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Study of two-phase flow regime identification in horizontal tube bundles under vertical upward cross-flow condition using wavelet transform

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Abstract

A wavelet-transform based approach for flow regime identification in horizontal tube bundles under vertical upward cross-flow condition was presented. Tests on two-phase flow pattern of R134a were conducted under low mass velocity and flow boiling conditions over ranges of mass flux 4–25 kg/m2·s, vapor quality 0.02–0.90. Time series of differential pressure fluctuations were measured and analyzed with discrete wavelet transform. Different time-scale characteristics in bubbly flow, churn flow and annular flow were analyzed. The wavelet energy distributions over scales were found to be appropriate for flow regime identification. Based on the wavelet energy distribution over characteristic scales, a criterion of flow regime identification was proposed. The comparison with experiment results show that it is feasible to use the discrete wavelet transform as the tool of flow regime identification in horizontal tube bundles under vertical upward cross-flow condition.

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References

  1. Robinson M, Thome J R. Local bundle boiling heat transfer coefficients on a plain tube bundle. HVAC&R Research, 2004, 10(1): 34–51

    Google Scholar 

  2. Huang Xinghua, Wang Qijie, Lu Zhen, et al. Predication of the performance of flooded refrigerant evaporators based on the distributed parameter model. Journal of Shanghai Jiao Tong University, 2004, 38(7): 1164–1169 (in Chinese)

    Google Scholar 

  3. Browne M W, Bansal P K. Heat transfer characteristics of boiling phenomenon in flooded refrigerant evaporators. Applied Thermal Engineering, 1999, 19: 595–624

    Article  Google Scholar 

  4. Elperin T, Klochko M. Flow regime identification in a twophase flow using wavelet transform. Experiments in Fluids, 2002, 32: 674–682

    Google Scholar 

  5. Jia Feng, Huang Xinghua, Wang Li, et al. Experimental study on the two-phase flow pattern of R134a in a horizontal tube bundles under vertical upward cross-flow conditions. Journal of Shanghai Jiaotong University, 2006, 40(2): 346–350 (in Chinese)

    Google Scholar 

  6. Chen Gong, Huang Zhiyao, Wang Baoliang, Li Haiqing. Flow regimes identification in horizontal pipe using wavelet transform. Chinese Journal of Scientific Instrument, 1999, 20(2): 117–120 (in Chinese)

    MATH  Google Scholar 

  7. Ji Haifeng, Huang Zhiyao, Wu Xianguo, et al. Application of wavelets transform to analysis of multiphase flow. Petrochemical Technology, 2001, 30(2): 126–130 (in Chinese)

    Google Scholar 

  8. Qin Qianqing, Yong Zongkai. Practical Wavelet Analysis. Xi’an: Xidian University Press, 1994 (in Chinese)

    Google Scholar 

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Correspondence to Xinghua Huang.

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Translated from Journal of Shanghai Jiaotong University, 2007, 41(3): 337–341, 346 [译自: 上海交通大学学报]

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Huang, X., Wang, L. & Jia, F. Study of two-phase flow regime identification in horizontal tube bundles under vertical upward cross-flow condition using wavelet transform. Front. Energy Power Eng. China 2, 333–338 (2008). https://doi.org/10.1007/s11708-008-0043-0

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  • DOI: https://doi.org/10.1007/s11708-008-0043-0

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