Fading grid on green Commercial Building Ventilation and Indoor Environmental Quality
Table 5 Results of field measurements of air exchange effectiveness, air diffusion effectiveness, and normalized local ventilation rate by authors and colleagues.

Reference,
Bldg. #

Building or Space Description

Test #

% Outside Air

Air Exchange Effectiveness

Air Diffusion Effectiveness

Normalized Local Age of Air

AEEG

AEEBL

Min. - Max.

Fisk et al 1988

Bldg #1

5th fl. office area, 430 m2, CV, induction units supply at 1 m height at perimeter, small AHUin plenum supplies through ceiling SD in core, all return & exhaust grills at one end of floor

-

constant supply of 100% outside air to induction units

-

1.4

1.2

1.2-1.5

Fisk et al 1988,

Bldg #1

6th fl., otherwise same as above

-

same as above

-

1.3

-

1.1-1.6

Fisk et al 1988,

Bldg. B2 & B3

two interconnected office bldgs. served by same VAV AHU, 4400 2, RG

1

2

3

17 (min)

29 (min)

31 (min)

1.4

1.1

1.2

1.1

1.0

0.9

-

-

1.0

1.0-1.4

0.8-1.3

0.8-1.1

Fisk et al 1988,

Bldg B4

Office bldg connected to B2 & B3, 2400 m 2, one VAV AHU, ceiling SD & RG

1

2

3

22 (min)

24 (min)

24 (min)

1.0

1.3

1.3

0.9

1.1

1.0

-

-

-

0.9-1.0

0.9-1.1

0.9-1.1

Fisk et al 1991,

Bldg 3

University office bldg, 7200 m2, CV with 15 supply fans, ceiling SD & RG

3

5

min +

min +

-

-

-

-

-

-

-

-

Fisk et al 1991,

Bldg 5

Office area of science center, 3600 m2, CV, ceiling & high-wall SD &RG

3

5

7

87 (max)

36 (min)

38 (min)

1.3

-

-

1.4

0.9

-

-

-

1.0,1.6,1.4,1.2

0.8-3.6

0.6-1.1

0.7-1.0

Fisk et al 1989,

Bldg 6

Office bldg, 4100 m2, two VAV AHU with common return shaft, ceiling SD & RG

1

2

7

23,24 (min)

25,24 (min)

86, 80 (max)

1.1

1.2

1.1

1.2

1.0

1.0

1.1,1.0,1.0

1.1,1.1,1.0,1.0

1.5,1.1,1.3,1.1,1.2

1.1-1.7

0.6-1.3

0.5-1.8

Fisk et al 1991,

Bldg 7

Office bldg, 2000 m2, three VAV AHU, ceiling SD & RG

1

2

3

63,33,71 (max)

61,30,70 (max)

10,13,16 (min)

-

1.0

-

1.1

0.8

-

1.2,1.2

1.0,0.8,1.4,1.0

0.9,0.9,1.1,1.0

0.8-2.4

0.3-1.4

-

Fisk et al 1991,

Bldg 8

Office bldg, 950 m2office area, one VAV AHU, ceiling & high wall SG, ceiling RG, high infiltration, some supply air vented into return plenum

1

2

3

min +

min +

max +

-

-

-

-

-

-

1.2,1.0,0.8,1.3,1.1

1.2,1.1,1.2,1.1

1.1,1.0,1.0,1.1,1.0

-

-

-

Abbreviations: Bldg=Building; RG=return grill; SD=supply diffuser; min=minimum; max=maximum; occ=occupant; CV=constant volume; VAV=variable air volume; AHU=air handling unit.

Footnotes: +not measured.