Comparison of noise calculation models

摘要

Three models (IL-HR-13-01, ISO 9613, VDI 2720) for calculating industrial noise have been compared on the ground and barrier attenuation and the long term meteorological correction. Although they are based on the same principals the outcome varies with 6 dB in the discussed cases. The main difference is the neglect of the ground attenuation in ISO and VDI in case of a screen between source and receiver. Furthermore the long term meteorological effects may result in a 3dB difference.