COMPRESSED AIR, REFRIGERATION, HVAC, AND POTABLE WATER Flashcards Preview

EPF 101 > COMPRESSED AIR, REFRIGERATION, HVAC, AND POTABLE WATER > Flashcards

Flashcards in COMPRESSED AIR, REFRIGERATION, HVAC, AND POTABLE WATER Deck (22):
1

HP AIR SYSTEM CHARACTERISTICS

COMPRESSORS LOCATED IN JET ROOM #1 AND #2
15 CFM AT 551 PSI (38 BAR)
EACH RECEIVER PROVIDES 8 MPDE STARTS

2

HP AIR SYSTEM LINES

MPDE AIR START CONTROLLERS
MPDE COOLING SYSTEM
SSDG START AIR SYSTEM
LP AIR SYSTEM
PORT/STBD AIR SYSTEM CROSS-OVER

3

SSDG START AIR SYSTEM

435 PSI (30 BAR)
EACH RECEIVER PROVIDES 3 SSDG STARTS

4

LP AIR SYSTEM

125 PSI (8.62 BAR)
STRIPPING AND DISCHARGE PUMPS (6.5 BAR)
EMERGENCY PROPULSION INFLATABLE SHAFT SEAL (5 BAR)
SHIP SERVICE AIR STATIONS (18 X PORT, 18 X STBD)

5

REFRIGERATION CONDENSING UNIT

2 X IDENTICAL 9.0 KW COMPRESSORS
SEAWATER-COOLED CONDENSER IN PUMP ROOM #3

6

REFRIGERATION CONDENSING UNIT ALARM SYSTEM

LEAK DETECTION IN CHILL WATER PLANT ENCLOSURE AND PUMP ROOM #3

7

HVAC CHILL WATER UNITS

2 X CHILLERS COOL WATER TO 45 F
2 X PUMPS FEED CHILL WATER
NOT CONTROLLED BY IMCS
NOT SHUT DOWN BY LOAD SHEDDING

8

HVAC CHILL WATER SYSTEM

(8) AIR HANDLING UNITS
(9) FAN COIL UNITS
(2) GRAVITY COIL UNITS
AHU'S AND FCU'S CAN BE STOPPED BY ENERGENCY SHUTDOWN PANEL AND OPERATED BY EMERGENCY VENTILATION

9

MACHINERY SPACE FANS

(4) AXIAL SUPPLY FANS PER ENGINE ROOM
(2) AXIAL EXHAUST FANS PER ENGINE ROOM
(3) AXIAL SUPPLY FANS PER GENERATOR ROOM
(2) AXIAL EXHAUST FANS PER GENERATOR ROOM
1 X OF GROUP IS VSD

10

AIR HANDLING UNITS

MOVE FRESH AND RE-CIRCULATED AIR
AIR CHANGE RATE:
20 MIN FOR HIGH OCCUPANCY
60 MIN FOR WHEELHOUSE
30 MIN FOR OTHER SPCES
AIR HEATED THROUGH DUCT HEATERS

11

FAN COIL UNITS

COOL THROUGH COOLING COILS AND HEAT THROUGH HEAT ELEMENTS
LOCATED IN SPACE SERVED

12

GRAVITY COIL UNITS

PROVIDE COOLING TO MAGAZINE
THERMOSTAT IS EXPLOSION PROOF
AIR FLOW PROVIDED BY MAGAZINE EXHAUST FAN

13

RECIRC HEATERS

USED IN AFFF/HEF ROOMS, ENGINEERING WORKSHOP. ARMORY, HULL MACHINERY AND EQUIPMENT SPACES
MAX AMBIENT TEMP IS 80F

14

FIRE DAMPERS

24 VDC OPENED AND SPRING CLOSED
CONTAIN FUSIBLE LINK
CAN BE MANUALLY CLOSES
IMCS SHOWS STATUS BUT DOES NOT CONTROL

15

VENTILATION FAN SHUTDOWN

SHUT DOWN BY ZONE
(4) MAJOR FIRE RISK AREAS
(6) VENTILATION SHUTDOWN ZONES

16

HVAC MAJOR FIRE RISK AREAS

"G" FOOD SERVICE AREA
"I" AVIATION FUEL SPACES
"L" PAINT LOCKER
"M" MAGAZINE

17

POTABLE WATER STORAGE TANKS

2 X TANKS
TOTAL CAPACITY 4890 GAL (18500 L)

18

POTABE WATER PUMPS

PRIMARY AND STANDBY PUMPS
PRESSURE MAINTAINED BY ACCUMULATORS OF 62 GAL (235 L) EACH

19

POTABLE WATER HEATERS

45 KW, 200 GAL FAST-RECOVERY TYPE ELECTRIC WATER HEATERS

20

HOT WATER RECIRC PUMPS

18.6 GPM (71.1 LPM)

21

HALOGEN PURIFICATION

BROMINE DISINFECTION AT MINIMUM 20MG/L
BROMINE CARTRIDGES REPLACED EVERY 55K GAL (208K L)

22

REVERSE OSMOSIS DESALINATION

2 X RO WATER MAKERS
LOCATED IN PUMP RM #4
BOOSTER PUMPS IN PUMP RM #6
TOTAL DISSOLVED SOLIDS LESS THAN 500 PPM