Unveiling the Core Equipment of Energy—Steam Turbine: A Power Revolution Since 1884, Sustaining a Century of Glory

Before 1884, the steam engine, as the core power source of the First Industrial Revolution, drove transformative changes in human production methods. However, it suffered from inherent limitations—bulky size, slow speed, and low efficiency—akin to a cumbersome "old ox," unable to meet the demands of industrial production for efficient power. The first practical steam turbine, developed by Charles Parsons, fundamentally altered this situation. It innovatively converted the linear motion of steam into the rotational motion of a rotor, significantly reducing the equipment’s size while increasing its speed to thousands of revolutions per minute. This made power output more efficient and stable, laying the foundation for the development of subsequent power equipment.

This epoch-making steam turbine succeeded in surpassing traditional steam engines primarily due to breakthroughs in two key designs. The first was the multi-stage expansion design. Unlike traditional steam engines, which released steam energy in a single stage, the steam turbine utilized a series of blades to allow steam to expand and release energy incrementally, maximizing the extraction of thermal energy from the steam. This increased power efficiency severalfold compared to traditional steam engines. The second breakthrough was its high-speed rotation capability. The high rotational speed enabled the steam turbine to directly drive generators, eliminating the need for complex gear transmission systems. This allowed power plants to break free from the constraints of bulky equipment and move toward compact and efficient designs.

In 1897, Parsons applied the steam turbine to marine propulsion, creating the ship Turbinia. This practical application fully demonstrated the advantages of steam turbines—ship speeds surged from the traditional 18 knots to 34 knots, completely revolutionizing the maritime landscape of the time and rapidly gaining recognition across various industries. Over the past century, steam turbines, with their strong adaptability and stability, have expanded from industrial applications to the energy sector, becoming a veritable "versatile powerhouse."

In the industrial sector, by the early 20th century, steam turbines had become the "power heart" of large enterprises such as steel mills and chemical plants, driving the smooth operation of various heavy machinery and supporting the scaled development of modern industry. In the power sector, they remain the dominant equipment to this day, with approximately 80% of the world’s electricity generated by steam turbine-driven units. Whether in thermal or nuclear power projects, they are indispensable. In the maritime sector, steam turbines, with their efficient and stable power output, have become the core power choice for large vessels, influencing the development of the global shipping industry.

Notably, the design principles of steam turbines have also provided critical inspiration for subsequent developments in power technology. Modern gas turbines, aircraft engines, and even rocket engines have, to varying degrees, drawn upon their core principles, making steam turbines a foundational force in power technology. After more than 140 years of iterative upgrades, steam turbines have evolved far beyond their original form, advancing toward greater efficiency, sustainability, and intelligence. Domestic steam turbines, in particular, have achieved leapfrog development, with continuous breakthroughs in core technologies, placing them among the world’s most advanced.

From its debut in 1884 to its current role as a core pillar supporting global energy and industrial development, the century-long evolution of the steam turbine epitomizes humanity’s relentless pursuit of efficient power and technological innovation. In the future, as the "dual carbon" goals advance and energy structures are optimized, steam turbines will continue to play a central role. By enhancing energy utilization efficiency and expanding application scenarios, they will carry forward their century-long legacy, providing robust support for global energy security and industrial upgrading.