The present paper discusses the goals and methods of design of a circulating fluidized bed (CFB) boiler: A 62-MWt (75-T/h) CFB boiler was designed manually using experience and available published data. The design was regenerated by an Expert System for evaluation and confirmation of the manual design. Design choices and resulting surface areas from these two approaches were compared and validated. Final confirmation of the design can be obtained only from operation of the boiler. The boiler was built and commissioned in the Jiangshu Province, China, firing the design coal. A comprehensive test program was undertaken to monitor the performance of the boiler. Predicted performance from both the manual design and the Expert System is compared with those measured in the boiler. A reasonable agreement between the predicted performance and measured values was obtained, which confirmed both experience-based design decision and that from the Expert System.

Issue Section:
Internal Combustion Engines: Power
Keywords:
boilers, furnaces, fluidised beds, design for manufacture, expert systems, performance index, testing, coal, Circulating Fluidized Bed Boiler, Design, Expert System
Topics:
Boilers, Coal, Design, Expert systems, Furnaces, Heat, Stress, Fluidized beds
1.
Fang, M. X., Luo, Z. Y., Li, X. T., Wang, Q. H., Shi, Z. L., Ni, M. J., and Cen, K. F., 1997, “Development of the First Demonstration CFB Boiler for Gas and Steam Cogeneration,” Proceedings of the 14th International Conference on Fluidized Bed Combustion, F. D. S. Preto, ed., Vancouver, BC, Canada, May 11–14, ASME, New York, NY, pp. 663–669.
2.
Basu
,
P.
, and
Mitra
,
S.
,
1994
, “
Application of an Expert System to the Design of Furnace of a Circulating Fluidized Bed Boiler
,”
ASME J. Eng. Gas Turbines Power
,
116
, pp.
462
–
467
.
3.
CFBCAD©, an Expert System, 1996, Greenfield Research Inc., P.O. Box 25018, Halifax, Canada B3M 4H4.
4.
LaFanechere
,
L.
,
Basu
,
P.
, and
Jestin
,
L.
,
1998
, “
Use of an Expert System to Study the Effect of Steam Parameters on the Size and Configuration of Circulating Fluidized Bed Boilers
,”
ASME J. Eng. Gas Turbines Power
,
120
, pp.
861
–
866
.
5.
Basu, P., and Fraser, S. A., 1991, “Design Considerations,” Circulating Fluidized Bed Boiler—Design and Operations, Butterworth-Heinemann, Boston, pp. 174–184.
6.
Tang, J. T., and Engstrom, F., 1987, “Technical Assessment on the Ahlstrom Pyroflow Circulating and Conventional Bubbling Fluidized Bed Combustion Systems,” Proceedings of the 9th International Conference on Fluidized Bed Combustion, J. P. Mustonen, ed., Boston, May 3–7, ASME, New York, pp. 38–54.
7.
Luo, Z. Y., Ni, M. J., Zhou, J. H., Cheng, L. M., Chang, Z. J., and Cen, K. F., 1989, “Solids Recycle System for Circulating Fluidized Beds,” Proceedings of the 10th International Conference on Fluidized Bed Combustion, A. M. Manaker, ed., San Francisco, April 30–May 3, ASME, New York, pp. 557–562.
Copyright © 2001
 by ASME
You do not currently have access to this content.