What type of water conditions are closely monitored in boiler feed water?

The monitoring of total dissolved solids (TDS), pH, and conductivity is essential in managing boiler feed water because these factors directly influence the efficiency, safety, and longevity of the boiler system.

TDS represents the combined total of all organic and inorganic substances contained in the water, which can affect boiling characteristics and lead to scale formation or corrosion. The pH level is crucial because it indicates the acidity or alkalinity of the water; improper pH levels can lead to damaging corrosion of boiler materials or scaling. Conductivity measures the water's ability to conduct electricity, which is related to the presence of ions in the water; high conductivity can indicate elevated levels of TDS, pointing to potential water quality issues.

In contrast, aspects like temperature and elevation are not primary concerns for boiler feed water treatment in the same way TDS, pH, and conductivity are. While color and odor might suggest contamination or other issues, they are less quantifiable and standardized compared to the precise measurements of TDS, pH, and conductivity. Monitoring dissolved oxygen levels is important for preventing corrosion, but it is just one aspect among many that need to be evaluated in the broader context of overall water chemistry.