SW and ESW

Question 1

SW flow path (very high level)

Answer 1

Cooling towers
SW pumps
ESW loads (and other loads)
Cooling towers

Question 2

ESW purpose

Answer 2

Long term cooling during a LOCA or LOOP

Question 3

How does SW / ESW respond to SIS?

Answer 3

Start ESW pumps

Isolate SW pumps

Question 4

What cools the ESW loads? (normal and accident)

Answer 4

Normal operation: cooling towers via SW

Accident: UHS