Certified Energy Manager (CEM)

What is the primary purpose of continuous (or surface) blowdown in a boiler system?

To remove sludge and sediment from the bottom of the boiler drum. To test the operation of the low-water cutoff safety device. To control the concentration of Total Dissolved Solids (TDS) in the boiler water. To rapidly lower boiler pressure during an emergency shutdown.

Correct Answer:

To control the concentration of Total Dissolved Solids (TDS) in the boiler water.

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