow pattern-based models to predict the corresponding heat transfer coefficients, a thorough understanding of the existing flow patterns and their transitions is necessary. In the present work, high-speed photography is employed to observe the flow patterns in flow boiling of a dielectric liquid, FC-77, in parallel silicon microchannels of depth 400 μm and widths ranging from 100 to 5850 μm. A high-speed digital video camera is used to observe boiling patterns at frame rates ranging from 2000 to 24000 frames per second. |
| credits | Tannaz Harirchian and Suresh V. Garimella, Cooling Technologies Research Center, School of Mechanical Engineering and Birck Nanotechnology Center, Purdue University |
| citations | Harirchian, T. and Garimella, S. V., 2008b, “An Investigation of Flow Boiling Regimes in Microchannels of Different Sizes by Means of High-Speed Visualization,” 11th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, I-THERM, pp. 197-206. |
| publications | [1] Harirchian, T. and Garimella, S. V., 2008b, “An Investigation of Flow Boiling Regimes in Microchannels of Different Sizes by Means of High-Speed Visualization,” 11th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, I-THERM, pp. 197-206. [2] Harirchian, T. and Garimella, S. V., 2008d, “Flow Patterns during Convective Boiling in Microchannels,” Journal of Heat Transfer, 130 (8). [3] Harirchian, T. and Garimella, S. V., 2008a, “Microchannel Size Effects on Local Flow Boiling Heat Transfer to a Dielectric Fluid,” International Journal of Heat and Mass Transfer, 51, pp. 3724-3735. |
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