REACTOR Flashcards
What does HPAC stand for ?
High pressure air compressor
What is the purpose of the high pressure?
To provide 4000 psi of air to various ships loads.
Where are the HPACs located ?
1 and 2 in 1MMR
3 and 4 in 2MMR
What does LPAP stand for ?
Low pressure Air Plant
What is the purpose of the Low Pressure Air Plant?
To provide 125 psi of air to supply dental,O2N2 controls, radar systems, pneumatic tool supply, and the vital reactor plant valve control.
Where are the LPAPs located ?
#1 in 1RAR #s 2,3,4 in 1MMR #s 5,6,7 in 2RAR #s 8,9 in 2MMR
What does DU stand for ?
Distilling Units
Purpose of distilling units ?
Provide 100,000 gallons of fresh water per day to supply ships potable water loads and reactor make up water.
Where are DUs located ?
1 and 2 are in 1MMR and 3 and 4 in 2MMR
Purpose of the Reactor fill System
To provide emergency cooling to the reactor in the event of a rupture to prevent over heating of the reactor fuel.
Components of the reactor fill system ?
- reactor fill pumps
- emergency diesel generators
- reserve feed transfer pumps
- potable water pumps
- reserve feed day tank
- fill valves
Where are the reactor fill pumps located ?
1A and 1B -1MMR
2A and 2B-2MMR
What is the purpose of the reactor ?
To produce massive amounts of heat from the fission of U-235 fuel cells.
Where are the reactors located ?
#1 Is under medical. #2 is under ships store.
What is the purpose of the reactor coolant pumps? (RCP)
To supply coolant water to the reactor core to remove the heat produced and transfers the heat to the steam generators to boil the water inside the steam generator.
How many reactor coolant pumps are there?
4 per reactor. (8) total
RCP stands for
Reactor coolant pump
Where are the reactor coolant pumps located?
Inside the reactor compartment
What does CTG stand for?
Coolant turbine generator
What is the purpose of the coolant turbine generators?
The turbine is operated by the main steam system to provide variable voltage and frequency electricity directly to 2 reactor coolant pumps. It does not supply power to ships service loads.
Where are the coolant turbine generators located?
1&2 in 1RAR
3&4 in 2RAR
What is the purpose of the main engines? (ME)
To propel the ship through the water
What is the purpose of the reduction gears?
They transfer the high speed/low torque of the main engines to low speed/high torque required for the propellers.
Where are the Main Engines located ?
1&4 -1MMR
2&3-2MMR
What does ME stand for ?
Main engines
What is the purpose of the ships service turbine generator ? (SSTG)
The turbine is operated by the main steam system to provide 4160V/60Hz/8MW electricity to the entire ship through load centers, transformers,and switchboards
What does SSTG stand for?
Ships service turbine generator
Where are the ships service turbine generators located ?
1&2-1MMR
3&4-2MMR
What is the primary purpose of the emergency diesel generators ? (EDG)
Provide electricity to the reactor fill pumps and fill components in the event of a rupture casualty.
What is the secondary purpose of the Emergency diesel generator?
To provide back-up electricity in any event when normal electricity is lost. ( in port is shore power)
Where are the EDGs located ?
1&2-FWD
3&4-AFT
What is the purpose of the the reboilers? (RBLR)
To provide low pressure auxiliary steam to ships services which require heat.
What does RBLR stand for?
ReBoiler
Where are reboilers located ?
#1 in 1A shaft alley #2 in 4B shaft alley
What does MMR stand for?
Main machinery room
What does RAR stand for ?
Reactor auxiliary room
How many main engines are on board ?
4 total
Where are the MEs located ?
1 and 4 - 1MMR
2 and 3-2MMR
Number of shafts from starboard to port ?
1,2,3,4
What direction do the shafts spin, to propel the ship in the ahead direction ?
1&2 spin clockwise
3&4 spin counter clockwise
What is the highest bell the ship can answer?
Ahead flank 171( ALLL 171)
How much horsepower does each shaft produce ?
70000HP in the ahead direction.
7500 astern.
How many shaft alleys onboard?
12
How many distilling units onboard?
4
Where are the distilling units located ?
1&2-1MMR
3&4-2MMR
Classify the DUs?
6 stage,low pressure,flash type
How much water can the Distilling units make per day?
100,000 gallons per day each
What are the 2 types of water that the distilling units make?
Potable water and reserve feed water
What is the unused seawater from a distilling unit called ?
Brine
What is brine ?
Highly concentrated sea water. (Like a paste)
How many potable pumps are onboard?
4
Where are the potable pumps located ?
1 and 2-1MMR
3 and 4-2MMR
How many reboilers onboard ?
2
Where are the reboilers located ?
#1 in 1A shaft alley. #2 in 4B shaft alley
List 2 loads off the reboiler ( service steam)?
Laundry steam
Galley steam
Water heaters
What pressure steam does the reboilers supply ?
150psi
What provides heat to the reboilers to make reboiler steam?
Main steam
Where do we get service steam from in port?
Shore steam
What produces electrical power for the ship , while underway?
Ships service turbine generator (SSTG)
How many SSTGs on board?
4
How much electricity does each SSTG produce?
4160 VAC/ 60Hz/ 8MW
How do we supply electric power throughout the ship when in port ?
Shore power
What side of the ship are the high volts shore power sponsons located ?
Starboard side of the ship
How many shore power cables are connected to each shore power sponson?
4
What provides electric power to the ship if we lose our normal source of power ?
EDGs
How many EDGs do we have onboard ?
4
What starts the EDGs on a loss of power?
High pressure air
What provides power to the reactor coolant pumps ?
Coolant turbine generators
How many coolant turbine generators are on board ?
4
How many high pressure air compressors (HPAC) are on board?
4
What is the location of the HPACs?
1&2-1MMR
3&4-2MMR
List 2 loads off high pressure air?
EDG starting air, weapons elevators , aircraft elevators, arresting gear, catapult auxiliaries, SCBA re-charge station, LSO hud platform.
List 2 loads off ships service air?
Vital reactor plant valve control, dental air, O2N2 controls, pneumatic tools, and radar systems
How do we supply ships service air to the the ship?
Low pressure air plant( LPAP)
How many LPAP do we have on board?
9
What is the purpose of the main lube oil system ?
Provides lubrication to the main engines and reduction gears
How many lube oil pumps does each main engine have ?
2 lube oil service pumps. ( motor driven, positive displacement )
What cools the lube oil ?
Main sea water
What temperature do we try to maintain the lube oil?
120-130 degree Fahrenheit
List 2 types of protections that we have for the reactor ?
Watchstanders Scram Fast insertion Interlocks And partial trip of the main engine guard valve. ( MEGV)
Who is considered the “father of nuclear power”?
Admiral Hyman G. Rickover
What is the first naval nuclear powered vessel?
USS Nautilus
What is the first nuclear powered surface ship?
USS Long Beach
What is the first nuclear powered carrier?
USS Enterprise
How many nuclear reactors does the TR have?
2
What kind of fuel does the reactor use?
Uranium 235 (U-235)
What does TLD mean?
Thermo Luminescent dosimeter
What does the TLD do?
Provides a way to measure how much radiation a person is exposed to
What does ORSE stand for?
Operational Reactor Safeguards Exam
What type of reactor do we have onboard ?
A4W
RO
Reactor Officer
ARO
Assistant Reactor Officer
REA
Reactor Electrical Assistant
MPP
Main Propulsion Plant
RMA
Reactor Mechanical Assistant
CRA
Chemistry-Radiological Assistant
RMO
Reactor Maintenance Officer
What does RDOM stand for ?
Reactor Department Organization Manual