HVAC Noise Control is an essential area of engineering focused on identifying, analysing, and reducing unwanted sound generated by heating, ventilation, and air conditioning systems. In modern buildings, controlling mechanical noise is critical for maintaining comfort, meeting acoustic standards, and improving the overall quality of indoor and outdoor environments. This course provides a practical and structured understanding of noise control principles used in HVAC system design, installation, and performance evaluation.

The course begins by introducing the major sources of noise within HVAC systems, including fans, pumps, chillers, cooling towers, generators, and air conditioning units. You will learn how different components contribute to airborne and structure-borne sound, helping you better understand where noise problems commonly originate.

A major focus of this course is understanding how HVAC noise is measured and evaluated. You will explore important acoustic concepts such as sound pressure levels, A-weighted decibel scales, noise rating curves, and noise criterion standards. These principles help engineers assess system performance and determine acceptable noise levels in different environments.

You will also develop practical knowledge of noise attenuation methods used to control sound in HVAC systems. Key solutions such as silencers, lined ductwork, plenum chambers, and optimized airflow design are explained in detail. The course also covers regenerated noise, airflow velocity limits, and best practices in fan and ductwork design to improve acoustic performance.

Advanced sections explore noise transmission to outdoor environments, indoor occupied spaces, and piped services. You will also examine mechanical equipment room design, construction considerations, and system commissioning strategies for effective long-term noise control. Real-world examples and calculation methods are included to help reinforce practical understanding.

By completing this course, learners will gain valuable engineering knowledge for designing quieter, more efficient HVAC systems in residential, commercial, and industrial projects.