OCC

Question 1

what is the maximum reheat spray flow at OCC

Answer 1

275 kpph

Question 2

explain the steps required to take the unit to OCC?

Answer 2

• take the unit off LFC (off control)
• change the MW ramp rate to 1/min
• change the MW high limit to 830
• set the MW target to 830 and hit run
• slowly raise superheat and reheat temperature to 1000 degrees
• stop sootblowers
• small changes have a big impact to the unit when this high in load