A49 -- Noise and Vibration Control (SI)

This chapter provides basic sound and vibration principles and data needed by HVAC system designers. Many of the equations associated with sound and vibration control for HVAC may be found in Chapter 8 of the 2021 ASHRAE Handbook—Fundamentals. Additional technical discussions along with detailed HVAC component and system design examples can be found in the references. DATA RELIABILITY ACOUSTICAL DESIGN OF HVAC SYSTEMS Receiver Considerations Basic Acoustical Design Techniques Source Sound Levels Path Noise Estimation and Control Receiver Room Sound Correction Sound Control for Outdoor Equipment Fume Hood Duct Design Mechanical Equipment Room Sound Isolation HVAC Noise-Reduction Design Procedures VIBRATION ISOLATION AND CONTROL Vibration Measurement Equipment Vibration Vibration Criteria Specification of Vibration Isolators Vibration- and Noise-Sensitive Facilities Internal Versus External Isolation Isolating Vibration and Noise in Piping Systems Seismic Protection Vibration Investigations COMMISSIONING TROUBLESHOOTING Determining Problem Source Determining Problem Type