GTS 114 Test System
Test System GTS 114 for testing air intake filter systems for rotary machinery (ISO 29461)
The test system GTS 114 for testing air intake filter systems for rotary machinery is based on the well-established ALF 114 filter test system for general air filters (ISO 16890) and extended to fulfil the specifications of ISO 29461.
The GTS 114 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).
Standards
ISO 29461-1
ISO 29461-2
ISO/AWI 29461-4
ISO/DIS 29461-7
ASHRAE 52.2
ISO 12103-1
ISO 16890-2
ISO 16890-3
ISO 16890-4
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product sheet GTS 114Benefits
- circulation mode for control of the test parameters temperature and humidity
- injection of different aerosols (NaCl, KCl, DEHS) into an optimal flow profile
- automated feeding of water droplets and supersaturated vapour
- high level of automation, mostly automated test runs with complete operator guiding
Applications
- testing of general air filters (ISO 16890, EN 779, ASHRAE 52.2)
- testing of gas turbine intake filter systems according to ISO 29461-2 and ISO/AWI 29461-4
A defined volume flow rate is sucked through a HEPA intake filter, the attached test duct and the safety filter. The test system is composed of 6 sections: aerosol inlet, upstream measurement, specimen holder, downstream measurement, safety filter and flow rate measurement. The measurement sections are equipped with ports for the aerosol characterization and the determination of the pressure drop.
| Parameter title | 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) |
| dimension of test specimen | - | 610 × 610 (pocket and casette filters); diameter ≤ 400, lenght ≤ 1500 (filter catridges) |
| differential pressure of test specimen | Pa | max. 2000 |
| operating medium, gas/air - compressed air supply | bar | min. 5 (17 m³/h) |
| operating medium, water - water supply | bar | min. 3 |
| power supply | - | 3 × 400 VAC, 125 A, 50 Hz |
| air circulation | % | 0 ... 100 |
| sensors, others | - | temperature, relative humidity, air pressure |
| dimensions (w × h × d) | m | 4,6 × 1,7 × 14,0 |
- aerosol substance DEHS
Silimar products
ALF 114
ALF 114 filter test system for general air filters according to ISO 16890, EN 779, ASHRAE 52.2
