In present investigation, the critical emitting heat flux was measured and analyzed corresponding to liquid explosive emission phenomenon occurring in a capillary tube, as well as the temperature outside tube wall. The asymmetrical distribution of two non-heated side sections of the tube had significant effect on the explosive emission. Two dimensionless parameters, geometrical and thermal asymmetry, and the asymmetrical function were introduced to describe the general asymmetrical effect based on the experimental results of tubes with different tube inner diameters, heating length and heating systems. For a larger thermal asymmetry, the critical emitting heat flux decreased significantly as geometrical asymmetry became larger. For a smaller thermal asymmetry, geometrical asymmetry has a little effect on the critical emitting heat flux.
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ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
June 22–24, 2009
Pohang, South Korea
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4349-9
PROCEEDINGS PAPER
Asymmetrical End Effect on Boiling Explosive Emission in Micro Capillary Tubes
Xiao-Feng Peng
Xiao-Feng Peng
Tsinghua University, Beijing, China
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Di Wu
Tsinghua University, Beijing, China
Xiao-Feng Peng
Tsinghua University, Beijing, China
Paper No:
ICNMM2009-82177, pp. 69-74; 6 pages
Published Online:
September 21, 2010
Citation
Wu, D, & Peng, X. "Asymmetrical End Effect on Boiling Explosive Emission in Micro Capillary Tubes." Proceedings of the ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels. Pohang, South Korea. June 22–24, 2009. pp. 69-74. ASME. https://doi.org/10.1115/ICNMM2009-82177
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