[1] Lu Yong, Lu Ping, Zhang Mingyao(Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, Southeast University, et al. Atomization parameters of coal water paste measuredby PIV technique [J]. Journal of Southeast University (English Edition), 2005, 21 (2): 180-183. [doi:10.3969/j.issn.1003-7985.2005.02.013]

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Atomization parameters of coal water paste measuredby PIV technique()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 2

Page:

180-183

Research Field:

Chemistry and Chemical Engineering

Publishing date:

2005-06-30

Info

Title:

Atomization parameters of coal water paste measuredby PIV technique

Author(s):

Lu Yong¹;  Lu Ping²;  Zhang Mingyao¹(¹Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education;  Southeast University;  Nanjing 210096;  China)

²School of Power Engineering, Nanjing Normal University, Nanjing 210042, China

Keywords:

particle image velocity;  coal water paste;  size distribution

PACS:

TQ534.4

DOI:

10.3969/j.issn.1003-7985.2005.02.013

Abstract:

The particle image velocity(PIV)technique is introduced to measure the atomization angle, particle size and size distribution of the atomization coal water paste(CWP)in a cold state model.Due to high-density atomization spray, wide size distribution and large-scale experimental setup in CWP experiments, a commercial PIV system is updated with a 600-mm-long focal length camera and a convex lens used with a laser beam.This long focal length camera makes the PIV system capable of taking the images of micro particles.The measured minimum diameter is about 15 μm.The convex lens has the benefit of centralising the sector laser beam of the PIV system, so that the measurement window of the high density CWP field sectored by the laser beam is brighter and the images taken by the camera are clearer.The experimental results show that it is a useful and efficient tool for the PIV technique to measure the atomization prosperities of CWP.

References:

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[3] Takezaki H, Otani Y, Yoshika S, et al.A method of state feeding coal-water paste into pressurized fluidized bed combustor [A].In:Proceeding of 12th International Conference on FBC[C].San Diego, California, 1993.397-401.
[4] Liu Q X, Tang C M, Zhang M Y.Experimental investigation of feeding coal-water paste into pressurized fluidized bed [J].Combustion Science and Technology, 1997, 3(4):385-387.(in Chinese)
[5] Dantec Measurement Technology A/S.Product information [EB/OL].http://www.savenhitech.se/products/pdf/Dantec%20FlowMap%20 3D.pdf.1998/2004-10-10.
[6] Lu Ping, Zhang Mingyao.Study on the resistance properties of coal-water paste in pipes [A].In:Liu Wei, ed.Proceedings of International Conference on Energy Conversion and Application [C].Wuhan, 2001, 2:744-747.
[7] Lu Yong, Wang Fengling, Wang Shiming.Measuring particle size distribution and total number in the activation chamber of desulphurization system by PIV [J].Journal of Southeast University (English Edition), 2003, 19(1):49-53.

Memo

Memo:

Biography: Lu Yong(1969—), male, associate professor, ly@seu.edu.cn.

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