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Swirl Diffusers - 17 Pages
Diagrams 21 to 24:
Permitted volume flow ranges
see Selection Table Page 6.
Diagrams 21 to 24 are applicable to configurations
with discharge nozzle. The following corrections should
be used for configurations without discharge nozzle:
'H1
At |_/At z
xO.84 xl.20 xl.18
21 Diffuser arrangement: more than one row
if B = 2.80 m
H, = 0.9 1.2 1.6 2m
I/8 | (ms/h) | ||||||||
\ | |||||||||
/ \ | |||||||||
0.7 1
1.5 2
3 4 5 6m
Spacing A -
22 Diffuser arrangement: single or more than one row
if B a 4.00 m
H, = 0.9 1.2 1.6 2m
23 Air velocity at the wall and temperature quotient
A = 0.5 1 2 3m
0.7 1 1.5 2 3 5 7 10m
Distance L — &—■
24 Square diffuser
H, = 0.9 1.2 1.6 2.0m
1.0 1.5 2.0 3.0 4.0 6.0m
Spacing A or B -gr--
13
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P. 1
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P. 8
Acoustic Data Correction to Diagram 3: Damper angleBlade angle0°45°90°Ap,x 1x 1.2x2.4 + 1+ 3 + 1+ 3 Correction... -
P. 9
Acoustic Data Correction to Diagram 7: Damper angle Correction to Diagram 9: Damper angle Blade angle 0° ... -
P. 10
Acoustic DataExampleData given:·Volume flow per diffuserV = 30 l/sSupply air temperature differential ͬ t Z = – 8 KSound pressure level... -
P. 11
Air velocity at a distance 75 mm from the wall vL = 0.21 m/s L = X+H1 = 2.90 m L = A/2 + H1 = 2.90 m AtL/Atz = 0.019 At |_ = 0.019 x (-8)... -
P. 12
Aerodynamic Data RFD 160 Diagrams 17 to 20: Permitted volume flow ranges see Selection Table Page 6. Diagrams 17 to 20 are applicable to... -
P. 13
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P. 14
Diagrams 25 to 28: Permitted volume flow ranges see Selection Table Page 6. Diagrams 25 to 28 are applicable to configurations with discharge... -
P. 15
Aerodynamic Data RFD 315 Diagrams 29 to 32: Permitted volume flow ranges see Selection Table Page 6. Diagrams 29 to 32 are applicable to... -
P. 16
Diagrams 33 to 36: Permitted volume flow ranges see Selection Table Page 6. Diagrams 33 to 36 are applicable to configurations with discharge... -
P. 17
Order DetailsSpecification TextMaterials:The diffuser face and plenum box are made from sendzimirgalvanised sheet steel.The lip seal is made from black...
