🔍 Key Concepts

• superheater outlet temperature behavior under normal conditions • effect of water carryover from boiler drum on superheater tubes • difference between steady combustion issues vs. intermittent feed/steam quality issues

💭 Think About

• Which of these options would cause sudden, rapid swings in temperature rather than a slow, gradual change? • How would liquid water entering the superheater instead of dry steam affect metal temperatures and exit steam temperature? • Which choices relate more to long‑term fouling/efficiency vs. something that comes and goes quickly?

✅ Before You Answer

• Distinguish between intermittent problems (on/off, erratic) and steady-state problems (slow trend). • Consider how dirty heating surfaces (economizer or watersides) usually show up in boiler performance data (pressure, fuel consumption, flue gas temp). • Think about the impact of actual water droplets reaching the superheater on temperature readings.