HVAC System Acoustics and Noise Control Fundamentals

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Chris Field

2:16:37

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1. Introduction Noise in HVAC Systems

1. Types of Systems, Components and Sound Transmission Paths in HVAC Systems.mp4

03:29

2. Approach to Assessing Noise in HVAC Systems.mp4

01:22

3. Assignment Questions.html

2. HVAC Noise Sources

1. HVAC Noise Sources.mp4

00:36

2. Fan Noise.mp4

04:09

3. Packaged Airconditioning Units (PACs).mp4

02:50

4. Fan Coil Units (FCUs).mp4

01:10

5. Standby Generators.mp4

01:20

6. Chillers and Cooling Towers.mp4

01:27

7. Pumps and Boilers.mp4

01:23

8. Assignment Questions.html

3. HVAC Manufacturers Noise Data

1. Manufacturers Noise Data - Parameters.mp4

01:56

2. Describing Sound Sources.mp4

04:06

3. Manufacturers Noise Data Examples.mp4

02:27

4. Assignment Questions.html

4. Measuring HVAC System Noise

1. Measuring HVAC System Noise Levels.mp4

00:37

2. A-weighted Sound Pressure Level.mp4

06:11

3. NR and NC Curves.mp4

07:54

4. Assignment Questions.html

5. HVAC Noise Attenuating Elements

1. HVAC Noise Attenuating Elements.mp4

00:39

2. Attenuators (Silencers).mp4

08:36

3. Acoustically Lined Ductwork.mp4

08:10

4.1 Plenum_attenuation.xlsx

4. Plenum Chambers.mp4

01:19

5. End Reflection.mp4

02:26

6. Assignment Questions.html

6. HVAC Branching Elements

1. Branching Elements.mp4

02:48

2. Assignment Questions.html

7. HVAC Noise Regeneration

1. Causes and Mechanisms of Regenerated Noise.mp4

02:11

2. Regenerated Noise from Attenuators.mp4

01:16

3. Regenerated Noise from Ductwork.mp4

02:09

4. Other System Elements.mp4

01:35

5. Maximum Allowable Air Flow Velocities.mp4

01:05

6. Fan and Ductwork Design - Best Practice Guidelines.mp4

03:16

7. Assignment Questions.html

8. HVAC Noise to Outdoors or within Rooms

1. Parameters that Affect Noise to Outdoors or Within Rooms.mp4

02:25

2. 5 Factors Affecting HVAC Noise to Outdoors and Calculation Methodology.mp4

09:16

3.1 Cooling Tower Outdoor Sound Calc.xlsx

3. Calculation Example - Sound Level to the Atmosphere.mp4

03:42

4. Calculations of HVAC Noise Within Rooms.mp4

02:24

5.1 HomeOfficeCalculation.xlsx

5. Example Calculation of HVAC Noise Within Rooms.mp4

03:40

6. Assignment Questions.html

9. Noise in Piped Services

1. Sources of Noise in Piped Services.mp4

00:33

2. Noise from Pumps.mp4

01:01

3. Turbulence and Thermal Effects.mp4

01:34

4. Assignment Questions.html

10. Mechanical Equipment Room Design

1. Airborne and Structureborne Sound.mp4

05:40

2. Equipment Room Location.mp4

00:57

3. Wall Constructions.mp4

03:07

4. Floor Constructions.mp4

01:12

5. Roof Constructions.mp4

02:23

6. Door Constructions.mp4

02:27

7. Assignment Questions.html

11. HVAC System Noise Calculations

1. Review of the Approach to Calculations.mp4

00:42

2.1 FCU calc example.xlsx

2. Case Study and Calculation Example.mp4

09:58

3.1 HVAC Exercise Calculation Answers.xlsx

3.2 HVAC Exercise Template for Calculation.xlsx

3.3 HVAC Exercise.pdf

3. Calculation Exercise Download Mechanical Services System Calculation.html

4. Assignment Questions.html

12. HVAC Noise Tips for Construction and Commissioning Stage

1. On Site Installation Guidance.mp4

03:10

2.1 Listen for Noise Issues Guide.pdf

2.2 Octave Band Survey Sheet.xls

2.3 Survey Sheet.xls

2. System Commissioning and Acoustic Testing.mp4

05:59

3. Assignment Questions.html

Description

Essential knowledge for acoustic design and on-site noise related installation aspects of HVAC systems in buildings

What You'll Learn?

