Simulation study on steam moisture measurement based on the method of optical back-scattering

JIAO Ye; HUANG Zhu-qing; CAO Xiao-ling; CAI Cheng; LIU Fang-yan

doi:10.7510/jgjs.issn.1001-3806.2013.03.009

In order to study the effect of wet steam characteristics on the normal operation of the steam turbine unit,a new method was proposed to measure the diameter of the wet steam based on laser scattering principle and co-CCD imaging principle.After simulation,the effect of the size parameter,acceptance angle and other parameters on the backscatter intensity was obtained,optimal parameters were known.When the acceptance angle is 180°and receiver distance is 0.5m,a higher proportion of the scattering can be obtained.The results can provide a good reference for actual measurements.

Simulation study on steam moisture measurement based on the method of optical back-scattering

Corresponding author: HUANG Zhu-qing, huangzhuqing@yahoo.com.cn;

1. College of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410110, China;

2. Hunan Nonferrous Metals Vocational and Technical College, Zhuzhou 412006, China

Received Date: 2012-07-11

Accepted Date: 2012-11-14

Available Online: 2013-05-25

Abstract: In order to study the effect of wet steam characteristics on the normal operation of the steam turbine unit,a new method was proposed to measure the diameter of the wet steam based on laser scattering principle and co-CCD imaging principle.After simulation,the effect of the size parameter,acceptance angle and other parameters on the backscatter intensity was obtained,optimal parameters were known.When the acceptance angle is 180°and receiver distance is 0.5m,a higher proportion of the scattering can be obtained.The results can provide a good reference for actual measurements.

HTML

Reference (10)

[1]	YU D Y,CAI X S,SU M X,et al.Study of back-scattering of high concentration particle system[J].China Powder Science and Technology,2001,7(4):1-3(in Chinese).
[2]	WANG F.Application study of the laser scattering theory for monitoring steam wetness and droplet size in steam turbines[D].Changsha:Changsha University of Science & Technology,2008:12(in Chinese).
[3]	LI L F,ZHANG L,DONG L,et al.Experimental study of the concentration of soot based on the method of optical back-scattering[J].Acta Photonica Sinica,2006,35(6):915-918(in Chinese).
[4]	WANG Y R,FENG D Z,ZHANG Z J.Research on measuring the thickness of soot by scattered light[J].Journal of Jinan University(Science Edition),2001,15(3):253-255(in Chinese).
[5]	HULST V D.Light scattering by small particle[M].New York,USA:Dover Publications,1981:11-15.
[6]	ZHAO K H,ZHONG X H.Optic(book two)[M].Beijing:Peking University Press,1984:251-254(in Chinese).
[7]	KERKER M.The scattering of light and other electromagnetic radiation[M].New York,USA:Academic Press,1969:94-96.
[8]	WANG Q Y.Application technology of CCD[M].Tianjin:Tianjin University Press,2000:183-184(in Chinese).
[9]	HUANG Z Q,CAO X L,YANG J M,et al.Application of CCD in measuring steam moisture and droplet size[J].Opto-Electronic Engineering,2010,37(4):39-43(in Chinese).
[10]	QIAN X.Study on dust concentration measurement technique based on optical back-scattering[D].Harbin:Harbin Institute of Technology,2008:17(in Chinese).

Simulation study on steam moisture measurement based on the method of optical back-scattering

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views