Numerical and Experimental Study of Accreted Ice on Bundle Conductor

被引：0
|
作者：
Hu Q. [1 ]
Yu H. [1 ,2 ]
Li Y. [3 ]
Shu L. [1 ]
Jiang X. [1 ]
Liang J. [1 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
[2] State Grid Chongqing Economic Research Institute, Chongqing
[3] State Grid Chongqing Maintenance Company, Chongqing
来源：
Gaodianya Jishu | / 3卷 / 900-908期
基金：
中国国家自然科学基金;
关键词：
Bundle conductor; Collision coefficient; Ice shape prediction; Icing characteristics; Shadowing effect;
D O I：
10.13336/j.1003-6520.hve.20170303029
中图分类号：
学科分类号：
摘要：
In the process of bundle conductor icing, downstream conductor is in the wake zone of upstream conductor and shadowing effect has an influence on air flow field and water droplet trajectories, so icing accretion characteristics are different between them. We adopted the Lagrange framework to calculate the water droplet trajectories and obtained the relations between collision coefficient and key factors. Results show that shadowing effect plays a major role in icing accretion characteristics. Collision coefficient (β) is increased with the increasing of v or MVD. Within a certain diameter, D has a negative correlation with collision coefficient of bundled conductor (β), that is, β is decreased with the increasing of D. ΔL has no influence on collision coefficient of upstream conductor while collision coefficient of downstream conductor is rising with the increasing of ΔL. The influence on ice shape on bundle conductor surface is analyzed in this paper based on control volume and thermodynamic equilibrium equations. In addition, icing tests on 2-bundled conductor were carried out in an artificial climate chamber, and the results verified the validity of the calculation method. © 2017, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：900 / 908
页数：8
相关论文
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