Condition monitoring of cooling tower fan using K-band Doppler radar

被引：2
|
作者：
Im, Yun-Taek [1 ]
Doo, Seung-Gyu [1 ]
Hwang, Jeong-Sik [1 ]
机构：
[1] HANARO Management Div, Daejeon, South Korea
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2019年 / 61卷 / 01期
关键词：
aging management; condition monitoring; cooling tower fan; CW radar; rotating machinery;
D O I：
10.1002/mop.31537
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A contactless condition monitoring technique for cooling tower fans is proposed using K-band Doppler radar. The system is realized using a commercial K-band Doppler radar module, the Hilbert transform is adopted to minimize the hardware complexity, and the Fourier transform is used to analyze the received signal. The proposed system has several advantages. First, Doppler radar is less vulnerable to the adverse effects of scattering from mist or dust, since the wavelength of a microwave is longer than that of a laser. Second, the proposed radar system can be applied to any sized fans, although it is suitable for cooling tower fans. Third, it can be easily implemented in a low-cost manner. The test results show that the RPM of the HANARO cooling tower fan agree with that of the motor in both low-speed and high-speed modes. The proposed system can be applied to the condition monitoring of cooling tower fans in thermal control systems.
引用
收藏
页码：158 / 162
页数：5
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