How do freshwater and seawater cooling systems differ?

Freshwater cooling systems and seawater cooling systems fundamentally differ in their source of water. Freshwater systems utilize treated water, which is typically sourced from lakes, rivers, or specifically designed systems that purify water to ensure it is suitable for use in closed-loop cooling processes. This treatment helps prevent scale buildup and corrosion within the system's components, contributing to overall efficiency and longevity.

In contrast, seawater cooling systems draw water directly from the ocean without extensive processing. While seawater is abundant, it also contains a higher concentration of salts and other impurities that can lead to corrosion, biofouling, and other maintenance challenges. This direct use of ocean water necessitates the implementation of more robust materials and additional maintenance procedures to ensure operational effectiveness.

This distinction highlights the reasons why freshwater systems are often preferred in environments where water quality can be controlled, while seawater systems are utilized when there’s ample access to ocean water, despite the potential for increased wear and tear on equipment.