In this paper, the experimental investigation on friction factor and heat transfer of single phase liquid flow and two-phase boiling flow in single zigzag micro-channel with micro-orifice at inlet has been conducted. The dimension of the micro-orifice is 1mm×0.227mm×0.25mm. The experiment was conducted in copper rectangle zigzag micro-channel with the hydraulic diameter of 0.321mm and the length of 29 mm. The experimental results of friction factor and heat transfer coefficient were provided and the effect of the micro-orifice was discussed. It was found that the friction factor of flow in zigzag micro-channel deviated largely from the predictive value in the laminar flow, while it coincided well with the correlation for turbulent flow. In addition, the variation of local heat transfer coefficient showed that the inlet restrictor has significant effect on heat transfer of boiling flow in micro-channel.
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ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5450-1
PROCEEDINGS PAPER
The Pressure Drop and Heat Transfer of Flow in Zigzag Micro-Channel With Micro-Orifice Available to Purchase
Chengyun Wu,
Chengyun Wu
Chinese Academy of Sciences, Beijing; Xi’an Jiatong University, Xi’an, China
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Hongbo Xu,
Hongbo Xu
Chinese Academy of Sciences, Beijing, China
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Changqing Tian
Changqing Tian
Chinese Academy of Sciences, Beijing, China
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Chengyun Wu
Chinese Academy of Sciences, Beijing; Xi’an Jiatong University, Xi’an, China
Hongbo Xu
Chinese Academy of Sciences, Beijing, China
Changqing Tian
Chinese Academy of Sciences, Beijing, China
Paper No:
FEDSM-ICNMM2010-30349, pp. 613-623; 11 pages
Published Online:
March 1, 2011
Citation
Wu, C, Xu, H, & Tian, C. "The Pressure Drop and Heat Transfer of Flow in Zigzag Micro-Channel With Micro-Orifice." Proceedings of the ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels: Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 613-623. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30349
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