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Noise generation in pneumatic blow-off guns
American Industrial Hygiene Association Journal
|December 1, 1977
Summary
This guide presents an efficiency rating system for handheld air guns, nozzles, and ejectors, focusing on noise, force, and air pressure. It provides data to help users select the best equipment and implement noise control strategies.
Area of Science:
- Engineering
- Acoustics
- Industrial Safety
Background:
- Selection of industrial air blowing equipment often lacks standardized efficiency metrics.
- Existing selection criteria may not adequately address noise, force, and air consumption.
Purpose of the Study:
- To develop and present a comprehensive efficiency rating system for handheld air guns, nozzles, and ejectors.
- To provide a data-driven guide for selecting appropriate air blowing devices based on performance and safety parameters.
Main Methods:
- The system evaluates equipment based on noise levels, force/thrust, and air supply pressure.
- Detailed measurements of air consumption, blocked static air pressure, and noise characteristics (directivity, spectra) were conducted.
- Noise control techniques relevant to the use and installation of nozzles and ejectors were reviewed.
Main Results:
- An efficiency rating is established, correlating key performance indicators.
- Data on noise levels, force, and air consumption are presented for various devices.
- Effective noise control methods for air blowing applications are identified.
Conclusions:
- The developed rating system offers a standardized approach to selecting efficient and safe air blowing equipment.
- Implementing the recommended noise control techniques can mitigate workplace noise exposure.
- This guide aids in optimizing industrial processes involving air guns, nozzles, and ejectors.