In combined cycle and cogeneration plants, the efficiency of heat recovery from gas turbine exhaust directly impacts overall profitability. Supplementary firing in the Heat Recovery Steam Generator (HRSG) is a proven way to increase steam production, but the exhaust gas often contains reduced oxygen levels that make conventional combustion difficult. The Fludfire series burners are purpose‑built to solve this problem, delivering stable, clean combustion in environments with oxygen content as low as 9%—without requiring additional combustion air.
Fludfire burners are engineered specifically for low‑oxygen, high‑temperature exhaust from gas turbines. Instead of relying on external combustion air fans, they utilise the residual oxygen present in the turbine exhaust, simplifying ductwork and reducing auxiliary power consumption. This unique capability allows reliable operation even when oxygen levels drop to 9%, a threshold where most conventional burners would struggle or require costly air enrichment.
（HRSG Burner）
Each Fludfire module delivers 900 kW of firing power, and the modular design means you can scale the system to match your exact heat input requirements. The burners mount directly on the tube wall of the HRSG duct, minimising footprint and keeping installation costs low. Because no separate combustion air fan is needed, capital expenditure is reduced and maintenance is simplified—a straightforward solution for both new builds and retrofit projects.
Gas turbine load changes can cause significant swings in back pressure within the exhaust duct. Fludfire burners are designed to handle wide back pressure variations without compromising flame stability or ignition reliability. This robust performance ensures uninterrupted operation whether the plant is running at base load or following load changes, giving operators confidence in all operating scenarios.
（HRSG Burner Manufacturer）
By integrating Fludfire supplementary firing, plant operators can substantially increase steam generation—whether for additional power production or industrial process use. The increased heat recovery boosts overall thermal efficiency and can improve plant profitability. Advanced combustion design also helps keep emissions low, while the rugged construction ensures long service life with minimal maintenance demands.
The Fludfire series is a proven choice for HRSG applications where low oxygen and high reliability are non‑negotiable. To discuss how these burners can enhance your plant’s performance, contact our engineering team or request detailed technical literature.
