Moretti E.Merli F.Cuce E.Buratti C.20.04.20192019-04-2020.04.20192019-04-2020171876-6102https://dx.doi.org/10.1016/j.egypro.2017.03.209https://hdl.handle.net/20.500.12403/5178th International Conference on Sustainability in Energy and Buildings, SEB 2016The influence of granules size in silica aerogels is experimentally investigated in terms of thermal and acoustic performance characteristics. The transmission loss (TL) is measured at normal incidence in a traditional impedance tube, whereas the thermal conductivity (?) is evaluated using a Hot Plate apparatus, setting up an appropriate methodology, due to the nature of the sample. The results reveal that the small granules (granules size in the 0.01-1.2 mm range), which have the highest density, have the best performance both in terms of thermal and acoustic properties. Depending on the granules size, ? varies in 19-22 mW/mK range at 10°C, whereas a TL equal to 13 dB at about 6400 Hz for 20 mm thickness is obtained for small granules. © 2017 The Authors.eninfo:eu-repo/semantics/openAccessAcoustic insulationBuilding refurbishmentSilica aerogelThermal conducitivityThermal propertiesTransmission loss (TL)Acoustic impedanceAcoustic propertiesAerogelsElectric load lossGranulationSilicaSilica gelSound insulationSustainable developmentThermal insulationThermodynamic propertiesWave transmissionAcoustic performanceBuilding refurbishmentsImpedance tubesNormal incidenceSilica aerogelsSmall granulesThermal conducitivityTransmission lossThermal conductivityAcoustic insulationBuilding refurbishmentSilica aerogelThermal conducitivityThermal propertiesTransmission loss (TL)Acoustic impedanceAcoustic propertiesAerogelsElectric load lossGranulationSilicaSilica gelSound insulationSustainable developmentThermal insulationThermodynamic propertiesWave transmissionAcoustic performanceBuilding refurbishmentsImpedance tubesNormal incidenceSilica aerogelsSmall granulesThermal conducitivityTransmission lossThermal conductivityConference Object11147248010.1016/j.egypro.2017.03.2092-s2.0-85017275313N/AWOS:000400643800049N/A