Noise measurements in a bloc of flats

This study was carried out in collaboration with the district heating firm RADET SA from Bucharest, Romania, in order to support the acoustic renovation of the thermal stations, to meet the modern requirements of the indoor acoustic comfort. The measurement sequence consists in the recording of the sound pressure level in a bloc of flats: inside the thermal station placed at the underground level of the building and inside the apartments. The noise level was 70 dB inside the thermal station and over 44 dB inside the apartments. The most affected rooms are those adjacent to the thermal station and those adjacent to the indoor chimney of the thermal station. These values of the noise levels overtake the standardized recommended maximum value. Multiple solutions should be considered in order to reduce the sound transmission from the thermal station towards the apartments.