RMW

Question 1

STATE the function of the Reactor Makeup system (RMW)

Answer 1

Supply primary grade makeup water, a boric acid solution, or a blended mix of the two to the RCS via CVCS and to various other auxiliary systems

Question 2

STATE the function of the following RMW system component: Boric Acid Batching Tank

Answer 2

• BA Batch Tank is used to mix a boric acid solution by dissolving boric acid crystals in RMW
• 800 gallons
• Equipped with agitator and electric heaters
• Located in the PAB 53’ (south end)

Question 3

STATE the function of the following RMW system component: Boric Acid Storage Tanks

Answer 3

The BA Tanks store the inventory of 4% by-weight boric acid solution used to supply the Reactor Makeup System
• 24,000 gallons each

Question 4

STATE the function of the following RMW system component: Boric Acid Transfer Pumps

Answer 4

The Boric Acid Transfer Pumps transfer acid solution from the BATs to various systems and components supplied by the Reactor Makeup System

Question 5

STATE the function of the following RMW system component Reactor Makeup Water Storage Tank

Answer 5

RMW Storage Tank stores the inventory of primary grade water used to supply the Reactor Makeup System.
• 112,000 gallons

Question 6

STATE the function of the following RMW system component: Reactor Makeup Water Pumps

Answer 6

The RMW Pumps transfer water from the RMW Tank to various systems and components supplied by the Reactor Makeup System

Question 7

STATE the function of the following RMW system component: Boric Acid Blender

Answer 7

The Blender is essentially a mixing tee
Boric acid passes straight thru the tee, RMW enters at a 90° angle to the boric acid flow.
Boric acid passes through a cylindrical insert with small holes and is mixed with RMW as it flows out. Turbulence results in thorough mixing

Question 8

STATE the function of the following RMW system component: Boric Acid Filter

Answer 8

Removes particulate matter (undissolved boric acid crystals, debris, etc.)
Prevents damage to the CS pumps
BAF may be bypassed to change cartridge

Question 9

LIST the systems or components that can be supplied by the Reactor Makeup System

Answer 9

• Spent Fuel Cooling and Cleanup System
• Boron Thermal Regeneration System
• Reactor Coolant Drain Tank
• Pressurizer Relief Tank
• Boron Recovery System
• CBS Spray Additive Tank
• Spent Resin System
• Refueling Water Storage Tank
• RCP #3 seal standpipes
• CVCS