Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Area 3 > Fuel systems > Flashcards

Fuel systems Flashcards

1
Q

What is the maximum fuel pool cleanup strainer delta-p?

A

3 psid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the maximum fuel pool cleanup filter delta-p?

A

25 psid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

If we are placing the PC system on recirc or cleanup, what is our minimum level?

A

133 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the high, low, and low-low level alarms in the SFP?

A

High- 138’ 2”
Low- 137’ 6”
Low-Low- 137’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What happens if the recycle monitor pump trips during a SFP fill?

A

We need to shut the valve to prevent losing level in the SFP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What concerns do we have when filling the SFP?

A

At 138’ 3” we could overflow to the tray elevator motor

At 138’ 2” we could flood the in-core instrument tubing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the minimum canal level for an irradiated fuel movement inside of containment?

A

137’ 9”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are some T.S’s associated with the SFP?

A
  • boron concentration 2150 ppm (4000-4400 ppm as a borated water source)
  • 23 feet over irradiated fuel assy’s (137’ 4”)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where can we get makeup for the SFP from?

A

LRS RMT
CST
RWT
RMWT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What cools the SFP HX?

A

NCW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the backup source of cooling for the SFP HX?

A

Essential Cooling Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

For the SFP Cooling and cleanup system where does the suction line and discharge line’s go into the spent fuel pool at?

A

The suction line takes a suction off of the top part of the SFP while the discharge line delivers water into the bottom of the pool assisting in natural convection cooling.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How far must water level be kept over the top of irradiated fuel in the SFP?

A

23 feet (137’ 4”)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the SFP temperature high and hi-hi alarms in the control room?

A

High- 125 degrees F

Hi-Hi- 145 degrees F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the normal operating conditions for the PC cooling pumps?

A

50 psig pump discharge pressure
95-100 degrees F SFP Temp
2000 gpm flow rate with one pump running

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the normal operating conditions for the PC cleanup pumps?

A

80-85 psig
95-100 degrees F SFP temp
150 gpm flow rate with one pump running

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the power source for the PC Cooling pumps?

A

PG

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the power source for the PC cleanup pumps?

A

NH

19
Q

During high heat load periods or refueling; what system can be used to help carry the SFP load?

A

The Safety injection system through the use of the shutdown heat exchanger

20
Q

When will the control room get a hi or low pressure alarm for the fuel pool cleanup pump?

A

HI- 95 psig

Low- 67 psig

21
Q

When will the control room get a hi or low pressure alarm for the fuel pool cooling pumps?

A

Hi- 60 psig

Low- 45 psig

22
Q

What do we want to maintain SFP temperature at?

A

95-100 degrees F

23
Q

On our area 3 logs, when do we notify the control room of a higher then normal SFP temperature?

A

115 degrees F

24
Q

The N2 bottles for the cask pit/decon area should be reported as being low at what pressure?

A

300 psig

25
Q

Describe the spent fuel pool

A
  • stainless steel lined
  • concrete walled
  • 340,000 gallons (at 38’) about 45% of RWT
26
Q

Where can we get makeup to the SFP?

A
  • RWT
  • LRS/RMT
  • CST
  • RMWT
  • In emergency FP or DW via hoses
27
Q

How are the fuel assemblies arranged in the SFP?

A

Checkerboard array in order to preclude inadvertent criticality

28
Q

What will automatically stop the PC cooling pumps?

A

A load shed signal or Electrical protection trip

29
Q

After a load shed signal; how does the PC cooling pumps restart?

A

Must be manually restarted after a load shed once power has been restored

30
Q

How is the fuel transfer tube isolated when not in use?

A

PCN-V118 spent fuel pool side

Quick operating closure device- containment blg side

31
Q

What advantage does the QOCD give us over a flange?

A

The QOCD can be removed or installed remotely from the operating floor so no personnel are required to enter the refuel cavity

32
Q

Where are the valves we operate when transferring water from the CST to the SFP?

A
  • One in CST pump house
  • One on 120’ FB
  • Transferred by CT transfer pump
33
Q

What pump do we use to fill the SFP with the RWT?

A

BAMP

34
Q

What are some things to know about the underwater lights in the SFP?

A

They are cooled by the water. If level goes down and the lights are exposed they could overheat/burnout.

35
Q

What is the purpose of the siphon breakers in the SFP?

A

Limit SFP drain down in the event that a line breaks

36
Q

Explain the Fuel Transfer tube.

A
  • 36” stainless steel tube

- Connects Spent Fuel pool and Refuel pool

37
Q

Explain the QOCD?

A

Quick operating closure device

  • Class boundary between fuel building and containment
  • Reduced time/dose associated with installing the blind flange.
  • Qperated (remove/installed) from the operating deck
38
Q

Where is the fuel pool cleanup pumps suction anti-siphon hole?

A

133’

39
Q

Where is the fuel pool cleanup pumps discharge anti-siphon hole?

A

132’ 6”

40
Q

Where is the BAMP suction anti-siphon hole?

A

133’ 6”

41
Q

What is the maximum number of fuel assy’s in the SFP?

A

1205

42
Q

What are the class/non-class gate seals?

A

Decon pit-SFP Class
Decon pit- Cask pit Class
SFP - transfer canal Non Class

43
Q

What is the difference between the Class and non-class gate seals in the SFP area.

A
  • Class seals are provided IA and have N2 backup lined up automatically.
  • Non-class seals are provided IA and have N2 backup. It is required to be manually aligned when IA is lost.
44
Q

What do AO’s do during cask loading operations?

A

Fill and drain the cask loading pit

Area 3 (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions