- Control %excess oxygen at 3 %vol. during initial start up stage. Therefore, the operating control range in PIT will be 2.5 – 3.5 %vol. for temporary adjustment. And after EOSC team do the firing performance evaluation, then the optimize target for excess O2 will adjust again.
- Do the sootblow activity for 1 time/shift.
- “Do not adjust the staging air damper more than 40% opening”. Please note that the staging air damper design for NOx reduction proposed, not for increasing the combustion air flow or any others reason.
- Skin temp. of air preheater shall be controlled >160 degC for preventing acid dew point corrosion.