A microchannel heat sink, integrated with pressure and temperature microsensors, is fabricated to study convective boiling under uniform heat flux boundary condition. Utilizing a wafer bond and etch back technology, the heat source, temperature and pressure sensors are separated from the fluid flow by a membrane only 1.5μm in thickness; thus, allowing good control of the thermal boundary conditions. Temperature and pressure distributions for various power levels and flow rates are measured while, simultaneously, the flow patterns are recorded. Single-phase flow results, compared with numerical simulations, confirm that the heat flux boundary condition is indeed nearly uniform. The sensor arrays, particularly for two-phase flow, provide the spatial and temporal dependence of both the temperature and pressures fields.
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ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels
June 19–21, 2006
Limerick, Ireland
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4760-8
PROCEEDINGS PAPER
Boundary Conditions and Integrated Sensors in Microchannel Convective Heat Transfer Available to Purchase
Man Lee,
Man Lee
Hong Kong University of Science and Technology, Kowloon, Hong Kong
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Luthur Siu Lin Cheung,
Luthur Siu Lin Cheung
University of Arizona, Tucson, AZ
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Yi-Kuen Lee,
Yi-Kuen Lee
Hong Kong University of Science and Technology, Kowloon, Hong Kong
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Yitshak Zohar
Yitshak Zohar
University of Arizona, Tucson, AZ
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Man Lee
Hong Kong University of Science and Technology, Kowloon, Hong Kong
Luthur Siu Lin Cheung
University of Arizona, Tucson, AZ
Yi-Kuen Lee
Hong Kong University of Science and Technology, Kowloon, Hong Kong
Yitshak Zohar
University of Arizona, Tucson, AZ
Paper No:
ICNMM2006-96117, pp. 1365-1371; 7 pages
Published Online:
September 15, 2008
Citation
Lee, M, Cheung, LSL, Lee, Y, & Zohar, Y. "Boundary Conditions and Integrated Sensors in Microchannel Convective Heat Transfer." Proceedings of the ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 4th International Conference on Nanochannels, Microchannels, and Minichannels, Parts A and B. Limerick, Ireland. June 19–21, 2006. pp. 1365-1371. ASME. https://doi.org/10.1115/ICNMM2006-96117
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