Optimized Operation of Boiler

Abstract:

This paper studies the problem of optimal operation of 300MW boiler. We combine the actual situation of the device and the theory of heat together, and improve the operating efficiency of the boiler through adjustment of device parameters, thus improving the economic benefit of thermal power plants. Firstly, according to coal characteristics and the theory of heat, we establish an improved utility model to calculate the heat loss of exhaust - gas, chemical incomplete combustion heat loss and heat loss of mechanical incomplete combusting. Then, we use fitting and interpolation, which is always applied to problems of Discrete Mathematical Statistics, to analyze discrete form of experiment data record, and give the relationship between 300MW boiler efficiency and excess air coefficient, which leads us to a new way to ascertain optimal excess air coefficient. And then, we use Principal Components Analysis (PCA) and Correlative Analysis (CA) to study the affection of operation parameters on boiler efficiency. Finally, we combine local optimization with global optimization, and establish an optimal operational model.

• Periodical: Advanced Materials Research (Volumes 960-961)
• Pages: 399-404
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.960-961.399
• Online since: June 2014
• Authors: Chang Liu*
• Keywords: Boiler Efficiency, Correlative Analysis, Excess Air Coefficient, Fitting and Interpolation, Optimization, Principal Component Analysis (PCA)

References

[1] Quangui Fan, Principles of Boiler, China Electric Power Press (2008), pp.36-57. (In Chinese).

[2] Shici Liu, Electric Power, Vol. 1 (1981), p.2. (In Chinese).

[3] Jiahu Li, Course Project of Principle of Steam Boiler, China Electric Power Press (2007), pp.11-12. (In Chinese).

[4] Shunlin Yan, Bin Zhang, Huanying Wu, and Qinyuan Wu, Power Equipment, 2010, Vol. 24(4), p.238. (In Chinese).

[5] Yonghua Li, Hongwei Chen, Fanjun MengProceedings of the Chinese society for electrical engineering, Vol. 24 (1) (2004), p.217. (In Chinese).

[6] Jinzhi Wang, Ming Xiao, Chunmin Jiang, Shandong Electric Power, Vol. 2 (2008), p.36. (In Chinese).