For efficient operation, what temperature should the storage section of a steam deaerator be maintained at?

The optimal temperature for the storage section of a steam deaerator is maintained at the temperature of saturation corresponding to the deaerator pressure. This ensures that the conditions are ideal for the removal of dissolved gases, particularly oxygen and carbon dioxide, which can lead to corrosive conditions in boilers and steam systems.

When the storage temperature aligns with the saturation temperature dictated by the deaerator pressure, it helps maintain the desired equilibrium, allowing for effective venting of non-condensable gases. This relationship also supports efficient heat transfer and the prevention of thermal shock to the water, which could happen if there is a significant difference between pressure and temperature.

While maintaining temperatures above 200°F or 212°F may seem beneficial, these values do not consider the specific operating pressure of the deaerator. Thus, relying solely on fixed high temperatures without referencing pressure can lead to inefficiencies and potential operational issues. Ensuring that the temperature is dictated by the saturation temperature ensures both safety and optimal maintenance of the system's integrity.