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[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()
测量水煤膏雾化场特性参数的PIV技术
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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
测量水煤膏雾化场特性参数的PIV技术
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
陆勇1;  卢平2;  章名耀1
1东南大学洁净煤发电及燃烧技术教育部重点实验室, 南京 210096; 2南京师范大学动力学院, 南京 210042
Keywords:
particle image velocity;  coal water paste;  size distribution
PIV;  水煤膏;  尺寸分布
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.
利用商用PIV设备及自我开发的图像处理软件, 针对水煤膏雾化场中粒子浓度高、尺寸分布宽的特点, 采用收缩镜以增强片光源的照度, 使得PIV能够拍摄到高浓度雾化场的切片图像;采用600 mm焦距的长焦镜头, 使得所拍粒子尺寸的下限可达15 μm.实验结果表明PIV技术是一种高效的水煤膏雾化场雾化角、小粒径及尺寸分布的测量手段, 克服了常规粒子尺寸分析仪器不能用于在线测试大型试验装置中雾化场特性参数的缺点.

References:

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Memo

Memo:
Biography: Lu Yong(1969—), male, associate professor, ly@seu.edu.cn.
Last Update: 2005-06-20