Mid loop operations

Question 1

What is lowered inventory?

What is reduced inventory?

Answer 1

lowered inventory = below 114’ (RV flange) to 111’

reduced inventory = below 111’

point of references

• 114’ - flange
• 108’ 3” top of h_L
• 107’ 8”-10” - target for mid loop
• 107’ 6” - vortexing of RHR may occur
• 107’ - middle of h_L

Question 2

What are the indications for a vortexing pump?

What are the indications for a cavitating pump?

Answer 2

small oscillations of 2-3 amps, little to noise increase

larger oscillations of 8-10 amps, increase noise at pump

Question 3

during going to midloop operations what are the

levels

instruments

agreement

that must exist as level goes down?

Answer 3

129’ - 112’ WR (9”) LI-400

112’-108’ NR (4”) LI-400

108’ - … NR (4”) Ultrasonic