🔍 Key Concepts

• Latent heat and condensation in a steam-heated surface • How condensate drainage (traps) affects heater metal temperature • Relationship between water, steel surfaces, and corrosion in steam systems

💭 Think About

• What happens to metal temperature on the steam side if condensate is not properly drained from a heater? Hotter, cooler, or about the same? • If water (condensate) remains in contact with steel in a steam space over time, which of the listed effects is most directly associated with that condition? • Which option would be least likely to occur immediately just because condensate is present on the steam side, considering the separation between steam and fuel oil?

✅ Before You Answer

• Confirm how condensate build‑up changes heat transfer efficiency and surface temperatures in a heater • Consider which effect is progressive over time rather than instantaneous • Verify that oil and condensate are normally separated by the heater tubes/shell, so think about which effect happens on the steam side metal itself