In which unit is feedwater temperature typically monitored?

• A. Degrees Celsius
• B. PSI
• C. Pascals
• D. Gallons per minute

Answer: (A)

Feedwater temperature is typically monitored in degrees Celsius because temperature is a direct physical property that reflects the thermal state of the water entering the boiler. Monitoring the feedwater temperature is critical since it influences the overall efficiency and safety of the boiler operation. High feedwater temperatures can lead to reduced thermal shock when the water enters the boiler, while lower temperatures can affect the steam production and efficiency.

Degrees Celsius is the standard unit used for measuring temperature in most industrial settings worldwide, as it provides a clear, quantitative measure of how hot the feedwater is. This allows operators to make informed decisions about adjustments needed in the boiler system to optimize efficiency and maintain safety standards. In contrast, PSI (pounds per square inch) and Pascals are units of pressure, while gallons per minute is a measure of flow rate, none of which directly relate to the monitoring of temperature.