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Title: An intellignet controller for optimized sootblowing

Technical Report ·
OSTI ID:269614

Efficiency losses of over 200 Btu/KWH have been attributed to sub-optimal control of sootblowers in coal-fired boilers, frequently accounting for over 80% of the controllable losses. For a 500 MW power plant, this translates into yearly costs of over $1 M. The primary impediment to sootblowing optimization to date has been the difficulty associated with modeling the relationship between sootblowing, and boiler efficiency. New advances in neural network technology now provide an attractive approach to address this issue. This paper presents results to date of a project currently under way at DHR Technologies, Inc. (DHR), George Washington University (GWU), and Baltimore Gas and Electric Company (BGE), with funding provided by the Department of Energy (DOE), to develop an Intelligent Controller for Optimized Sootblowing (ICOS). The ICOS system combines a neural network-based process model with an optimization algorithm to provide automated, optimized control of steam or compressed air sootblowers for fossil utility boilers. In Phase I of the project, the proposed optimization approach was tested and validated using data from BGE`s Brandon Shores Station. Phase I quantified the expected savings of the controller and verified the effectiveness of the proposed technical approach. In Phase II, the control algorithm will be incorporated into DHR`s TOPAZ{trademark} optimization system and interfaced with Brandon Shore`s Diamond Power sootblowing controller, and will be demonstrated and tested for closed-loop, optimal sootblowing control. The savings achieved through use of the ICOS controller during testing will also be quantified.

Research Organization:
Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Encor-America, Inc., Mountain View, CA (United States)
OSTI ID:
269614
Report Number(s):
EPRI-TR-106529; CONF-960524-; TRN: 96:003583-0027
Resource Relation:
Conference: Heat-rate improvement conference, Dallas, TX (United States), 22-24 May 1996; Other Information: PBD: May 1996; Related Information: Is Part Of Proceedings: 1996 heat rate improvement conference; Diaz-Tous, I.A. [ed.] [Encor-America, Inc., Mountain View, CA (United States)]; PB: 568 p.
Country of Publication:
United States
Language:
English