China 33MW SGT-700 Gas Turbine Acoustic System Project

Project Background

A leading global energy equipment manufacturer and system integrator required a complete acoustic noise reduction solution for SGT-700 33MW heavy-duty gas turbine power generation projects.

The SGT-700 series gas turbines are widely applied in distributed power plants and combined heat and power (CHP) projects. The project required a supplier with strong capabilities in engineering design, precision manufacturing, acoustic optimization, and adaptation to different global operating environments.

CLET provided a complete integrated acoustic system solution, covering engineering design, manufacturing, prefabrication, and technical support. The delivered systems included air intake and exhaust systems, silencers, ventilation noise control systems, acoustic enclosures, and plant noise barriers.

Project Location

Zhengzhou, China
Jiangdu, China
Malaysia

Supporting Equipment Models

Gas Turbine Model:
33MW SGT-700 Heavy-Duty Gas Turbine
Project Type:
Design & Manufacturing Integrated Delivery
Delivered Products:

  • Air Intake System
  • Exhaust System
  • Intake & Exhaust Silencers
  • Gas Turbine Ventilation Noise Reduction System
  • Exhaust Transition Duct
  • Gas Turbine Acoustic Enclosure
  • Gearbox Acoustic Enclosure
  • Plant Acoustic Barriers

Project Challenges

Adaptation to Multiple Operating Environments
The projects covered different climates, including inland dusty areas, humid regions, and tropical coastal environments.
The equipment required customized solutions for:

  • Dust protection
  • Moisture resistance
  • Corrosion protection
  • Temperature adaptability
  • Long-term outdoor operation

Complex Acoustic System Integration
The SGT-700 gas turbine system involves multiple interconnected acoustic components, including air intake, exhaust, turbine enclosure, gearbox enclosure, and plant noise barriers.
Multi-supplier solutions could lead to:

  • Interface mismatch
  • Inconsistent acoustic performance
  • Complex installation coordination
  • Reduced overall noise reduction efficiency

Strict International Quality Standards
The project required all equipment to comply with strict global engineering standards, including requirements for:

  • Structural strength
  • Noise reduction performance
  • Seismic resistance
  • Corrosion protection
  • Welding quality
  • Manufacturing accuracy

Overseas Installation Requirements
Due to different construction conditions across regions, the customer required a supplier capable of providing:

  • Detailed engineering design
  • Factory prefabrication
  • Installation guidance
  • Technical support during site assembly

CLET Solution

1. Integrated Acoustic System Design & Manufacturing
CLET provided a complete one-stop acoustic solution with unified engineering design, manufacturing standards, and quality control.
The solution included:

Air Intake & Exhaust Acoustic Systems

  • Customized silencers to reduce airflow-generated noise
  • Optimized airflow performance and pressure loss control

Ventilation Noise Reduction System

  • Balanced equipment cooling requirements with noise control targets
  • Improved ventilation efficiency and acoustic performance

Gas Turbine & Gearbox Acoustic Enclosures

  • Double-layer acoustic enclosure structures
  • High-density sound absorption materials
  • Optimized maintenance access design

Plant Acoustic Barriers

  • External noise reduction solutions to control sound radiation from power facilities

All systems were designed with unified interfaces and dimensions to ensure seamless integration with SGT-700 gas turbine equipment.

2. Customized Weather Protection Solutions
Based on different project environments, CLET developed customized protection solutions:

Zhengzhou, China

  • Enhanced multi-stage dust filtration structure
  • Improved outdoor wear-resistant coating

Jiangdu, China

  • Advanced waterproof sealing design
  • Rain protection structures for ventilation systems

Malaysia Coastal Project

  • Heavy-duty anti-corrosion coating system
  • Stainless steel weather-resistant fasteners
  • Enhanced protection against high humidity and salt spray corrosion

3. Full-Process Quality Control
CLET completed comprehensive engineering verification and manufacturing control, including:

  • Structural calculations
  • Acoustic simulation analysis
  • Welding quality control
  • Sheet metal precision control
  • Surface coating inspection
  • Acoustic performance testing

All technical documents and inspection reports were reviewed according to strict project requirements, ensuring reliable quality and compliance.

4. Factory Prefabrication & Site Technical Support
Large acoustic enclosures, ducts, and silencers were prefabricated and assembled at CLET’s factory before shipment.
The modular design enabled:
Efficient transportation
Reduced site welding work
Faster installation
Lower construction complexity
CLET also provided technical support including:

  • Installation drawings
  • Interface verification
  • Assembly guidance
  • Site coordination

Conclusion

Complete One-Stop Acoustic System Delivery
CLET successfully supplied the complete acoustic system package, including air intake, exhaust, turbine enclosure, gearbox enclosure, and plant noise barriers, reducing supply chain complexity.

Stable Operation Across Multiple Regions
The systems were successfully deployed in China and Malaysia, maintaining stable performance under dusty, humid, and tropical coastal environments.

Recognition from Leading Energy Equipment Manufacturers
Through strict engineering review and quality verification, CLET demonstrated the capability to support advanced SGT-series gas turbine acoustic system projects.

Integrated Design & Manufacturing Reduced Project Costs
The combination of engineering design, factory prefabrication, and technical support reduced on-site workload, shortened installation time, and improved overall project efficiency.

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