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Axial innen engl - TLT Turbo GmbH

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Am Weinberg 68 · D-36251 Bad Hersfeld/Germany<br />

Phone: +49.6621.950-0 · Fax: +49.6621.950-100<br />

˙V = Volume flow [m 3 /h] or [m 3 /s]<br />

pd = Dynamic pressure [Pa] or x 0.1 [kp/m 2 ]<br />

c = Flow velocity [m/s]<br />

Total pressure increase �pt [Pa] ➞<br />

2800<br />

2500<br />

2240<br />

2000<br />

1800<br />

1600<br />

1400<br />

1250<br />

1120<br />

1000<br />

900<br />

with duct 2.5 D<br />

direct outlet<br />

Shaft power input requirement<br />

·<br />

V [m<br />

Pw [kW] = =<br />

3 ·<br />

/h] · �pt [Pa]<br />

�· 1000 · 3600<br />

5°<br />

0°<br />

50 000<br />

14<br />

11,2<br />

80<br />

16<br />

160<br />

0,66<br />

56 000<br />

16<br />

12,5<br />

100<br />

18<br />

200<br />

0,76<br />

63 000<br />

18<br />

14<br />

125<br />

20<br />

250<br />

CHARACTERISTIC CURVES – AXIAL FLOW FANS<br />

DIRECT DRIVE, WITH OUTLET GUIDE VANES<br />

TYPE AXN 12/56/1250/D*<br />

ROTATIONAL SPEED 1450 RPM<br />

Tip speed u 2 = 95 m/s<br />

Temperature t = 20° C<br />

Density = 1.2 kg/m 3<br />

71 000<br />

20<br />

16<br />

160<br />

22,4<br />

315<br />

0,81<br />

80 000<br />

22,4<br />

18<br />

200<br />

25<br />

400<br />

90 000<br />

25<br />

20<br />

250<br />

28<br />

500<br />

10° 15°<br />

0,86<br />

100 000<br />

28<br />

22,4<br />

315<br />

31,5<br />

630<br />

112 000<br />

31,5<br />

25<br />

400<br />

35,5<br />

800<br />

125 000<br />

35,5<br />

28<br />

500<br />

40<br />

1000<br />

Moment of inertia I = 6.25 kg m 2<br />

Casing diameter d.i.L. = 1261 mm<br />

Outlet cross section A 2 = 1.25 m 2<br />

140 000<br />

40<br />

31,5<br />

630<br />

45<br />

1250<br />

160 000<br />

45<br />

35,5<br />

800<br />

50<br />

1600<br />

180 000<br />

50<br />

40<br />

1000<br />

56<br />

2000<br />

A 1 = 1.07 m 2<br />

200 000<br />

56<br />

45<br />

1250<br />

63<br />

2500<br />

122<br />

121<br />

120<br />

119<br />

118<br />

117<br />

116<br />

115<br />

114<br />

113<br />

112<br />

124<br />

[m 3/h] ➞<br />

[m 3/s] ➞<br />

c [m/s] ➞<br />

pd [Pa] ➞<br />

c [m/s] ➞<br />

pd [Pa] ➞<br />

* Airflow direction D (motor in outlet) – Please inquire for Airflow direction S (motor in inlet) Values rounded to standard figures.<br />

0,89<br />

0° 0° 5° 5° 10° 10° 15°<br />

15°<br />

20°<br />

η = 0,80<br />

20°<br />

0,57<br />

20°<br />

25°<br />

0,77<br />

pd<br />

25°<br />

25°<br />

0,72<br />

0,67<br />

30°<br />

35°<br />

30°<br />

pd<br />

35°<br />

Blade Schaufelwinkel pitch angle<br />

Total acoustic power level L w [dB]

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