What is the primary purpose of a condenser in a steam system?

The primary purpose of a condenser in a steam system is indeed to convert steam back into water for reuse in the boiler. This process is essential for maintaining the efficiency of the steam cycle. When steam is produced in the boiler, it expands and does work, such as turning turbines. After performing its work, the steam must be condensed back into liquid water to be pumped back into the boiler.

This recycling process ensures that water is continuously available for steam generation, minimizing waste and maximizing energy efficiency. The condenser achieves this by cooling the steam, often using a cooling medium like water or air, which allows the steam to release its latent heat and transition back to the liquid state. This conversion not only facilitates a closed-loop system but also helps in maintaining pressure levels within the steam system, ensuring optimal performance of the boiler and associated equipment. The other choices pertain to different functions that are not the primary role of a condenser.