Introduction

On July 4th, China’s first independently developed 15-megawatt heavy-duty gas turbine was officially rolled off the production line at Dongfang Electric Corporation Dongfang Turbine Co., Ltd. (hereinafter referred to as "Dongfang Turbine").

The G15 gas turbine, image courtesy of Jintai Information

This heavy-duty gas turbine, the G15 model, is the second product in Dongfang Turbine’s series of independently developed gas turbines. It has a power output of 16.5 megawatts, a thermal efficiency of 35%, and a turbine inlet temperature of 1450 K. Compared to similar power coal-fired power plants, it can reduce carbon emissions by over 150,000 tons per year. In combined cycle mode, it can generate over 22,000 kilowatt-hours of electricity per hour, sufficient to meet the daily electricity needs of 2,500 households.

The G15 rotor being assembled. Image courtesy of Jintai Information

Compared to the previous G50, the G15 gas turbine is approximately 0.6 times smaller in scale, with a more integrated overall structure, making its manufacturing more challenging. To address this, Dongfang Turbine employed directional solidification technology for the high-temperature turbine blades, significantly improving their high-temperature mechanical properties and ensuring the blades' safety and reliability during operation. For high-temperature coatings, supersonic flame spraying was used to create a uniformly dense protective layer. Additionally, 3D printing technology was applied to complex and narrow-gap components such as the burner tail cone, addressing issues related to deformation and machining difficulties.

The successful roll-out of the G15 heavy-duty gas turbine signifies another milestone achievement for China in the high-end equipment manufacturing field. It not only reflects Dongfang Turbine’s deep expertise in the independent development of gas turbines but also highlights significant progress in China’s application of new materials and technologies. It also showcases the growing strength of China’s domestic manufacturing capabilities in the high-end equipment sector.

Windtuner Smart Pressure Scanner Valve

In the research and optimization phase of gas turbines, flow field measurement and control technology is crucial for enhancing turbine performance, ensuring design accuracy, and achieving operational efficiency. Dalian Windtuner Technology Co., Ltd., as a provider of comprehensive flow measurement and control solutions, offers indispensable support for gas turbine development with its advanced technology and extensive industry experience.

Windtuner Technology’s flow measurement and control equipment, such as intelligent pressure scanning valves and various aerodynamic probes, can accurately capture the complex fluid dynamics inside the combustion chamber, compressor, and turbine. Additionally, these devices maintain stable and reliable data collection under extreme conditions, providing researchers with valuable primary data.

Windtuner aerodynamic probes

Windtuner Technology offers one-stop flow measurement and control services, providing everything from precision hardware equipment to intelligent software systems. This support helps accelerate product iteration in gas turbine development, shorten research and development cycles, and ultimately achieve more efficient and environmentally friendly gas turbine products.

In the future, Windtuner Technology will continue to deepen its research and development efforts, expand technological boundaries, and focus on transforming cutting-edge technologies into practical products. The company aims to work collaboratively with industry peers to write a new chapter in the development of China’s high-tech industry.