Feed Water Pumps (FWP)

Question 1

FWPs and boiler drum control valves used for

Answer 1

Maintain constant level of water in boiler steam drum

Question 2

Boiler drums operate at what psi
Feed water pressure is maintained at what psi

Answer 2

Boiler drum- 425psig
Feed water pressure (FWP)- 550 PSIG

Question 3

Feed water pumps used in ppl are rated at what lbs/hour

Answer 3

176lbs/hrs each

Question 4

PPE-(FWP) 81 and 83 CAPACITIES ARE what lbs/hour

Answer 4

146,000 lbs per hour for FWP 81 N 83

Question 5

FWP 82 CAPACITIES ARE

Answer 5

191,000 lbs/hour

Question 6

What 2 functions do feedwater heaters have

Answer 6

To minimize thermal effects of fwh in the boiler
To increase the feed water temp. Witch improves the overall plant efficiency

Question 7

Closed feed water heater are?
(FWH)

Answer 7

She’ll and tube exchangers
Fwh 1, 2 and 7 are examples of closed feed water heaters

Question 8

Open feed water heaters are also called?

Answer 8

Deaerarators

Question 9

What are open feedwater heaters purpose? Known as DAs

Answer 9

They have dual purpose of heating the Feedwater to improve efficiency and deaerating the feedwater to remove gasses

Question 10

What are the tanks under the (DA) DEAERATOR for

Answer 10

Feed water storage

Question 11

DA 7, 8,and 10 are what type of heater

Answer 11

Open feed water heaters

Question 12

Heat recovery steam generators also know as?

Answer 12

HSRG

Question 13

HRSG 8 AND 10 BOTH HAVE TUBE SECTIONS CALLED?

Answer 13

Economizers

Question 14

The economizers on HRSG 8,10 do what function

Answer 14

Heat boiler feedwater

Question 15

The high and low temp economizers heat feed water for what boiler

Answer 15

Boiler 8

Question 16

The high temp economizer (feedwater heaters) heats feed water for what boilers

Answer 16

Boilers 1, 2, 3 and 7 at (ppl)