10-10
Page 15
2008-10-01
Table 3. Grains of Water Per Cubic Foot – Saturated Air (100% rh)
(2)
Formula 2
Assume our printing plant is located in Denver, Colorado. From Table 4, the worst
case is -10
°
F with 37% rh
From Table 3:
0.29 gr/ft
3
x 37% rh - 0.11 gr/ft
3
Combining this result with that of Moisture Required (A) we see that we will need
5.19 - 0.11 = 5.08 grains of moisture for every cubic foot of outside air brought in.
E.
INCOMING AIR VOLUME
(1) The following outlines the steps necessary to determine the amount of outside air being
brought into the humidified space and the corresponding amount of moisture required.
There are three basic means by which outside air is introduced into the humidified
space. These are:
(a) Through natural ventilation, for example, opening and closing doors and windows,
and by infiltration through cracks and openings in the building construction.
(b) Through mechanical ventilation, for example, the introduction of make-up air, or
the exhausting of stale air by the building HVAC system.
(c) Through the economizer section of the HVAC system - if this feature is included in
the system.
(2) For maximum accuracy, all three should be estimated and the largest chosen.
°C
°F
Grains
°C
°F
Grains
°C
°F
Grains
°C
°F
Grains
°C
°F
Grains
°C
°F
Grains
-23
-10
.29
4
40
2.86
58
5.41
76
9.75
35
95
17.28
114
29.34
-5
.35
41
2.97
59
5.60
77
10.06
96
17.80
115
30.13
-18
0
.48
42
3.08
16
60
5.80
78
10.40
97
18.31
49
120
34.38
8
.61
43
3.20
61
6.00
79
10.80
98
18.85
125
39.13
-12
10
.78
44
3.32
62
6.20
27
80
11.04
99
19.39
54
130
44.41
-9
15
.99
7
45
3.44
63
6.41
81
11.40
38
100
19.95
135
50.30
-7
20
1.24
46
3.56
64
6.62
82
11.75
101
20.52
60
140
56.81
-4
25
1.56
47
3.69
18
65
6.85
83
12.11
102
21.11
145
64.04
-1
30
1.95
48
3.83
66
7.07
84
12.49
103
21.71
66
150
72.00
31
2.04
49
3.97
67
7.31
29
85
12.87
104
22.32
155
80.77
32
2.13
10
50
4.11
68
7.57
86
13.27
41
105
22.95
71
160
90.43
33
2.21
51
4.26
69
7.80
87
13.67
106
23.60
165 101.00
34
2.29
52
4.41
21
70
8.10
88
14.08
107
24.26
77
170 112.60
2
35
2.38
53
4.56
71
8.32
89
14.51
108
24.93
175 125.40
36
2.47
54
4.72
72
8.59
32
90
14.94
109
25.62
82
180 139.20
37
2.56
13
55
4.89
73
8.87
91
15.39
43
110
26.34
185 154.30
38
2.66
56
5.06
74
9.15
92
15.84
111
27.07
88
190 170.70
39
2.76
57
5.23
24
75
9.45
93
16.31
112
27.81
195 188.60
94
16.79
113
28.57
Summary of Contents for NHPC
Page 1: ...2538144 B NH Series NHTC NHPC ELECTRODE STEAM HUMIDIFIER Engineering Manual TM ...
Page 9: ...10 00 Page 1 2008 10 01 10 00 INTRODUCTION ...
Page 10: ...10 00 Page 2 2008 10 01 Figure 1 NHTC ...
Page 13: ...10 00 Page 5 2008 10 01 Figure 2 Optimum Boiling Time Figure 3 Conductivity ...
Page 18: ...10 00 Page 10 2008 10 01 Figure 6 Typical NHRS Installation Sheet 1 of 2 ...
Page 19: ...10 00 Page 11 2008 10 01 Figure 7 Typical NHRS Installation Sheet 2 of 2 ...
Page 20: ...10 10 Page 12 2008 10 01 10 10 HUMIDITY STEAM ABSORPTION AND DISTRIBUTION ...
Page 35: ...10 10 Page 27 2008 10 01 Figure 2 Psychrometric Chart ...
Page 64: ...10 10 Page 56 2008 10 01 Figure 30 NORTEC OnLine Monitoring ...
Page 71: ...10 20 Page 63 2008 10 01 10 20 SPECIFICATIONS ...
Page 81: ...10 30 Page 73 2008 10 01 10 30 SUBMITTALS ...
Page 86: ...10 30 Page 78 2008 10 01 Figure 2 Primary Line Voltage Wiring to Unit ...
Page 87: ...10 30 Page 79 2008 10 01 Figure 3 Physical Data NHTC NHPC 005 030 ...
Page 88: ...10 30 Page 80 2008 10 01 Figure 4 Physical Data NHTC NHPC 050 100 ...
Page 89: ...10 30 Page 81 2008 10 01 Figure 5 Physical Data NHTC NHPC 150 200 ...
Page 96: ...10 30 Page 88 2008 10 01 Figure 12 In Duct AHU Installation With Mounting Frame Installation ...
Page 98: ...10 30 Page 90 2008 10 01 Figure 13 In Duct AHU Installation With Mounting Frame Installation ...
Page 100: ...10 30 Page 92 2008 10 01 Figure 16 Atmospheric SAM e Adapter Dimensions ...
Page 101: ...10 30 Page 93 2008 10 01 Figure 17 Atmospheric Steam Header and Adapter Configuration ...
Page 102: ...10 30 Page 94 2008 10 01 Figure 18 Physical Data for Remote Mounted Blower Pack ...
Page 103: ...10 30 Page 95 2008 10 01 Figure 19 Physical Data Units with Optional Built On Blower Packs ...
Page 104: ...10 30 Page 96 2008 10 01 Figure 20 Physical Data Units with Optional Built On Blower Packs ...