
10-10
Page 44
2008-10-01
(6) Absorption Distances:
3" centers = 7" (18 cm)
6" centers = 9" (23 cm)
9" centers = 12" (31 cm)
12" centers = 18" (46 cm)
(7) Reference Figures 19, 20, 21 and 22 to determine the center-to-center spacing
required.
NOTES
1. The absorption distance data is based on 55°F (13°C) minimum temperature
before humidification.
2. Data is based on velocities between 200 fpm (101 cm/s) and
2500 fpm (1270 cm/s).
3. Absorption distance: This is the distance between the SAM-e and the first
obstruction (coil, elbow, damper, etc.) and the first obstruction steam may hit.
Traces of steam may pass this obstruction, but will not condense, leaving
obstructions dry.
4. If any of the duct AHU conditions are changed, the absorption distance may
change due to increase or decrease in duct temperatures, amount of fresh air,
various outside conditions, set point requirements, etc. If this occurs, re-calculate
the absorption distance, and determine if the SAM-e needs to be modified or
relocated.
C.
STATIC AIR PRESSURE
(1) Table 15 shows the static pressure loss created by a SAM-e in various velocities.
Table 15. Air Pressure Loss in AHU/Duct
D.
CONDENSATE LOSSES
(1) The SAM-e will condense some of the steam generated by the NORTEC humidifiers.
To compensate for this loss in capacity, we must increase the calculated humidification
load accordingly. Refer to Table 16.
Air Velocity fpm
(cm/s)
Air Pressure Loss (inches of water column)
SAM-e Tube Spacing
3" (7.6 cm)
6" (15.2 cm)
9" (22.7 cm)
12" (30.5 cm)
500 (255)
0.01 (0.02)
0.01 (0.02)
No measurable data
750 (383)
0.03 (0.08)
0.01 (0.02)
1000 (510)
0.05 (0.013)
0.02 (0.05)
1250 (638)
0.07 (0.18)
0.03 (0.08)
1500 (765)
0.09 (0.23)
0.04 (0.10)
0.01
0.01
1750 (893)
0.10 (0.25)
0.06 (0.15)
0.01
0.01
2000 (1020)
0.12 (0.30)
0.08 (0.20)
0.01
0.01
Содержание NHPC
Страница 1: ...2538144 B NH Series NHTC NHPC ELECTRODE STEAM HUMIDIFIER Engineering Manual TM ...
Страница 9: ...10 00 Page 1 2008 10 01 10 00 INTRODUCTION ...
Страница 10: ...10 00 Page 2 2008 10 01 Figure 1 NHTC ...
Страница 13: ...10 00 Page 5 2008 10 01 Figure 2 Optimum Boiling Time Figure 3 Conductivity ...
Страница 18: ...10 00 Page 10 2008 10 01 Figure 6 Typical NHRS Installation Sheet 1 of 2 ...
Страница 19: ...10 00 Page 11 2008 10 01 Figure 7 Typical NHRS Installation Sheet 2 of 2 ...
Страница 20: ...10 10 Page 12 2008 10 01 10 10 HUMIDITY STEAM ABSORPTION AND DISTRIBUTION ...
Страница 35: ...10 10 Page 27 2008 10 01 Figure 2 Psychrometric Chart ...
Страница 47: ...10 10 Page 39 2008 10 01 Figure 13 Humidification Distance Nomogram Figure 12 Cutting Duct For Mounting ...
Страница 58: ...10 10 Page 50 2008 10 01 Figure 26 Typical SAM e Installation for Atmospheric Steam Applications ...
Страница 64: ...10 10 Page 56 2008 10 01 Figure 30 NORTEC OnLine Monitoring ...
Страница 71: ...10 20 Page 63 2008 10 01 10 20 SPECIFICATIONS ...
Страница 81: ...10 30 Page 73 2008 10 01 10 30 SUBMITTALS ...
Страница 86: ...10 30 Page 78 2008 10 01 Figure 2 Primary Line Voltage Wiring to Unit ...
Страница 87: ...10 30 Page 79 2008 10 01 Figure 3 Physical Data NHTC NHPC 005 030 ...
Страница 88: ...10 30 Page 80 2008 10 01 Figure 4 Physical Data NHTC NHPC 050 100 ...
Страница 89: ...10 30 Page 81 2008 10 01 Figure 5 Physical Data NHTC NHPC 150 200 ...
Страница 95: ...10 30 Page 87 2008 10 01 Figure 11 In Duct AHU Installation Without Mounting Frame Installation ...
Страница 96: ...10 30 Page 88 2008 10 01 Figure 12 In Duct AHU Installation With Mounting Frame Installation ...
Страница 97: ...10 30 Page 89 2008 10 01 Figure 13 Outside Duct Installation Without Mounting Frame Installation ...
Страница 98: ...10 30 Page 90 2008 10 01 Figure 13 In Duct AHU Installation With Mounting Frame Installation ...
Страница 99: ...10 30 Page 91 2008 10 01 Figure 14 Vertical Duct Installation Figure 15 Outside Duct Mounting Cover Plates ...
Страница 100: ...10 30 Page 92 2008 10 01 Figure 16 Atmospheric SAM e Adapter Dimensions ...
Страница 101: ...10 30 Page 93 2008 10 01 Figure 17 Atmospheric Steam Header and Adapter Configuration ...
Страница 102: ...10 30 Page 94 2008 10 01 Figure 18 Physical Data for Remote Mounted Blower Pack ...
Страница 103: ...10 30 Page 95 2008 10 01 Figure 19 Physical Data Units with Optional Built On Blower Packs ...
Страница 104: ...10 30 Page 96 2008 10 01 Figure 20 Physical Data Units with Optional Built On Blower Packs ...