Flow and heat transfer characteristics of high-pressure water flowing in a vertical upward smooth tube at low mass flux conditions

Flow and heat transfer characteristics of high-pressure water flowing in a vertical upward smooth... Applied Thermal Engineering 102 (2016) 391–401 Contents lists available at ScienceDirect Applied Thermal Engineering journal homepage: www.elsevier.com/locate/apthermeng Research Paper Flow and heat transfer characteristics of high-pressure water flowing in a vertical upward smooth tube at low mass flux conditions Zhi Shen, Dong Yang , Haiyan Xie, Xin Nie, Wanyu Liu, Siyang Wang State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China highl i ghts graphical a bstrac t The influence of mass flux on the occurrence of dryout is non- monotonic. DNB dominants heat transfer deterioration at near critical pressures. Abnormal heat transfer occurs within the pseudo critical region. Three correlations all underestimate the frictional pressure drop. article i nfo abstract Article history: An experiment that covered a wide range of parameters was conducted to investigate the flow and heat Received 16 December 2015 transfer characteristics of water flowing in a vertical upward smooth tube. The effects of the operating Accepted 28 March 2016 parameters on flow and heat transfer were analyzed, and the corresponding empirical correlations were Available online 31 March 2016 presented. Results show that at subcritical pressures, dryout dominates heat transfer deterioration. This phenomenon can be delayed by reducing http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Thermal Engineering Elsevier

Flow and heat transfer characteristics of high-pressure water flowing in a vertical upward smooth tube at low mass flux conditions

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
1359-4311
eISSN
1873-5606
D.O.I.
10.1016/j.applthermaleng.2016.03.150
Publisher site
See Article on Publisher Site

Abstract

Applied Thermal Engineering 102 (2016) 391–401 Contents lists available at ScienceDirect Applied Thermal Engineering journal homepage: www.elsevier.com/locate/apthermeng Research Paper Flow and heat transfer characteristics of high-pressure water flowing in a vertical upward smooth tube at low mass flux conditions Zhi Shen, Dong Yang , Haiyan Xie, Xin Nie, Wanyu Liu, Siyang Wang State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China highl i ghts graphical a bstrac t The influence of mass flux on the occurrence of dryout is non- monotonic. DNB dominants heat transfer deterioration at near critical pressures. Abnormal heat transfer occurs within the pseudo critical region. Three correlations all underestimate the frictional pressure drop. article i nfo abstract Article history: An experiment that covered a wide range of parameters was conducted to investigate the flow and heat Received 16 December 2015 transfer characteristics of water flowing in a vertical upward smooth tube. The effects of the operating Accepted 28 March 2016 parameters on flow and heat transfer were analyzed, and the corresponding empirical correlations were Available online 31 March 2016 presented. Results show that at subcritical pressures, dryout dominates heat transfer deterioration. This phenomenon can be delayed by reducing

Journal

Applied Thermal EngineeringElsevier

Published: Jun 5, 2016

References

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