What does 'deaeration' aim to achieve in boiler operation?

Deaeration in boiler operation primarily aims to remove dissolved gases, such as oxygen and carbon dioxide, from the boiler feedwater. The presence of these gases is detrimental as they can lead to corrosion within the boiler system, which can significantly affect the integrity and efficiency of the boiler over time.

By eliminating these gases through the process of deaeration, the likelihood of corrosion is greatly reduced, allowing for a more stable and reliable operation of the boiler. This is crucial for maintaining the longevity of boiler components and ensuring effective heat transfer. The removal of dissolved gases is achieved through heating the water and using mechanical means to enhance gas release, ensuring that the water entering the boiler is as pure as possible.

This focus on gas removal is key to preventing oxidation and subsequent damage to sensitive surfaces in the boiler system, ultimately enhancing the overall reliability of steam generation.