Figure 2: Patient Room Cooling with Active Chilled Beam System

1 3 4 5

LEGEND1.) Heat recovery wheel (optional)3.) Cooling/dehumidifying coil4.) Heating coil5.) MERV 13 filter6.) Active chilled beam

Constant 6 ACH

2 ACH (100% OA)

2 ACH (100% exhaust)

T

PATIENT ROOM

71% cooling reduction before reheat

6

Space SensibleCooling Load(BTUH/FT )2

Ducted AirflowRate

(ACH )-1 (BTUH/FT )2

Water SideSensible Cooling

(BTUH/FT )2

25 (100%)

20 (80%)

15 (60%)

10 (40%)

5 (20%)

2.0

2.0

2.0

7.2

7.2

7.2

7.2

7.2

17.8

12.8

7.8

2.8

0

Airside SensibleCooling

2.0

2.0

Total SensibleCooling

(BTUH/FT )2

Space ReheatRequirement(BTUH/FT )2

0

5.2

25

20

15

10

22

0

0

0

T

Min. 6 ACH

1

2

3 4 5

12% cooling reduction before reheat

PATIENT ROOM

LEGEND1.) Heat recovery wheel (optional)2.) Mixing section3.) Cooling/dehumidifying coil4.) Heating coil5.) MERV 13 filter6.) VAV terminal with reheat

6

Space SensibleCooling Load(BTUH/FT )2

Ducted AirflowRate

(ACH )-1 (BTUH/FT )2

Space ReheatRequirement(BTUH/FT )2

25 (100%)

20 (80%)

15 (60%)

10 (40%)

5 (20%)

6.9

6.0

6.0

6.0

6.0

25

22

22

22

22

0

2

7

12

17

SensibleCooling Delivery

Figure 1: Patient Room Cooling with All-air System

Constant 6 ACH