Dear Khun Netipong,
Thank you for the meeting today. We appreciate the discussion and opportunity to survey the site.
Now we believe the Superheater can use the rotary type soot blowers. We can apply proper materials for temperature tolerance. They will help reduce costs compared to retractable soot blowers. To be confirmed by Josef Seelen after technical drawing review.
For Economizer, there are 6 spaces/levels between tube bundles to locate soot blowers. Typically one set per each level. My idea: you may consider installing two sets for the most dirty box (i.e. the first pass, please confirm) to ensure good clean coverage. To be confirmed by Josef Seelen after technical drawing review.
Well noted that your steam supply is 11 bar/250’C krub.