To gain an understanding of the fundamental noise control design aspects related to HVAC systems.
Entry level noise control knowledge for mechanical engineering students related to HVAC systems.
University level HVAC noise control theory and practice for use on engineering and construction projects.
Project case studies where noise control design theory can be applied.

Who is this for?

Advanced high school and university students

Mature age students doing self-serve learning on acoustics and noise control

Engineering and HVAC professionals wanting to understand noise control design considerations for HVAC systems in buildings.

Construction industry HVAC contractors

University graduates to qualify for graduate acoustic consultant job positions

What You Need to Know?

High school mathematics.

Basic understanding of the functioning elements of an HVAC system.

More details

Description
This course is a follow-up to my previous course entitled Building Acoustics and Noise Control.
It is assumed that students have an understanding of the mechanical design and operation of HVAC systems in buildings. This course focuses on acoustic design considerations for HVAC systems in buildings.Â
The separate elements in HVACÂ systems are reviewed with respect to acoustic importance in terms of causing noise issues or providing acoustic benefit by attenuation of system noise.Â The approach and methodology is presented for undertaking acoustic calculations for HVAC systems with associated recommendations and strategies for noise control. Recommendations and example constructions are provided for typical mechanical equipment rooms. Guidance guidance is provided for on-site installation of HVAC systems to avoid noise issues, and tips for acoustic testing during commissioning stage.
The course is aimed at :
Â Â 1. Advanced high school and university students.
Â Â 2. Mature age students doing self-serve learning on acoustics and noise control.
Â Â 3. University course coordinators needing specialist content on acoustics and noise control for HVAC systems.
Â Â 4. University graduates to qualify for graduate acoustic consultant job positions.
Â Â 5. Engineering and HVAC professionals wanting an understanding of noise control design considerations for buildings.
Â Â 6. Construction industry HVAC contractors.

Broad topics covered include:
Â Â 1. Introduction: Noise in HVAC Systems
Â Â 2. HVAC Noise Sources
Â Â 3. HVAC Manufacturers Noise Data
Â Â 4. Measuring HVAC System Noise
Â Â 5. HVAC Noise Attenuating Elements
Â Â 6. Branching Elements
Â Â 7. HVAC Noise Regeneration
Â Â 8. HVAC Noise to Outdoors or within Rooms
Â Â 9. Noise in Piped Services
Â Â 10. Mechanical Equipment Room Design
Â Â 11. HVAC System Noise Calculations
Â Â 12. Specification and Tips for Construction Stage of HVAC systems

If you have no prior knowledge of acoustics, I recommend you also take my other course entitled Building Acoustics and Noise Control.

Who this course is for:
Advanced high school and university students
Mature age students doing self-serve learning on acoustics and noise control
Engineering and HVAC professionals wanting to understand noise control design considerations for HVAC systems in buildings.
Construction industry HVAC contractors
University graduates to qualify for graduate acoustic consultant job positions

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I have a First Class Honours degree in Mechanical Engineering and a PhD in Acoustics from the University of Sydney in Australia. Over the last 25 years I have been involved in lecturing and tutoring of both undergraduate and postgraduate students, published various conference papers and peer reviewed journal papers, and also worked as an acoustic consultant in the engineering and construction industry in Australia, US and UK. I’ve worked on some of the most prestigious building designs around the world including the Bill and Melinda Gates Foundation Building in Seattle, the Beijing Watercube Olympic Swimming Centre and several theatres in Australia.I am also an acoustic product designer. The technology I have developed has been granted international patents and has been subsequently licensed for commercialisation.

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