Challenges DRISHTI
Design Manufacturing of Low Noise Compact Axial Fan
Development of Axial fans with reduced noise and smaller form factor for Airborne Applications. The Spec for Axial Fans is given below.1. Application: Communication equipment for Airborne military applications
2. Size: 60mm x 60mm x 38mm (max dimensions including projections)3. Weight: Not more than 175gm
4. *Rated Max Flow rate: 87 CFM
5. Operating flow rate:60cfm @ 300Pa
6. Fan supply voltage:DC supply specifications: I. Nominal operating voltage: 28V DC II. Operating voltage range: 16V to 32V DC III. Current at rated voltage: 2A (max) AC supply specifications: I. Operating voltage: 115V AC II. Frequency: 400Hz III. Phase: 1 phase or 3 phase** IV. Rated power: No specific limitation7. Installation type: Circular or Square flange (preferable mounting hole dimension: φ 4.5 holes)
8. Operating temperature range: -400C to +710C
9. Storage temperature range: -550C to +850C
10. Noise: not more than 65 dB(A)
11. Speed control is desirable. *Rated max flow rate specification can be relaxed to meet noise specification. However, operating flow rate at desired pressure must be met without any compromise **Line voltage for 3 Phase fan is 200V
