01
The Challenge
Radiant losses and uneven gas flow in the transition sections were slowing heat-up and wearing components.
02
What Was Applied
Emisshield on the duct burner zone and transition sections of the horizontal HRSG, with boiler tube performance evaluated in a static test.
03
Why It Worked
Coated duct-burner refractory re-radiates energy into the gas path and tube banks instead of storing it in the lining, so the unit heats faster and more evenly. See Production Increase, heat-up.
04
Summary of Results
| Metric | Before | After |
|---|---|---|
| Time to operating temperature | Baseline | −22% |
| Particulate | Baseline | −20% |
| Dusting | Present | Reduced |
| Refractory and steel sub-component life | Baseline | Increased |