The Challenge San Miguel Electric Cooperative Unit 1 includes a 440 MW lignite coal fired boiler which had a history of unscheduled shutdowns due to clinker formation. The clinkers would accumulate in the secondary super heater section and fall in the boiler damaging tubes. Prior to the installation of the SMART CleanTM system, all cleaning events were conducted manually according to the boiler operator’s discretion and the plant’s standard practices. Historically, the control room operators ran a sectional sootblower sequence two times per 12 hr shift or 4 times per day. Without the knowledge of where the fouling and slagging were located, the operators risked cleaning areas that were not covered by deposits (over-cleaning) or, failed to initiate cleaning activities in the ar

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