RMU

Question 1

List what RMU supplies

Answer 1

RCS via Blender
SF cooling
BTRS
RCDT
PRT
BA Batch Tank
SAT
RWST via Blender
RCP #3 seals
Resin sluice

Question 2

Discuss what Causes RMW-V-30 to auto close

Answer 2

Phase A isolation (T signal)

Loss of air

Question 3

Discuss design flow rate of the boric acid pumps

Answer 3

Each pump at 75 GPM for a total 150 GPM is equal to the design flow of one CCP

Question 4

Discuss the function of the boric acid filter

Answer 4

removes particulates and undissolved crystals, the help prevents potential damage to the CCPs

Question 5

Discuss how to borate if the Boric Acid filter was inoperable

Answer 5

• bypass flow around the filter (CS-V-425 or 743)

- align BAT for gravity flow to the CCP

Question 6

Discuss how to Determine Boric acid injection rate

Answer 6

use equation:

(RCS Boron * 120GPM) / Boric Acid Tank Boron

Question 7

Discuss Stepback feature

Answer 7

Throttles 111A or 110A in the last part of the add to prevent overshoot

Question 8

State Flow deviation Alarm for Boric Acid flow

Answer 8

0.8 GPM for >45seconds.

VAS alarm is received and 110B/111B shuts

Question 9

State Flow Deviation Alarm for Make up flow

Answer 9

8.0 GPM for >30 seconds

VAS alarm is received and 110B/111B shuts

Question 10

Discuss flow path for Auto Make up

Answer 10

RMW and Boric acid pumps start

Flow goes into the bottom of the VCT (110B)

Question 11

Discuss flow path for Manual Make up

Answer 11

RMW and Boric acid pumps are started

Flow goes into the top and Bottom of the VCT (111B and 110B)

Question 12

Discuss flow path for Borate

Answer 12

Boric acid pump starts

Flow goes into the bottom of the VCT (110B)

Question 13

Discuss flow path for Dilute and Alt Dilute

Answer 13

RMW pump starts
Flow goes into the top of the VCT (111B)
For alt its both (111B and 110B)

Question 14

Discuss flow path for Rapid Borate

Answer 14

CS-V-426 opens
Boric acid pumps starts
Flow goes into the suction of the CCPs