How many main feed booster pumps does each Feedwater System have?

How many main feed booster pumps does each Feedwater System have?

• A. One
• B. Two
• C. Three
• D. Four

Answer: (B)

Redundancy and sufficient capacity are built into each Feedwater System. To ensure a continuous, reliable feed to the boiler under all operating conditions, there are two main feed booster pumps in each system. One pump acts as the duty unit while the other sits in standby. The control system can run either pump or both as needed. If one pump trips or is being serviced, the other can carry the full load to prevent a loss of feedwater and a dangerous low-water condition. When boiler demand is high, both pumps can run in parallel to meet the required flow. This is why the correct count is two for each system.

Redundancy and sufficient capacity are built into each Feedwater System. To ensure a continuous, reliable feed to the boiler under all operating conditions, there are two main feed booster pumps in each system. One pump acts as the duty unit while the other sits in standby. The control system can run either pump or both as needed. If one pump trips or is being serviced, the other can carry the full load to prevent a loss of feedwater and a dangerous low-water condition. When boiler demand is high, both pumps can run in parallel to meet the required flow. This is why the correct count is two for each system.