Absorption Coefficient Of Hardwood
Absorption coefficients are an average of how absorptive each product is at numerous frequencies generally at 500 hz 1000 hz and 2000 hz.
Absorption coefficient of hardwood. The length and pattern of the slots cut through the panels influence their absorption of soundwaves. For hackberry hardwood species the better sound absorption coefficient is identified in a wide frequency range of 2 khz 6 khz due to the presence of more pores and larger passageway. Slotted wood panels can be used on walls or ceilings to reduce the noise and echo within a room or building. Absorption transmission and reflection.
The noise reduction coefficient ranges between 0 40 and 0 75 depending on the slot pattern and installation. Generally speaking soft porous materials will be more absorptive than hard reflective surfaces. Hardwood burning was identified as the dominant source of carbonaceous aerosols. The measured aerosol absorption ångström exponent aae at 370 880 nm aae 370 880nm was 1 71 0 24.
Sound absorption coefficient greater than 1 01 sound absorption coefficient greater than 1 02.