Handbook of air conditioning and refrigeration / Shan K

17.30
TABLE 17.8 (Continued)
One side, Side
rectangular
Adjacent side, in.
rectan-
gular
duct, in. 32 34 36 38 40 42 44 46 48 50 52 56 60 64 68 72 76 80 84 88 duct
52 44.3 45.7 47.1 48.4 49.7 51.0 52.2 53.4 54.6 55.7 56.8 52
54 45.1 46.5 48.0 49.3 50.7 52.0 53.2 54.4 55.6 56.8 57.9 54
56 45.8 47.3 48.8 50.2 51.6 52.9 54.2 55.4 56.6 57.8 59.0 61.2 56
58 46.6 48.1 49.6 51.0 52.4 53.8 55.1 56.4 57.6 58.8 60.0 62.3 58
60 47.3 48.9 50.4 51.9 53.3 54.7 60.0 57.3 58.6 59.8 61.0 63.4 65.6 60
62 48.0 49.6 51.2 52.7 54.1 55.5 56.9 58.2 59.5 60.8 62.0 64.4 66.7 62
64 48.7 50.4 51.9 53.5 54.9 56.4 57.8 59.1 60.4 61.7 63.0 65.4 67.7 70.0 64
66 49.4 51.1 52.7 54.2 55.7 57.2 58.6 60.0 61.3 62.6 63.9 66.4 68.8 71.0 66
68 50.1 51.8 53.4 55.0 56.6 58.0 59.4 60.8 62.2 63.6 64.9 67.4 69.8 72.1 74.3 68
70 50.8 52.5 54.1 55.7 57.3 58.8 60.3 61.7 63.1 64.4 65.8 68.3 70.8 73.2 75.4 70
72 51.4 53.2 54.8 56.6 58.0 59.6 61.1 62.5 63.9 65.3 66.7 69.3 71.8 74.2 76.5 78.7 72
74 52.1 53.8 55.5 57.2 58.8 60.3 61.9 63.3 64.8 66.2 67.5 70.2 72.7 75.2 77.5 79.8 74
76 52.7 54.5 56.2 57.9 59.5 61.1 62.6 64.1 65.6 67.0 68.4 71.1 73.7 76.2 78.6 80.9 83.1 76
78 53.3 55.1 56.9 58.6 60.2 61.8 63.4 64.9 66.4 67.9 69.3 72.0 74.6 77.1 79.6 81.9 84.2 78
80 53.9 55.8 57.5 59.3 60.9 62.6 64.1 65.7 67.2 68.7 70.1 72.9 75.4 78.1 80.6 82.9 85.2 87.5 80
82 54.5 56.4 58.2 59.9 61.6 63.3 64.9 66.5 68.0 69.5 70.9 73.7 76.4 79.0 81.5 84.0 86.3 88.5 82
84 55.1 57.0 58.8 60.6 62.3 64.0 65.6 67.2 68.7 70.3 71.7 74.6 77.3 80.0 82.5 85.0 87.3 89.6 91.8 84
86 55.7 57.6 59.4 61.2 63.0 64.7 66.3 67.9 69.5 71.0 72.5 75.4 78.2 80.9 83.5 85.9 88.3 90.7 92.9 86
88 56.3 58.2 60.1 61.9 63.6 65.4 67.0 68.7 70.2 71.8 73.3 76.3 79.1 81.8 84.4 86.9 89.3 91.7 94.0 96.2 88
90 56.8 58.8 60.7 62.5 64.3 66.0 67.7 69.4 71.0 72.6 74.1 77.1 79.9 82.7 85.3 87.9 90.3 92.7 95.0 97.3 90
92 57.4 59.3 61.3 63.1 64.9 66.7 68.4 70.1 71.7 73.3 74.9 77.9 80.8 83.5 86.2 88.8 91.3 93.7 96.1 98.4 92
94 57.9 59.9 61.9 63.7 65.6 67.4 69.1 70.8 72.4 74.0 75.6 78.7 81.6 84.4 87.1 89.7 92.3 94.7 97.1 99.4 94
96 58.4 60.5 62.4 64.3 66.2 68.0 69.7 71.5 73.1 74.8 76.3 79.4 82.4 85.3 88.0 90.7 93.2 95.7 98.1 100.5 96
Source: ASHRAE Handbook 1989, Fundamentals. Reprinted with permission.