Deep Water Towing Tank Seakeeping and Manoeuvring Basin
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Aerodynamics Laboratory > Air Filters Test Stand


The main purpose of the stand is to test air filters for internal combustion engines, as well as to investigate the filtering qualities of various input materials used for air filters' production..

The stand is equipped with a fan with nominal parameters as follows:

Pressure ๐ = 9500 - 10000 ะเ

Flow rate qv = 6 - 10 m3/min

The flow rate regulation in the working section is smoothly realized without disturbing the fan's nominal regime.

The stand is fitted with a special dosing device supplying standard quartz sand which serves as dusting agent during the tests.

Hydraulics characteristics, cleaning rate, absorbing ability of the air filter, filters and filtering elements could be investigated using the stand.

The stand permits calibration of throttle flowmeters, determination of the local resistance coefficients of pipelines and fittings.





* Aerodynamics Laboratory

* Wind Tunnel

* Air Filters Test Stand

* Multifunctional Aerodynamic Stand

* Educational Centre


Bulgarian Ship Hydrodynamics Center ,

9003 Varna , kv.Asparuhovo ,
1 William Froude Str. , P.O.Box 58

Tel : +359 52 3705 00

Fax : +359 52 3705 14

E-mail :






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Last updated 29 August 2014   

Bulgarian Academy of Sciences