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CLC number: TK229.66

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Received: 2001-05-07

Revision Accepted: 2001-08-16

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Journal of Zhejiang University SCIENCE A 2002 Vol.3 No.3 P.251-257

http://doi.org/10.1631/jzus.2002.0251


Model prediction of the operating behavior of a circulating fluidized bed boiler


Author(s):  WANG Qin-hui, LUO Zhong-yang, NI Ming-jiang, CEN Ke-fa

Affiliation(s):  Clean Energy and Environment Engineering Key Lab, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   qhwang@cmee.zju.edu.cn

Key Words:  Circulating fluidized bed boiler (CFB), Model, Boiler operation


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WANG Qin-hui, LUO Zhong-yang, NI Ming-jiang, CEN Ke-fa. Model prediction of the operating behavior of a circulating fluidized bed boiler[J]. Journal of Zhejiang University Science A, 2002, 3(3): 251-257.

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Abstract: 
An improved mathematical model for a circulating fluidized bed (CFB) boiler based on the model developed earlier by the authors was applied to simulate the operation of a 12 MW CFB boiler. The influences of the excess air ratio, primary air ratio, coal particle size distribution, coal properties (ash content and volatile content) and Ca/S ratio on the boiler operation were analyzed. The results showed that the model simulation may be applied to the optimum design and economic operation of the CFB boiler.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Hannes, J., Renz, U., Van den Bleek, C. M., 1995, The IEA Model for Circulating Fluidized Bed Combustion. In: Proceeding of the 13th International Conference on FBC. Ed. by Heinschel. ASME, Orlando, p.287-296.

[2] Heinbockel, I., Fett, F. N., 1995, A mathematical model for pressurized circulating fluidized bed Combustion. In: Proceeding of the 13th International Conference on FBC, Ed. by Heinschel. ASME, Orlando, p.1283-1301.

[3] Huilin, L., Guangbo, Z., Rushan, B., et al., 2000, A coal combustion model for circulating fluidized bed boilers. Fuel, 79: 165-172.

[4] Park, C. K., Basu, P., 1997, A model for prediction of transient response to the change of fuel feed rate to a circulating fluidized bed boiler furnace. Chemical Engineering Science, 52(20): 3499-3509.

[5] Seeber J., Scheffknecht, G., 1999, Boiler design concept for standardized medium size CFB plants, In: Circulating Fluidized Bed Technology VI. Ed. by J. Werther. DECHEMA, p.933-948.

[6] Shelton, E., 1996, How We Got Here From There: Steps and Missteps on the Path to Utility Scale CFBs, In: Circulating Fluidized Bed Technology V. Ed. by Mooson Kwauk and Li Jinghai. Science Press, Beijing, p.313-320.

[7] Wang Qinhui, 1997, Mathematical Modeling and Performance Testing of Circulating Fluidized Bed Boiler, Ph. D. thesis of Zhejiang University, Hangzhou, China(in Chinese).

[8] Wang Qinhui, Luo Zhongyang, Li Xuantian et al., 1999, A mathematical model for a circulating fluidized bed. Energy, 24, 633-653.

[9] Werner, A., Grausam, M., Linzer, W., et al., 1999, Overall modelling of circulating fluidized bed boilers, In: Circulating Fluidized Bed Technology VI, Ed. by J. Werther. DECHEMA, p.425-436.

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