what is the purpose of the condenser air removal system?
- Removes air and non-condensable gases from the condenser to achieve initial operational vacuum requirements.
- Helps maintain vacuum during normal plant operation
- Provides the means for breaking condenser vacuum during plant shutdown
- Establish, adjust and remove nitrogen overpressure
What are the mechanical condenser air removal pumps used for?
The mechanical air removal pumps are used to establish initial vacuum to approximately 10” Hg within about 30 minutes
What are the steam jet air ejectors used for?
SJAE are used to reduce the condenser pressure to the normal operating pressure of 1-2” Hg absolute
Where are the SJAE?
38’ Turbine building west
What system cools SJAE?
Condensate flow
Where is the discharge for the SJAE? Where is the back up dishcarge for the SJAE?
Discharge throught the site stack through the GWS
into the turbine building locally via ARC-V979/978
what is the purpose of the seal water circ pump?
Seal water circ pump takes a suction on the respective silencer and discharges to the water cooler.
Flow then goes through a flow switch (for pump permissives) to the mechanical air removal pump where it is used for cooling and seal water.
