Slide 1

HVAC Systems

AP1000 Chilled Water System

Slide 2

Central Chilled Water SystemVWS Design Basis

– Containment Isolation: Safety-related, seismic, ASME III, 1E– Provides 40°F chilled water – VWS air-cooled chillers shall be designed for operation using

outdoor air with a maximum summer design temperature of 115°F dry bulb / 85.5°F wet bulb and a minimum winter design temperature of -40°F based on 0% exceedance

– VWS water-cooled chillers are designed for stable operation using Component Cooling Water System (CCS) water with a temperature range of 60 to 95°F.

Slide 3

Central Chilled Water System Sketch – High Capacity Subsystem

Slide 4

Central Chilled Water SystemSketch – Low Capacity Subsystem

Slide 5

Containment Recirculation System

Slide 6

Containment Recirculation System

Ductwork and Fan Coil Units

Slide 7

HVAC Systems – Containment Filtration

4,000 CFM EXHAUST UNIT A

4,000 CFM EXHAUST UNIT B

FUEL HANDLINGAREA

AUXILIARYBUILDING

ANNEXBUILDING

OUTSIDE AIR

OUTSIDE AIR

PLANTVENT

R

R

M C R

16"

36"36"

16"16"

4,000 CFM SUPPLY AHU A

OUTSIDE AIR

16"4,000 CFM SUPPLY AHU B

OUTSIDE AIR

CONTAINMENT

36" 36"

ILR

T

Slide 8

Radiologically Controlled Area Ventilation System

Fuel Handling Area Subsystem

50% CAPACITY

ELEVATORMACHINE

FUEL HANDLING AREA

RE50% CAPACITY SUPPLY AHU A

50% CAPACITY SUPPLY AHU B

INT

AK

E P

LE

NU

M

ROOM

RAILCAR BAY/FILTERSTORAGE AREA ANDSPENT RESIN ROOMS

OA

OA

EXHAUST FAN A

50% CAPACITYEXHAUST FAN B

PLANT VENT

VFS FILTEREDEXHAUST

Slide 9

Radiologically Controlled Area Ventilation System (VAS)

Aux/Annex Building Subsystem

50% CAPACITY

RE

50% CAPACITY SUPPLY AHU A

50% CAPACITY SUPPLY AHU B

INT

AK

E P

LE

NU

M

CONTAINMENTSTAGING AREAS

AND ADJAENT ROOMSOA

OA

EXHAUST FAN A

50% CAPACITYEXHAUST FAN B

PLANT VENT

VFS FILTEREDEXHAUST

AUXILIARYBUILDING

TO SUIT DUCT LAYOUT

VFS FILTEREDEXHAUST

ANNEXBUILDING RE