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Shape Characteristics and Condensation Heat Transfer of Supersonic Steam Jet in Subcooled Water

[+] Author Affiliations
Wang Fangnian, Chen Yaodong, Bai Ning, Xing Mian, Meng Zhaocan, Shen Feng

SPICRI, Beijing, China

Qin Huan

Harbin Engineering University, Harbin, China

Paper No. ICONE25-67604, pp. V006T08A102; 7 pages
doi:10.1115/ICONE25-67604
From:
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 6: Thermal-Hydraulics
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5784-7
  • Copyright © 2017 by ASME

abstract

The shape characteristics and direct contact condensation (DCC) heat transfer of submerged supersonic steam jet were investigated. One of the shape identification methods is the DCC shape regime map as a function of nozzle exit pressure, mass flux and pool water temperature, another one is the Look Up Table. Then based on the theoretical analysis, the new basic expressions of supersonic steam jet dimensionless penetration length, maximum expansion ratio, and heat transfer correlations were given, which were in terms of Ma number and Ja number. The correlations were nonlinearly fitted and validated well against the experimental data form open literatures. The discrepancies of penetration length and maximum expansion ratio between predicted and experimental values were within ±25% and ±12% respectively. Supersonic steam jet DCC heat transfer is feasible to be calculated via the identification of steam jet shape and selection of the corresponding shape and heat transfer correlations.

Copyright © 2017 by ASME

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