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The Effects of Rolling Motion Upon the Coefficient of Flow Boiling Heat Transfer

[+] Author Affiliations
Chong Chen, Pu-zhen Gao

Harbin Engineering University, Heilongjiang, China

Paper No. ICONE22-30433, pp. V005T17A037; 7 pages
doi:10.1115/ICONE22-30433
From:
  • 2014 22nd International Conference on Nuclear Engineering
  • Volume 5: Innovative Nuclear Power Plant Design and New Technology Application; Student Paper Competition
  • Prague, Czech Republic, July 7–11, 2014
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-4595-0
  • Copyright © 2014 by ASME

abstract

Experimental investigations on boiling heat transfer coefficients of boiling flows in rectangular narrow channel under rolling motion condition are performed. The cross section of the testing rectangular narrow channel is 2×40 mm, and the mechanical rolling thermal-hydraulic experimental facility is used in the experimental research of boiling heat transfer characteristics. Deionized water is used as the working fluid. The results show that the amplitude of boiling heat transfer coefficients of rectangular narrow channel increases with increasing rolling amplitude and rolling period of the rolling platform, the time average boiling heat transfer coefficients of test section in rolling motion are equal to the coefficients of the test section at equilibrium position, and with the increase of rolling amplitude and rolling period the time average boiling heat transfer coefficient almost unchanged. The amplitude of boiling heat transfer coefficients increases with increasing heat flux and flow rate, while decreases with the increase of system pressure. The curve of boiling heat transfer coefficient fluctuations of rectangular narrow channel is close to sine or cosine curve when the rolling period less than 15 seconds.

Copyright © 2014 by ASME

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