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Our means: Experimental platforms: acoustics of ventilation and air conditioning appliances |
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CETIAT has a double air conditioned reverberation chamber available.
It also has equipments adapted to measurement of acoustic power
by sound intensity method
and by in-duct method.
Tested appliances
- air conditioning units:
• "split" air conditioners, mobile air-conditioner, fan coil units
• air handling units, chillers, heat pumps
- ventilation elements
• air diffusers, air inlets, air transfer devices, mechanical exhaust ventilation systems
• little construction elements for surfaces < 1m2
Platform performance:
- overall background noise level (100 - 10 kHz) < 19 dB (A)
- acoustic insulation standardised Dn,e up to 51 dB (A)
- cooling capacity up to 40 kW
- water flow rates up to 5 m3/h
- air flow rates up to 10000 m3/h
Performed measurements:
- simultaneous acoustic power measurements in the 2 chambers (in one-third octave bands)
- standard sound insulation
- acoustic absorption
- air flow rates
- thermal capacity
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