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Vol. 210, Issue 3, March 2017, pp. 42-49

 

Bullet

 

Application of Acoustic Techniques in Thermal Power Plants
 

1 T. K. Sai and 2 K. A. Reddy

1 NTPC, Delhi, Indian 110003
2 KITSW, Warangal, India 506003
1 Tel.: 91 9440918146

1 E-mail: tksai123@rediffmail.com

 

Received: 25 January 2017 /Accepted: 3 March 2017 /Published: 31 March 2017

Digital Sensors and Sensor Sysstems

 

Abstract: In the power plant, for over two decades, use of acoustic techniques were limited only to detect steam leaks in the Boiler. Even this application has certain limitations like interfering background noises, sound wave attenuations, and inaccessibility of desired sensor locations. For these reasons a proper specialized technique, generally unique to a given application, be employed to ensure optimum sensitivity. This paper presents an innovative approach towards use of acoustic techniques in a 500 MW thermal power plant. The application areas include clinker /sagging detection, steam leak detection and combustion optimization. In the steam leak detection and combustion optimization, the present day limitations are overcome. The use of acoustic technology to detect clinker formation is a new concept. All the three applications are designed and implemented in a 500 MW power plant.

 

Keywords: Distributed control system, Acoustic measurement, Power station, Clinker, Tube leak, Combustion.

 

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