A leading global heavy-duty gas turbine manufacturer required a customized acoustic enclosure solution for its 385MW M701F4 F-class gas turbine project in Saudi Arabia.
The M701F4 series is widely used in large-scale combined-cycle power plants across the Middle East. Due to the extreme desert climate, the acoustic enclosure system needed to meet strict requirements in terms of noise reduction, structural strength, high-temperature resistance, dust protection, corrosion resistance, and long-term outdoor operation reliability.
This project represents CLET’s successful delivery of a direct overseas supply project for a world-class gas turbine manufacturer, demonstrating its engineering and manufacturing capabilities for high-end gas turbine acoustic solutions.
Project Location:
Saudi Arabia
Supporting Equipment:
385MW M701F4 Heavy-Duty Gas Turbine
Solution Provided:
Customized Turning Gear Acoustic Enclosure
Service Mode:
Integrated Design & Manufacturing Solution
Supply Scope:
Gas turbine turning gear acoustic enclosure, including structural frame, acoustic insulation system, access doors, and customized supporting components.
Extreme Desert Operating Conditions
Saudi Arabia features high temperatures, intense sunlight, heavy dust, and significant temperature variations between day and night. The acoustic enclosure required excellent resistance against heat, sand, dust, UV exposure, and long-term outdoor corrosion.
High Noise Reduction Requirements
The turning gear generates significant operational noise. The enclosure needed to achieve high-performance sound insulation while maintaining sufficient internal space for equipment inspection, maintenance, and heat dissipation.
Strict OEM Quality Standards
The project required compliance with strict OEM requirements covering engineering drawings, structural calculations, welding quality, dimensional accuracy, sealing performance, and final inspection procedures.
Overseas Installation Requirements
Considering limited local fabrication capabilities, the enclosure needed to be fully prefabricated, inspected, and modularized before shipment to minimize onsite modification and installation work.
1. Customized Acoustic Enclosure Design & Manufacturing
CLET independently completed the 3D design, acoustic simulation, structural analysis, and manufacturing process development for the turning gear enclosure.
The customized solution includes:
The enclosure dimensions and installation interfaces were precisely matched with the M701F4 gas turbine system.
2. Desert Climate Adaptation Design
Based on the Saudi Arabian desert environment, CLET optimized the enclosure structure and surface treatment:
The customized design ensures stable operation under extreme heat and dusty outdoor conditions.
3. Strict Manufacturing Quality Control
CLET implemented a comprehensive quality management process throughout production:
Complete engineering documents, manufacturing records, and inspection reports were provided to ensure compliance with international project standards.
4. Factory Pre-Assembly & Modular Export Delivery
To reduce onsite installation complexity, the acoustic enclosure was fully assembled and inspected at CLET’s factory before shipment.
The enclosure was modularly divided according to transportation requirements, with:
After arriving at the Saudi project site, the enclosure could be quickly assembled with minimal onsite adjustment.
Successful Delivery for International Gas Turbine Project
The project was successfully completed and delivered, demonstrating CLET’s capability in supplying customized acoustic solutions for large-scale gas turbine applications.
Reliable Performance in Desert Conditions
The enclosure achieved required performance in noise reduction, dust protection, corrosion resistance, and outdoor durability, ensuring reliable operation in Saudi Arabia’s harsh climate.
Reduced Overseas Installation Costs
Factory prefabrication and modular delivery significantly reduced onsite welding, modification, and installation requirements, helping optimize project schedules and costs.
Strengthened Global Gas Turbine Supply Capability
Through this project, CLET further enhanced its experience in M701F4 gas turbine acoustic enclosure solutions and established the capability to support similar power generation projects worldwide.
Showcasing our engineering expertise and successful project experience across aerospace, energy, and industrial sectors.
