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Wednesday, July 10 • 16:50 - 17:10
ENVIRONMENTAL NOISE ANALYSIS AND CONTROL FOR LARGE DATA CENTERS

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Data Centers are located in suburban and exurban areas near residential, educational, medical or other acoustically sensitive facilities. Substantial back-up or standby power capabilities are required to prevent power interruption to critical digital (cloud) storage facilities. Engine-generator equip-ment produce excess environmental noise crossing property boundaries, which requires contain-ment and/or attenuation to conform to regulatory or "good-neighbor" noise limits for nearby proper-ties. Industrial, commercial, financial and other business sectors rely on cloud computing for pro-gram applications and data storage. Escalating demand has led to increasing data center construc-tion in many locations. Acoustical compatibility requirements in various codes, ordinances and regulations vary according to land usage, but generally restrict noise levels at property boundaries to moderate or comfortable levels. Other facility refrigeration or ventilation equipment produces continuous noise that should also be controlled. This paper presents interesting problems and condi-tions that occur in environmental noise analyses and development of noise mitigation for data center facility designs, with brief case studies to illustrate them, including typical configurations, building and power generation equipment source sound spectrum levels, tonal noise perceptibility, low fre-quency noise and vibration. Measurement data and calculated predictions contrast ambient versus disturbed conditions. Solutions to example problems e presented with plan drawing or graphic acoustical spectrum chart illustrations. Discussion will include typical conflicts, constraints, limita-tions and compromises. Concluding remarks will suggest application of appropriate and compre-hensive acoustical, noise and vibration criteria and practical approaches to noise mitigation. Keywords: Noise, Environmental, Attenuation, Mitigation, Directivity

Moderators
avatar for Naval Agarwal

Naval Agarwal

Technical Fellow, The Boeing Company

Authors

Wednesday July 10, 2019 16:50 - 17:10 EDT
Outremont 4
  T06 Industr. and occup. Noise & vib., SS03 Ns & vibr in sm med & lrg ind