Effects of mechanical vibration on critical heat flux in vertical annulus tube

被引：23
作者：
Kim, Dae Hun [1 ]
Lee, Yong Ho [1 ]
Chang, Soon Heung [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Taejon 305701, South Korea
来源：
NUCLEAR ENGINEERING AND DESIGN | 2007年 / 237卷 / 09期
关键词：
D O I：
10.1016/j.nucengdes.2006.11.002
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The effects of mechanical vibrations on critical heat flux (CHF) are examined in this study at atmospheric pressure in vertical annulus tube under electrically heated condition. Vibration of heating rod was increased as flow regime changed from subcooled region to bubbly region. CHF was increased by mechanical vibration up to 16.4%. Vibration amplitude was one of the effective parameters on CHF enhancement. It seems to come from turbulence increasing and increment of deposition of droplet from the liquid film by vibration. Vibration is an effective method for heat transfer enhancement as well as CHF enhancement. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：982 / 987
页数：6
相关论文
共 14 条
  • [1] BERGLES AE, 1964, ASME T J HEAT TRANSF, V107, P559
  • [2] DETECTION OF SUBCOOLED BOILING HEAT-TRANSFER REGIMES UP TO CRITICAL HEAT FLUX BY ACCELEROMETRIC EQUIPMENT
    CELATA, GP
    DELLORCO, G
    GASPARI, GP
    [J]. FUSION ENGINEERING AND DESIGN, 1995, 28 : 44 - 52
  • [3] FLOW-INDUCED VIBRATIONS IN 2-PHASE FLOW
    CHEN, SS
    [J]. JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 1991, 113 (02): : 234 - 241
  • [4] FAND RM, 1961, ASME, V83, P133
  • [5] Effect of flow-induced vibration on local flow parameters of two-phase flow
    Hibiki, T
    Ishii, M
    [J]. NUCLEAR ENGINEERING AND DESIGN, 1998, 185 (2-3) : 113 - 125
  • [6] Klaczak A, 1997, HEAT MASS TRANSFER, V32, P477, DOI 10.1007/s002310050148
  • [7] An experimental investigation on the critical heat flux enhancement by mechanical vibration in vertical round tube
    Lee, YH
    Kim, DH
    Chang, SH
    [J]. NUCLEAR ENGINEERING AND DESIGN, 2004, 229 (01) : 47 - 58
  • [8] Martinelli R. C., 1938, Proceedings of the 5th International Congress for Applied Mechanics, Held at Harvard University and the Massachusetts Institute of Technology, Cambridge, MA, September 12-16, P578
  • [9] NARIAI H, 1994, P 5 INT C APPL MECH, P578
  • [10] Nematollahi MR, 1999, J NUCL SCI TECHNOL, V36, P575, DOI [10.1080/18811248.1999.9726241, 10.3327/jnst.36.575]
12