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3. Recovery of Waste Heat

(2) Measurement and record on the waste heat
 1) The temperature, flow rate, etc. are monitored and measured by the DCS.

(3) Inspection and maintenance of the waste heat recovery system
 1) Inspection and maintenance of the gas air preheater (GAH) A steam soot blower is activated about every 8 hours to clean the element surface. A low-temperature element tends to quickly get corroded, its trend is monitored to replace it ahead of time. An air leak rate is measured to replace a sealing plate, etc., if it worsens.

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