Noise assessment of a self-rectifying axial-flow impulse air turbine: A multi-component experimental analysis

Key Points

• Noise levels were distinctly measured across multiple components during operation, highlighting key sources of sound.
• The maximum noise recorded reached 85 decibels, with considerable variation depending on turbine speed and flow conditions.
• Assessment involved comprehensive experimental techniques to thoroughly analyze noise emissions and their origins in the turbine design.
• Findings indicate significant implications for turbine design and efficiency, suggesting quieter operational pathways may be achieved.