Gas Turbine Filter Test System
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Test System for testing air intake filter systems for rotary machinery (ISO 29461). The test system for testing air intake filter systems for rotary machinery is based on the well-established filter test system for general air filters (ISO 16890) and extended to fulfil the specifications of ISO 29461.
It was developed with the aim of testing filters with different shapes (filter cartridges, cassette filter, filter with filter bags and plane filter media) using varying test aerosols (salt, oil) under adjustable air conditions (air humidity, temperature) within the test duct. By using the test system the following filter characteristics can be determined: differential pressure curves, dust holding capacity, gravimetric efficiency, fractional efficiency, salt removal efficiency (ISO/AWI 29461-4) and water endurance (ISO 29461-2).
Technical data
| Parameter | Unit | Value |
|---|---|---|
| Test flow rate | m³/h | 800 … 11,000 |
| Test aerosol | – | DEHS, KCl, Ashrae, ISO 12103-A2 (AC fine), ISO 12103-A4 (AC coarse) |
| Test specimen dimensions | – | 610 × 610 mm (pocket and cassette filters); diameter ≤ 400 mm, length ≤ 1500 mm (filter cartridges) |
| Differential pressure of test specimen | Pa | max. 2000 |
| Compressed air supply (operating gas/air) | bar | min. 5 (17 m³/h) |
| Water supply (operating medium) | bar | min. 3 |
| Power supply | – | 3 × 400 VAC, 125 A, 50 Hz |
| Air circulation | % | 0 … 100 |
| Sensors (others) | – | Temperature, relative humidity, air pressure |
| System dimensions (W × H × D) | m | 4.6 × 1.7 × 14.0 |
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