Noise Isolation System for Indoor Industrial Ventilation
Abstract
:1. Introduction
2. Materials and Methods
2.1. Regulations in Force in Ecuador
2.2. Data Collection through Engineering Control
2.3. Hearing Shield Evaluation
2.4. Materials Analysis
2.5. Acoustic Camera Design
2.6. Acoustic Camera Operation Simulation
2.7. Manufacture of the Acoustic Camera
3. Results
3.1. Analysis of Materials and Combined Structures
3.2. Acoustic Camera Designs and Simulation
3.3. Manufacturing
4. Discussion
4.1. Selection and Combination of Materials
4.2. Acoustic Chamber Model and Simulation
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sound Level/dB (A) | Exposure Time Per Day/h |
---|---|
85 | 8 |
90 | 4 |
95 | 2 |
100 | 1 |
110 | 0.25 |
115 | 0.13 |
Material | Noise Reduction dB (A) | Weight (kg) |
---|---|---|
Steel | 17.0 | 280.44 |
Wood | 10.0 | 25.00 |
Ceramics | 20.0 | 96.00 |
Plastic | 4.0 | 10.80 |
Acoustic foam | 11.7 | 0.83 |
Steel angles | 8.0 | 1.50 |
Measures | Point 1 | Point 2 | Point 3 | Point 4 | Point 5 | Point 6 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
dB (A) | F (Hz) | dB (A) | F (Hz) | dB (A) | F (Hz) | dB (A) | F (Hz) | dB (A) | F (Hz) | D B(A) | F (Hz) | |
Initial values | 97.66 | 655 ± 5 | 103.41 | 659 ± 4 | 106.61 | 94 ± 3 | 99.81 | 93 ± 3 | 97.75 | 331 ± 9 | 94.74 | 257 ± 4 |
Values after implementation | 94.9 | 20 ± 5 | 95.9 | 57 ± 4 | 99 | 18 ± 4 | 97.5 | 20 ± 3 | 95.2 | 83 ± 6 | 93.9 | 88 ± 5 |
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Escudero-Villa, P.; Fonseca-Gonzales, P.; Núñez-Sánchez, J. Noise Isolation System for Indoor Industrial Ventilation. Sustainability 2023, 15, 9083. https://doi.org/10.3390/su15119083
Escudero-Villa P, Fonseca-Gonzales P, Núñez-Sánchez J. Noise Isolation System for Indoor Industrial Ventilation. Sustainability. 2023; 15(11):9083. https://doi.org/10.3390/su15119083
Chicago/Turabian StyleEscudero-Villa, Pedro, Patricio Fonseca-Gonzales, and Jéssica Núñez-Sánchez. 2023. "Noise Isolation System for Indoor Industrial Ventilation" Sustainability 15, no. 11: 9083. https://doi.org/10.3390/su15119083