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ATEC/Indirex |
Water Evaporation Rate / Air Stream Moisture Addition - Worksheet |
www.HaveACoolDay.com |
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Evaporative Cooling Equipment / Innovation |
MoistureAdditionEC.xls |
Updated: |
Jan-01 |
Ph: 303.816.7075 |
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All calculations based on sea level psychrometric chart |
Fx: 303.838.9651 |
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Design Conditions |
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Dry Bulb Temperature |
110 |
110 |
105 |
105 |
100 |
100 |
100 |
95 |
95 |
95 |
90 |
90 |
85 |
85 |
80 |
80 |
80 |
75 |
75 |
70 |
70 |
oF |
Wet Bulb Temperature |
75 |
70 |
75 |
70 |
75 |
70 |
65 |
70 |
65 |
60 |
65 |
60 |
65 |
60 |
65 |
60 |
55 |
60 |
55 |
60 |
55 |
oF |
Ralative Humidity |
19.5% |
12.5% |
25.0% |
16.5% |
31.5% |
22.0% |
13.0% |
28.5% |
18.0% |
9.0% |
25.0% |
14.5% |
34.0% |
21.0% |
45.0% |
30.0% |
16.5% |
41.0% |
25.0% |
56.0% |
38.0% |
|
Humidity Ratio |
0.0106 |
0.0066 |
0.0118 |
0.0077 |
0.0130 |
0.0089 |
0.0052 |
0.0100 |
0.0064 |
0.0031 |
0.0075 |
0.0043 |
0.0087 |
0.0054 |
0.0098 |
0.0065 |
0.0036 |
0.0077 |
0.0047 |
0.0088 |
0.0058 |
LBm/LBd |
Specific Volume |
14.60 |
14.50 |
14.50 |
14.40 |
14.40 |
14.30 |
14.20 |
14.20 |
14.15 |
14.05 |
14.00 |
13.90 |
13.90 |
13.80 |
13.60 |
13.75 |
13.70 |
13.65 |
13.60 |
13.55 |
13.45 |
Ft3/LBd |
6" Depth Kuul Media |
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6" Effectiveness |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
72% |
|
Supply Air Temperature |
84.8 |
81.2 |
83.4 |
79.8 |
82.0 |
78.4 |
74.8 |
77.0 |
73.4 |
69.8 |
72.0 |
68.4 |
70.6 |
67.0 |
69.2 |
65.6 |
62.0 |
64.2 |
60.6 |
62.8 |
59.2 |
oF |
Supply Rel. Humidity |
63.0% |
58.0% |
68.0% |
62.0% |
73.0% |
66.0% |
59.0% |
71.0% |
64.0% |
57.0% |
69.0% |
62.0% |
74.0% |
67.0% |
80.0% |
72.5% |
65.0% |
79.0% |
70.0% |
86.0% |
78.0% |
|
Supply Humid Ratio |
0.0165 |
0.0142 |
0.0168 |
0.0135 |
0.0172 |
0.0138 |
0.0110 |
0.0142 |
0.0114 |
0.0089 |
0.0116 |
0.0092 |
0.0120 |
0.0095 |
0.0122 |
0.0098 |
0.0076 |
0.0101 |
0.0080 |
0.0105 |
0.0083 |
LBm/LBd |
Specific Volume |
14.10 |
13.90 |
14.05 |
13.90 |
14.05 |
13.85 |
13.70 |
13.80 |
13.70 |
13.55 |
13.65 |
13.50 |
13.60 |
13.50 |
13.60 |
13.45 |
13.30 |
13.40 |
13.25 |
13.40 |
13.25 |
Ft3/LBd |
Air Volume (cfm) |
Water Evaporation Rate / Air Stream Moisture Addition in Gallons per hour |
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2,100 |
6.2 |
8.1 |
5.3 |
6.2 |
4.5 |
5.3 |
6.3 |
4.5 |
5.4 |
6.4 |
4.5 |
5.4 |
3.6 |
4.5 |
2.7 |
3.7 |
4.5 |
2.7 |
3.7 |
1.9 |
2.8 |
gal/hr |
5,000 |
14.8 |
19.3 |
12.6 |
14.8 |
10.6 |
12.5 |
15.0 |
10.8 |
12.9 |
15.1 |
10.7 |
12.9 |
8.6 |
10.8 |
6.4 |
8.7 |
10.7 |
6.4 |
8.9 |
4.5 |
6.7 |
gal/hr |
8,750 |
25.9 |
33.7 |
22.1 |
25.8 |
18.6 |
21.9 |
26.2 |
18.9 |
22.6 |
26.5 |
18.7 |
22.5 |
15.1 |
18.9 |
11.1 |
15.3 |
18.7 |
11.2 |
15.5 |
8.0 |
11.8 |
gal/hr |
8" Depth Kuul Media |
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8" Effectiveness |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
80% |
|
Supply Air Temperature |
82.0 |
78.0 |
81.0 |
77.0 |
80.0 |
76.0 |
72.0 |
75.0 |
71.0 |
67.0 |
70.0 |
66.0 |
69.0 |
65.0 |
68.0 |
64.0 |
60.0 |
63.0 |
59.0 |
62.0 |
58.0 |
oF |
Supply Rel. Humidity |
73% |
68% |
76% |
71% |
80% |
75% |
70% |
78% |
73% |
68% |
77% |
71% |
81% |
75% |
85% |
80% |
73% |
85% |
78% |
90% |
83% |
|
Supply Humid Ratio |
0.0172 |
0.0140 |
0.0174 |
0.0142 |
0.0176 |
0.0144 |
0.0116 |
0.0147 |
0.0119 |
0.0095 |
0.0121 |
0.0097 |
0.0123 |
0.0100 |
0.0126 |
0.0102 |
0.0081 |
0.0104 |
0.0084 |
0.0107 |
0.0086 |
LBm/LBd |
Specific Volume |
14.05 |
13.85 |
14.00 |
13.80 |
14.00 |
13.80 |
13.65 |
13.80 |
13.65 |
13.50 |
13.60 |
13.45 |
13.55 |
13.45 |
13.55 |
13.40 |
13.25 |
13.40 |
13.25 |
13.35 |
13.25 |
Ft3/LBd |
Air Volume (cfm) |
Water Evaporation Rate / Air Stream Moisture Addition in Gallons per hour |
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5,000 |
16.59 |
18.80 |
14.15 |
16.60 |
11.67 |
14.10 |
16.55 |
12.09 |
14.25 |
16.73 |
12.00 |
14.22 |
9.45 |
12.16 |
7.43 |
9.82 |
12.03 |
7.19 |
9.93 |
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