In a main propulsion steam turbine installation, the condensate pump initially discharges to the

In a main propulsion steam turbine installation, the condensate pump initially discharges to the

• A. Air Ejector Condenser
• B. Main Condenser
• C. Deaerator
• D. Feedwater Heater

Answer: (A)

The main idea is how condensate is returned and treated in a marine propulsion steam plant to keep the boiler feedwater clean while preserving the condenser vacuum. The condensate pump sends the condensate first to the Air Ejector Condenser because this unit is the first stage in handling the condensate stream and the noncondensables associated with the air ejector system. The air ejectors remove noncondensables to maintain the condenser vacuum, and their exhaust steam must be condensed. Feeding condensate to the Air Ejector Condenser allows the hot condensate to condense that vapor and start removing noncondensables early in the loop. After condensation in the Air Ejector Condenser, the condensate typically moves on to the deaerator and then to feedwater heaters before returning to the boiler feedwater system. This arrangement ensures vacuum integrity and proper treatment of the condensate before it becomes feedwater.

The main idea is how condensate is returned and treated in a marine propulsion steam plant to keep the boiler feedwater clean while preserving the condenser vacuum. The condensate pump sends the condensate first to the Air Ejector Condenser because this unit is the first stage in handling the condensate stream and the noncondensables associated with the air ejector system. The air ejectors remove noncondensables to maintain the condenser vacuum, and their exhaust steam must be condensed. Feeding condensate to the Air Ejector Condenser allows the hot condensate to condense that vapor and start removing noncondensables early in the loop. After condensation in the Air Ejector Condenser, the condensate typically moves on to the deaerator and then to feedwater heaters before returning to the boiler feedwater system. This arrangement ensures vacuum integrity and proper treatment of the condensate before it becomes feedwater.