An Optimization Study on Soot-Blowing of Air Preheaters in Coal-Fired Power Plant Boilers

Yuanhao Shi, Jie Wen, Fangshu Cui and Jingcheng Wang
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Yuanhao Shi: School of Electrical and Control Engineering, North University of China, Taiyuan 030051, China
Jie Wen: School of Electrical and Control Engineering, North University of China, Taiyuan 030051, China
Fangshu Cui: School of Data Science and Technology, North University of China, Taiyuan 030051, China
Jingcheng Wang: Department of Automation, Shanghai Jiao Tong University, and Key Laboratory of System Control and Information Processing, Ministry of Education of China, Shanghai 200240, China

Energies, 2019, vol. 12, issue 5, 1-15

Abstract: This paper presents a comprehensive approach for optimization of soot-blowing of air preheaters in a coal-fired power plant boiler. In the method, modeling of the cleanliness factor is firstly proposed to monitor the ash deposition status of the air preheaters. Then, the statistical fitting of the ash fouling status is subsequently obtained to analyze the ash fouling dynamics and assessment of optimized soot-blowing strategies. Soot-blowing strategies are finally developed to optimize the steam consumption and heat transfer efficiency. Our methods can achieve the fouling monitoring and soot-blowing optimization of air preheater (APH) by using the existing monitoring data, not requiring additional special instruments and complex computing systems. The methodology is validated with the actual operating data of a 300 MW coal-fired power plant boiler. The results show the effectiveness of the proposed method. It can be used for the soot-blowing optimization in most coal-fired power plant boiler with air preheaters.

Keywords: coal-fired power plant boiler; air preheater; ash fouling monitoring; cleanliness factor; fouling dynamics; soot-blowing optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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