Final answer:
The two main reasons for condensate polishing are the removal of impurities and chemicals and the improvement of turbine efficiency. This process is essential for maintaining system integrity and energy efficiency in power generation facilities.
Step-by-step explanation:
The two main reasons for condensate polishing are A) Removal of impurities and chemicals and D) Improved turbine efficiency. Condensate polishing is crucial in power generation processes, especially in nuclear power plants, where it helps to ensure that the water loop is free from contaminants that could cause corrosion or scaling on the turbines and heat exchange surfaces. This, in turn, maintains the efficiency of the turbines by minimizing surface degradation and ensuring the steam can conduct heat effectively.
Additionally, by removing impurities from the condensate, heat transfer processes remain efficient, helping to retain the integrity of the system and minimizing unscheduled downtimes or maintenance. By doing so, engineers are able to enhance the overall efficiency of the power generation cycle and ensure the longevity of the equipment.