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Test System for dusting solar cell modules | Soiling Tester,Soiling and Abrasion in Photovoltaics Test System

Whats/App: +86 156 1874 6768

Web: standard-groups.com

The test system serves laboratory testing according to VDI 3956 (Test method for the dust soiling behaviour of solar energy systems).

This includes tests on the behaviour of glass surfaces under the influence of dusting, changing air humidity and glass temperature and the resulting condensation effects as well as cleaning by wind.

Experiments on other test specimens exposed to these environmental conditions are also possible.

Applications

tests according to VDI 3956

temperature-dependent dusting and cleaning tests of other types of samples

Standard

VDI 3956-1

Technical data

ParameterUnitValue
Air flow velocity m/s ≤ 15
Test specimen dimensions mm Thickness ≤ 10
Specimen holder Base area 200 × 200 mm; setting angle 0 … 60° (discrete)
Test conditions Environmental temperature and relative humidity (controlled)
Compressed air supply (operating gas/air) bar 6 … 10 (quality class ISO 8573-1:2010 [6:4:2])
Power supply 3 – TN-C-S network/PEN; 400 VAC, 50 Hz
Test chamber dimensions mm 700 × 720 × 700
Aerosol generation technology Dust disperser SAG 410
Power consumption W max. 6000
Noise emission dB(A) LpA ≤ 76.7 ± 1.5
Dimensions (W × H × D) mm 2107 × 890 × 1647
Weight kg approx. 450 (including devices)

Features

adjustable angle of the sample holder

selectable dust dosing positions

data logger

largely automated processes

optimised handling

Principle

The test specimen is mounted on a sample holder in an air lock and then drawn into the preconditioned main chamber. The air lock prevents the dust-containing atmosphere from entering the environment. The desired angle of the specimen is set (up to 60° to the horizontal). The environmental scenarios to be investigated are imitated using the following equipment:

- dusting using generator with dual-positionable nozzle

- temperature control of sample holder: with heating mat/cooling unit

- blowing off the sample using a movable air blade

When air is introduced into the chamber by dust dosing, humidification or sample cleaning, a negative pressure must be present in the chamber to prevent the emission of dust into the atmosphere.

Maintenance Information

Regularly clean the dust generator and chamber interior to ensure consistent test conditions.

Check seals and air-lock components to maintain negative pressure integrity.

Verify airflow velocity, temperature, and humidity sensors periodically.

Inspect compressed air quality to comply with ISO 8573-1 requirements.

Perform routine system calibration according to laboratory quality procedures.


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