The ASHRAE–CST Bhutan Student Branch successfully organized an Industry Insights Session titled “The Sound of Silence in Ventilated Systems: Biomimetic Acoustic Solutions” on 19 March 2026, bringing together students, faculty members, and international experts to explore emerging developments in ventilation acoustics and sustainable building systems engineering.
The session was delivered by Prof. Madya Dr. David N.V. from the Universiti Teknologi MARA (UiTM), Malaysia, a distinguished academic with extensive experience in applied mechanics, materials engineering, and engineering education.
The lecture addressed a critical challenge in modern HVAC and building services engineering: achieving effective noise control in ventilated systems without compromising airflow performance. Drawing inspiration from biomimetic design principles, the session demonstrated how nature-inspired honeycomb acoustic structures can simultaneously support ventilation and enhance low-frequency sound insulation, an area where conventional acoustic panels often face limitations.
Prof. David presented experimental insights into the development of resonating cavity-based acoustic panels integrated within ventilated structures. These advanced solutions offer promising applications in:
- HVAC duct systems
- machinery enclosures
- indoor environmental noise control
- sustainable and energy-efficient building environments
Such approaches contribute significantly to improving indoor environmental quality (IEQ) and occupant comfort in modern infrastructure systems.
The session further highlighted the broader role of biomimicry in engineering innovation, demonstrating how interdisciplinary research can address long-standing trade-offs between airflow efficiency and acoustic attenuation in ventilation networks and built environments.
The event also featured valuable reflections from Prof. Masengo Ilunga of the University of South Africa and Prof. Rejeesh C.R. of Federal Institute of Science and Technology, who shared perspectives on emerging research directions in acoustic materials and sustainable mechanical systems design.
Dean Prof. Abhishek Agarwal also appreciated the technical depth of the session and shared insights from his own research work on honeycomb structural systems and advanced engineering applications, further enriching the academic discussion.
The interaction provided students and faculty with valuable exposure to current research developments in:
- ventilation acoustics
- biomimetic engineering materials
- sustainable HVAC technologies
- noise mitigation in built environments
The session reinforced the importance of integrating nature-inspired engineering concepts with practical design challenges in next-generation building systems.
The ASHRAE–CST Bhutan Student Branch continues to promote technical engagement through expert lectures and industry-oriented learning platforms that support the academic and professional development of engineering students in the areas of mechanical engineering, building science, and sustainable infrastructure technologies.
