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SoundPLAN Alarm System Design

SoundPLAN Project overview - Siren / Alarm System Design Critical is the review of the propagation standard and how conservative the model should be. Environmental noise modeling is not equal to Siren / Alarm System Design Modeling. The objectives are at opposite ends of noise modeling. Environmental noise model we try to over-predict rather than under-predict the noise impact. For siren / alarm system design we want to under-predicted rather than over-predict the sound levels. Worst case for the Environmental Noise model are inversion with slight downwind conditions. Worst case for siren / alarm projects are lapse with slight upwind conditions. For more information: www.soundplan.de / www.navcon.com 0:00 Introduction 0:20 Challenges Alarm Design – methodology difference between noise control and alarm system design. Difference between weather conducive to sound propagation (inversion condition) vs weather that is not conducive to sound propagation (lapse condition). 2:25 Natural Gas Production and Tank farm Area – Geo-Database – Geometry, 3:30 3D View 5:00 Siren Input, sound power, frequency, directivity, orientation, group definition 7:10 Run Kernel – Calculation Models, DGM, Calibration, Calculations, A-, C-weighting, Different standards (Nord2000, Concawe), Group Results 10:30 Graphics Output, Contour Maps, Map Object Types 13:20 3D View with contour map and cross section map