Total Hours

total length of time test wall was in chamber

411

387

355

C-TEMP

weighted average of surface and joint TC's,
climate side (°F)

26.6

27.3

25.6

M-TEMP

weighted average of surface and joint TC's,
meter side (°F)

67.6

75.8

75.8

C-JOINT

24.9

28.3

26.2

M-JOINT

63.4

75.2

74.3

MA-AIR-T

average of 36 air TC's, meter side (°F)

75.2

79.6

80.0

M-BAF-T

average of 24 baffle TC's, meter side (°F)

72.8

78.5

78.8

C-AIR-T

average of 48 air TC's, climate side (°F)

22.3

26.9

24.9

C-BAF-T

average of 36 baffle TC's, meter side (°F)

23.4

27.6

25.6

M-AIR-VC

air velocity, meter side (MPH)

0.40

0.46

0.45

C-AIR-VC

air velocity, climate side (MPH)

3.25

3.15

3.14

∆T

temperature difference across sample wall

41.0

48.5

50.2

T(mean)

mean temperature across sample wall

47.1

51.5

50.7

Qmb

energy exchange through meter box walls (Btu/hr)

-0.003

0.006

0.006

Qmb fl

meter box flanking loss, determined by calibrations

4.853

4.836

4.836

Qwall

calculated energy flow through specimen wall
(Qwall - Qsurr)

649.9

307.1

331.0

Face-To-Face Rwall

surface to surface R-value of wall (hr*ft2*°F/Btu)

4.0

10.1

9.7

Air-To-Air Ru wall

overall R-value of sample wall (air-to-air),
Rms air + Rwall + Rcs air (hr*ft2*°F/Btu)

5.2

11.0

10.7

Rms air

meter side air film resistance (hr*ft2*°F/Btu)

0.747

0.788

0.796

Rcs air

climate side air film resistance (hr*ft2*°F/Btu)

0.420

0.403

0.412