ENGINEERING MANUAL OF AUTOMATIC CONTROL
DAMPER SELECTION AND SIZING
453
Fig. 17. Typical (Opposed Blade) Damper Construction.
Fig. 18. Graphic Presentation of Leakage Performance.
Fig. 19. Low Leakage Dampers.
LINKAGE
ARM
LINKAGE
ROD
DUAL
LINKAGE ARM
LINKAGE ARM
AXLE SCREWS
THRUST
WASHER
DRIVE
AXLE
BLADE
AXLE
TRUNION
BEARING
DAMPER BLADE
HORIZONTAL
FRAME MEMBER
M10436
AXLE BEARING
VERTICAL
FRAME MEMBER
SIDE
SEAL
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.75
0.50
0.25
0
STATIC PRESSURE ACROSS
DAMPER (kPa)
LEAKAGE IN M
3
/s PER M
2
OF DAMPER AREA (M
2
/s)
LEAKAGE OF A SPECIFIC DAMPER DEPENDS UPON THE HEIGHT AND
WIDTH RELATIONSHIP AS WELL AS THE AREA. THE SHADED AREA
SHOWS THE RANGE OF LEAKAGE FOR A GIVEN AREA.
NOTE:
TORQUE APPLIED TO DAMPER = 6 Nm/m
2
OF DAMPER AREA
M15302
A-DIMENSION LEAKAGE L/s
B-DIMENSION LEAKAGE L/s
A DIMENSION
B DIMENSION
TOTAL LEAKAGE =
B-DIMENSION L A-DIMENSION LEAKAGE
WHERE:
A-DIMENSION = OUTSIDE DIMENSION PARALLEL TO
THE DAMPER BLADES
B-DIMENSION = OUTSIDE DIMENSION PERPENDICULAR
TO THE DAMPER BLADES
C3201
DAMPER SIZE IN INCHES
0.5
1.0
1.5
2.0
2.5
3.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
3.5
8.5
5
10
15
20
25
30
35
40
45
50
0
0.2
0.4
0.6
0.8
1.0
1.2
LEAKAGE VS DAMPER SIZE
APPLIED TORQUE 6 Nm
FROM ACTUAL TEST DATA
1.495 kPa STATIC
1.246 kPa STATIC
0.996 kPa STATIC
0.747 kPa STATIC
0.498 kPa STATIC
0.249 kPa STATIC
Содержание AUTOMATIC CONTROL SI Edition
Страница 1: ...AUTOMATIC CONTROL for ENGINEERING MANUAL of COMMERCIAL BUILDINGS SI Edition ...
Страница 4: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL iv ...
Страница 6: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL vi ...
Страница 11: ...SMOKE MANAGEMENT FUNDAMENTALS ENGINEERING MANUAL OF AUTOMATIC CONTROL 1 CONTROL SYSTEM FUNDAMENTALS ...
Страница 12: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL SMOKE MANAGEMENT FUNDAMENTALS 2 SMOKE MANAGEMENT FUNDAMENTALS ...
Страница 46: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 36 ...
Страница 66: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL PSYCHROMETRIC CHART FUNDAMENTALS 56 ...
Страница 128: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL ELECTRIC CONTROL FUNDAMENTALS 118 ...
Страница 158: ...MICROPROCESSOR BASED DDC FUNDAMENTALS 148 ENGINEERING MANUAL OF AUTOMATIC CONTROL ...
Страница 208: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL BUILDING MANAGEMENT SYSTEM FUNDAMENTALS 198 ...
Страница 209: ...SMOKE MANAGEMENT FUNDAMENTALS ENGINEERING MANUAL OF AUTOMATIC CONTROL 199 CONTROL SYSTEM APPLICATIONS ...
Страница 210: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL SMOKE MANAGEMENT FUNDAMENTALS 200 SMOKE MANAGEMENT FUNDAMENTALS ...
Страница 435: ...SMOKE MANAGEMENT FUNDAMENTALS ENGINEERING MANUAL OF AUTOMATIC CONTROL 425 ENGINEERING INFORMATION ...
Страница 436: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL SMOKE MANAGEMENT FUNDAMENTALS 426 SMOKE MANAGEMENT FUNDAMENTALS ...
Страница 493: ...INDEX ENGINEERING MANUAL OF AUTOMATIC CONTROL 483 INDEX ...
Страница 506: ...ENGINEERING MANUAL OF AUTOMATIC CONTROL INDEX 496 NOTES ...
Страница 507: ...INDEX ENGINEERING MANUAL OF AUTOMATIC CONTROL 497 NOTES ...
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