Fluegas Recirculation TRIZ Cases

Return flue gas is redirected through a helical coil and cavity to recover heat, improving burner efficiency while keeping emissions low.

A cooled recirculation vortex reaches the heat exchanger to prevent hydrogen flashback while maintaining stable combustion and lower NOx.

CO2-rich recirculated gas carries oxygen into grate combustion, raising exhaust CO2 concentration while limiting thermal load and flue gas volume.

Staged fuel jets and radial impact structures boost internal flue gas recirculation to cut NOx while preserving flame stability and turndown.

Humidity and temperature sensing in the combustion air path helps gas heaters correct recirculation effects, detect leaks, and stabilize emissions.

Distributed drive nozzles and a mixing chamber recirculate only the needed exhaust gas to cut NOx while keeping hydrogen burner flames stable.

A compact burner integrates suction, fume return, and heat exchange to lower NOx and noise without major flue modifications.

Independent oxygen control in burner and after-gas port resolves the contradiction between combustion efficiency and fuel NOx emissions.

Staged fuel injection and internal flue gas recirculation lower peak flame temperatures to reduce thermal NOx emissions while maintaining stable heat flux.

Internal flue gas ports use burner suction to recirculate exhaust, eliminating external piping while reducing NOx emissions below 25 ppm.

A combustion gas bypass line with a flow control damper maintains the deduster inlet temperature above the acid dew-point to prevent sulfuric acid corrosion.

Oxygen injection eliminates nitrogen oxide formation while fume recirculation preheats the comburent to reduce pollutant emissions.

Recirculating flue gas stabilizes oxyfuel combustion at low oxygen levels, reducing nitrogen oxide emissions and operational costs.

A porous interior chamber breaks fluid mixtures into small particles to enable efficient heat transfer through conduction and convection.

A burner design with a dedicated recycle gas duct mixes fuel and recycle streams before combustion.

Induction channels draw recirculated flue gas into the combustion air stream, cooling the gas to preserve dilution benefits and reduce NOx emissions.

Admixing carbon dioxide-rich flue gas into oxidizer streams lowers flame temperature, reducing nitrogen oxide emissions without compromising burner reliability.

A premix burner system recycles flue gas via fixed orifice restrictors to control the air-fuel mixture ratio.

Cross-flow injection in a segmented chamber stabilizes hydrogen and ammonia flames while reducing thermal NOx emissions.

Segmenting the brazier enables continuous pyrolysis while pure oxygen combustion eliminates nitrogen oxide emissions from ambient air.

Recirculating flue gases into combustion air lowers oxygen concentration to suppress NOx formation in sealed forced-draught boilers.

An axially displaceable burner nozzle adjusts the oxidant flow cross-section, maintaining stable flame geometry across wide oxygen concentration ranges.

Segmented burner cone creates an air basket via tangential inlets to stabilize combustion, resolving reliability versus manufacturing complexity.

A burner design recirculates flue gases to stage combustion and reduce nitrogen oxide emissions.

Segmenting the brazier from the combustion chamber controls oxygen levels to minimize nitrogen oxide emissions during pyrolysis.

Parallel venturi-type mixing conduits distribute recirculated combustion products across the flame zone to reduce peak temperatures and lower NOx emissions.

Coaxial annular gaps and a Venturi tube recirculate flue gases to dilute combustion air, reducing NOx emissions while maintaining high heat exchange efficiency.

A tubular burner mixes exhaust gases with combustion air to preheat the mixture.

A high velocity jet stream entrains heated effluent gases to form a pressurized mixed stream for recirculation into a combustion zone.