Learn how to easily tackle industrial noise reduction projects using SOUNDPLAN!

Teach you how to easily handle industrial noise reduction projects using SOUNDPLAN!

 

When using SOUNDPLAN to design industrial noise reduction projects, the correct process must be followed:

Noise assessment → Modeling analysis → Scheme optimization → Result verification

The following are the detailed steps:

1. Demand analysis & data collection

Goal: Clarify the noise reduction requirements of the project and comprehensively collect relevant data.

Steps:

✅Identify noise sources: Determine the main noise sources inside and outside the factory, such as mechanical equipment, fans, compressors, conveyor systems, etc.

✅On-site noise measurement: Use a sound level meter or noise monitoring system to record noise data (decibels dB(A), spectral characteristics).

✅Determine noise reduction targets: Set noise reduction indicators based on the "Environmental Noise Emission Standards for Industrial Enterprises at Factory Boundaries" (GB 12348-2008) or project requirements.

✅Collect environmental information: Including factory structure, terrain, surrounding buildings, weather factors, etc.

 

📌Example:

- Factory equipment noise: Found that the noise from the factory fan reached 90 dB(A), exceeding the specified value (65 dB(A)).

- Factory boundary noise monitoring: Measured noise at night was 70 dB(A), exceeding the GB 12348-2008 standard requirement (≤55 dB(A)).

 

2. Establish SOUNDPLAN 3D noise model

Goal: Use SOUNDPLAN for three-dimensional acoustic modeling to simulate noise propagation.

Steps:

✅Import data: Input factory geographic information, equipment coordinates, terrain data (GIS), building layout (CAD).

✅Define noise sources: Set sound power levels (Lw) and spectral characteristics for each piece of equipment (such as machine tools, blowers, boilers).

✅Simulate noise propagation: Choose an appropriate calculation model, such as ISO 9613-2 (suitable for industrial noise).

✅Calculate noise distribution: Generate noise contour maps and 3D noise maps to visually display the noise impact on the factory area and surroundings.

 

📌Example:

- Calculations show that the fan produces 90 dB(A) noise, which propagates to the factory boundary and drops to 72 dB(A), exceeding the limit.

- SOUNDPLAN noise contour maps show that certain areas are severely affected by noise and require focused treatment.

3. Design noise reduction plan & scheme optimization

Goal: Simulate different noise reduction plans and select the optimal one.

Noise reduction strategies (combined with SOUNDPLAN calculation optimization):

✅Source noise reduction from equipment

- Optimize equipment layout: Rearrange high-noise equipment away from work areas or sensitive points.

- Replace with low-noise equipment: For example, replace ordinary fans with variable frequency fans to reduce noise.

 

✅Control of propagation paths

- Install soundproof covers: Add soundproof covers to high-noise equipment such as fans, pump stations, and generators.

- Optimize sound-absorbing materials: Install sound-absorbing materials (such as sound-absorbing cotton, perforated aluminum panels) on the internal walls and ceilings of the factory.

- Noise barriers: Simulate the noise reduction effects of sound barriers (concrete/metal) at different heights and positions.

 

✅Factory boundary noise reduction measures

- Green noise reduction: Calculate the impact of trees and hedges on noise propagation.

- Optimize factory structure: Increase sealing to reduce noise leakage.

 

📌Example:

- SOUNDPLAN calculations indicate that a 2.5m high sound barrier can reduce factory boundary noise by 8 dB(A), meeting the standard.

- Replacing with low-noise fan solutions is more economical than adding soundproof covers and provides better noise reduction effects.

4. Scheme verification & effect evaluation

Goal: Verify noise reduction effects through SOUNDPLAN to ensure the plan meets standards.

Steps:

✅Scheme simulation: Input optimized equipment parameters and sound barrier characteristics, and recalculate noise propagation.

✅Result analysis:

- Compare noise contour maps before and after noise reduction to verify the extent of noise reduction.

- Ensure factory boundary noise meets GB 12348-2008 standard requirements.

✅Adjustment and optimization: If standards are not met, further adjust the plan (such as increasing barrier height, replacing with better equipment).

 

📌Example:

- After implementing the noise reduction plan, factory boundary noise decreased from 70 dB(A) to 55 dB(A), meeting the standard.

- The error between SOUNDPLAN simulation and on-site measurement is < 2 dB(A), making the plan feasible.

5. Generate report & deliver plan

Goal: Output a noise reduction design report for client or environmental protection department approval.

Report content:

✅Noise source analysis & current situation assessment (monitoring data, contour maps)

✅Noise reduction plan design (comparison of noise reduction measures, optimization calculation results)

✅Economic analysis (cost comparison of equipment replacement vs barrier solutions)

✅Final conclusion (whether standards are met & construction suggestions)

 

📌Example:

- SOUNDPLAN generates a complete noise control plan, including 3D models, noise distribution maps, and data analysis tables.

- The plan is submitted to the Environmental Protection Bureau for environmental impact assessment approval.

🎯Summary: The SOUNDPLAN method for industrial noise reduction project design.

Serial Number	Steps	Key Tasks	SOUNDPLANFunction
1	Data Collection	Measure noise and collect environmental data.	Input GIS/CAD data and establish acoustic models.
2	3D Modeling	Define noise sources and simulate propagation.	Generate noise maps and predict noise impact.
3	Plan Optimization	Design sound barriers and noise reduction for equipment.	Calculate the effects of different noise reduction plans.
4	Result Verification	Evaluate noise reduction effects and adjust plans.	Generate comparative data before and after noise reduction.
5	Report Generation	Output environmental impact assessment & construction plan.	Generate reports that meet standards.

 

💡Why choose SOUNDPLAN?

✅High precision calculation: Adopts international standards (ISO 9613-2).

✅Visual analysis: Intuitive display of noise distribution & noise reduction effects.

✅Multi-scheme comparison: Provides the optimal noise reduction plan to reduce costs.

✅Widely applicable in the industry: Complies with Chinese noise standards (GB 12348-2008), suitable for environmental protection approval.

 

If it is a specific industry (such as steel mills, automobile manufacturing, wind farms), SOUNDPLAN noise reduction design plans can be further customized. For details, please consult the Vibration and Noise Department of Beijing Qiaozhe Technology.