Axial innen engl - TLT Turbo GmbH

Am Weinberg Weinberg 68 · D-36251 Bad Hersfeld/Germany
Hersfeld/Germany
Phone: Tel.: +49.6621.950-0 +49.6621.950-0 · · Fax: +49.6621.950-100
Instruction for using the characteristic
curve sheet:
Given:
Volume flow V · = 14 m3/s Totel pressure
increase �pt = 1000 Pa
(ca. 100 kp/m2) Density = 1.2 kg/m 3
Temperature t = 20 °C
Speed n = 1450 rpm
Sought:
Fan size, power input requirement,
overall acoustic power level
Selected:
Axial-flow fan
Typ AXN 12/56/900/M-D
(direct-drive)
Specifications:
Peripheral speed u = 67 m/s
Flow velocity c = 22.4 m/s
Efficiency � = 76%
Shaft power
input:
�
·
V ·�pt 50000 · 1000
P w = = =18.27 kW
� · 1000 · 3600 0.76 · 1000 · 3600
Recommended
motor output P M = 22 kW
Total acoustic
power level L W = 103.5 dB
All fans are available only with the
motor outputs stated in our price
lists.
AXIAL FLOW FANS – AXN SERIES
DIRECT DRIVE
SELECTION EXAMPLE
(FAN OUTLET INTO DUCT)
TURBO LUFTTECHNIK GMBH
Business Unit Standard Fans
BABCOCK BSH System
Am Postfach Weinberg 1234 68 · · 36222 D-36251 Bad Bad Hersfeld/Germany
Tel.: + +49.6621.950-0 49.6621.950-0 · · Fax: +49.6621.950-100
+ 49.6621.950-100
Key to the type designations:
AXN 12 / 56 / 900 / M – D
2D08026
Airflow direction D, motor in outlet
Type M (directly coupled motor)
Size (nominal design size)
Hub ratio
(outer impeller dia. / hub dia.)
Impeller with 12 blades
With outlet guide vanes
Axial-flow fan
038
Blade pitch angle