What are the two main reasons for condensate polishing in power plants?

The main reasons for condensate polishing in power plants primarily focus on the removal of impurities that can adversely affect the efficiency and longevity of the system. One of the crucial functions of condensate polishing is to eliminate suspended solids, such as rust and debris, as well as dissolved solids, which often include minerals and chemicals that can lead to scaling and corrosion in the boiler and turbine systems. By effectively removing these contaminants, condensate polishing helps maintain the integrity and efficiency of the steam cycle, leading to improved performance and reduced maintenance costs.

Additionally, the quality of the condensate directly impacts the overall efficiency and operational reliability of the power plant. High-purity condensate ensures optimal heat transfer and minimizes the potential for deposit formation within the heat exchangers and steam generators. This process not only maintains system efficiency but also extends equipment life, which is why removing both suspended and dissolved solids is fundamental in power generation operations.