Auxiliary Systems Flashcards
How many A/C plants are onboard Momsen and where are they located?
[5]
1A and 1 A/C (AUX 1)
2 and 3 A/C (AUX 2)
4 A/C (Shaft Alley)
Who manufactured the A/C plants?
Manufactured by York
200 ton units
How many refrigeration units does Momsen have?
[2] 1.5 ton units manufactured by York
What type of refrigerant does it use?
R134A
How many chill water pumps do we have?
[5] One per A/C
AAS - AUX 1, AUX 2, Shaft Alley
How many cooling skids do we have?
[3]
SONAR (AUX 1 Lower Level)
C&D (AUX 1 Upper Level)
SPY (Located by the sonar dome)
How many seawater service pumps do we have and how much water do they provide?
[5] 1575 GPM @ 35 psi
What are the locations of the seawater service pumps?
AMAMS
AUX 1 Main 1 Aux 2 Main 2 Shaft Alley
A manatee
What do the seawater service pumps provide?
Provides cooling for: Lube oil cooler A/C condenser LPAC Reefer plants
How many fire pumps do we have and how much water can they provide?
[6] 1000 GPM x 150 psi
What are the locations of the fire pumps?
FAMMS3
FWD VCHT AUX 1 Main 1 Main 2 Shaft Alley 3 Gen
Where/what do the fire pumps provide water for?
Firefighting
R/O units
AFFF stations FWD and AFT
Cooling the steering hydraulic oil
How many potable water tanks do we have and what are their max capacities?
[4]
15,711 gallons
Per tank - holds approx. 4,000 gallons
Where are the potable water tanks located?
Two tanks on either side of AUX 1
Capacity for water consumption/distribution?
35 gallons per person / 1 gallon - drinking per person
How many RO (reverse osmosis) units do we have?
[2] Main 1 - Mid level
How much water do the RO units produce?
12,000 gallons per day, 500 gallons per hour
What skids are the RO units on? [3]
Filter - electric heater, centrifugal separator, 20 & 3 micron filter, and activated carbon filter
HP Pump - HP Pump, Pump driver mother, V-belt drive and an accumulator
RO Module - RO Modules, dump, valves, flow meters, pressure reducing coils, bypass valves
How many RODM (Reverse Osmosis DeMineralizer)s do we have and where is it located?
[1] AUX 1 Upper level
How much water do the RODMs produce?
18-22 gallons of potable water are produced for every 100 gallons of seawater
What is the demineralized water used for?
Gas turbine water wash
Electronic cooling water skid
SPY polish
How many hot water heaters do we have?
[3]
Where are the hot water heaters located and what does each provide?
Main 1 Mid level by the ROs (2)
- used for crew galley, showers, and sinks
Outside filter cleaning shop (1)
- used for wardroom galley, showers, and sinks
What are the VCHT locations?
FWD pump room
Shaft alley
One tank in each location
- holds 490 gallons of black water (sewage)
What are the three modes of VCHT?
At sea: sewage is collected and then pumped over the side
Inport: sewage is collected and then pumped to the pier
In-transit: Sewage is collected and held in the tanks. This mode is used during sea and anchor and when the ship is less than 3 miles from land
What is HALONs chemical composition?
11 C
32 F
1 Cl
11 Br
What is HALON used for?
Extinguishing agent for a BRAVO fire in the module
- HALON 1301 / 5 lb CO2 activation
Where is the OWS (Oil Water Separator) located and what does it do?
Located in AUX 2
Used to separate water from oil, clean water goes over the side into the ocean. Oil left over stays in a waste oil holding tank until the ship returns to port where it is pumped to a shore facility.
What are the Main Drainage Eductors used for and where are they located?
Used to dewater engineering spaces
Located in:
AUX 1
Main 1
Main 2
What are the five modes of steering?
Computer assisted auto - gyro/rudder inputs to maintain course
Computer assisted manual - Operator uses the Manual Steering Wheel Assembly (MSWA)
Backup manual - All steering commands are transmitted to each individual LCU by hard wire connections
Emergency - Operator controls the rudder via a helm order control knob on the LCU (AFT steering only)
Emergency manual - One rudder is moved at a time using an electric or hand pump (AFT Steering)
