Mitsubishi Heavy Industries (MHI) is one of the world’s leading manufacturers of heavy-duty F-class gas turbines. The M701F4 385MW gas turbine is widely used in large-scale combined cycle power plants worldwide and requires strict standards for equipment design, manufacturing accuracy, corrosion protection, and long-term operational reliability.
The end user, Hongkong Electric Company, operates one of Hong Kong’s major power generation facilities. Located in a coastal environment, the power plant has extremely strict requirements for equipment corrosion resistance, noise control, environmental protection, and long-term stability.
As a direct supplier for MHI, CLET provided a complete air intake system solution integrating engineering design, manufacturing, and prefabricated delivery for the LAMMA13 project, supporting reliable operation of the M701F4 gas turbine in a high-humidity coastal environment.
Project Location:
Hong Kong, China (LAMMA13 Power Station)
End User:
Hongkong Electric Company
Supporting Equipment Model:
385MW MHI M701F4 Heavy-Duty Gas Turbine
Supply Scope:
Complete gas turbine air intake system, including:
Project Type:
Integrated design and manufacturing delivery
Delivery Schedule:
Full equipment delivery planned in 2026
1. Coastal Environment Requires Advanced Corrosion Protection
The LAMMA13 power station is located in a coastal area with high humidity, salt spray, heavy rainfall, and frequent typhoon conditions.
The air intake system is installed outdoors and exposed to marine environments for long periods. Therefore, the equipment requires:
Conventional inland power plant equipment could not meet the demanding coastal operating conditions.
2. Complex Air Intake System Integration
The M701F4 gas turbine air intake system consists of multiple interconnected components, including:
Due to the large equipment size and complex interfaces, separate suppliers could easily cause dimensional mismatches, installation difficulties, and additional site modification work.
3. Strict MHI Manufacturing and Quality Requirements
MHI applies strict supplier evaluation standards covering:
All technical documentation and manufacturing processes needed to meet MHI’s quality management requirements.
4. Limited Construction Space in Hong Kong
Due to limited installation space and high local labor costs, the customer required maximum factory prefabrication.
The equipment needed to be:
This significantly reduced high-altitude welding, adjustment, and on-site fabrication work.
1. Integrated Air Intake System Design and Manufacturing
CLET completed the complete engineering design, structural optimization, and manufacturing of the M701F4 air intake system.
The delivered system included:
Air Intake Filter House
Acoustic Transition Duct System
Structural Support System
All components were developed with unified design references to ensure accurate connection with the M701F4 gas turbine system.
2. Marine-Grade Corrosion Protection for Coastal Operation
Based on Hong Kong’s coastal environment, CLET optimized the manufacturing process with advanced corrosion protection solutions:
The system was designed to withstand long-term exposure to humid, salty, and windy coastal conditions.
3. Manufacturing Process Compliant with MHI Quality Standards
CLET followed MHI’s technical requirements throughout the production process:
Complete engineering documents, manufacturing records, and inspection reports were prepared to support MHI project approval.
4. Factory Prefabrication and Modular Delivery
To meet Hong Kong’s restricted construction environment, the complete air intake system was prefabricated in CLET’s factory.
Before shipment:
After delivery to the LAMMA13 site, only modular assembly and final connections were required, significantly reducing installation time and on-site labor requirements.
Reliable Performance in Coastal Power Plant Environment
The complete air intake system achieved required performance in:
The equipment is designed to support long-term reliable operation of the M701F4 gas turbine under Hong Kong’s coastal conditions.
Successful Delivery for MHI Large Gas Turbine Project
Through this project, CLET further strengthened its cooperation capability with MHI and demonstrated the ability to provide complete air intake system solutions for large F-class gas turbine applications.
Reduced Installation Complexity and Project Cost
The integrated design and factory prefabrication approach minimized:
Providing a more efficient solution for large-scale overseas power projects.
Expanded Experience in Coastal Gas Turbine Applications
This project enhanced CLET’s expertise in designing and manufacturing coastal air intake systems for large gas turbines, providing a proven solution for future marine, urban, and environmentally sensitive power generation projects worldwide.
Showcasing our engineering expertise and successful project experience across aerospace, energy, and industrial sectors.
