What is one of the primary functions of feedwater heaters in a steam system?

Feedwater heaters play a crucial role in improving the efficiency of steam systems by preheating the feedwater before it enters the boiler. This process is essential because it raises the temperature of the feedwater, allowing for a more efficient heat exchange when the water is ultimately converted into steam inside the boiler.

By preheating the feedwater, less energy is needed from the fuel to reach the water’s boiling point, leading to reduced fuel consumption and lower operational costs. This preheating also helps in minimizing thermal shock to the boiler when cold feedwater enters, thus enhancing the overall longevity and performance of the equipment.

The primary function of preheating the feedwater before it enters the boiler is a key aspect of optimizing the steam generation process and improving the overall thermal efficiency of the system.