Exhaust Gas Heat Exchangers For Steam Generators And Waste Heat Boilers
An Exhaust Gas Heat Exchanger is a high-temperature heat recovery device installed in the exhaust line of:
- Gas engines & diesel gensets
- Gas turbines
- Biomass and waste-to-energy plants
- Refinery heaters & chemical reactors
- Industrial furnaces, kilns, and incinerators
The exchanger transfers heat from the exhaust stream into feedwater or process fluid, producing:
- Saturated steam
- Superheated steam
- Hot water for heating networks
- Thermal oil for process heating
This recovered heat is then delivered to a steam generator or waste heat boiler, where steam is produced without additional fuel combustion.
How Exhaust Gas Heat Exchangers Work
Hot exhaust gas enters the heat exchanger.
Heat transfers through finned tubes or bare tubes.
Feedwater or boiler water is heated or vaporized.
Generated steam flows into the plant's steam distribution system.
Cooled exhaust gas is released at a significantly lower temperature.
A well-designed EGHE can recover 30–80% of the available waste heat, depending on exhaust conditions.
Custom-Built EGHE Solutions
We supply engineered-to-order exhaust gas heat exchangers:
Replacement tube bundles
HRSG and WHB economizers
Vertical/horizontal finned tube modules
High-temperature stainless and alloy designs
Compact solutions for gensets and containerized systems
Engineering support includes thermal design, mechanical design, CFD analysis, and full ASME/PED certification.
Conclusion
Exhaust Gas Heat Exchangers for Steam Generators and Waste Heat Boilers are essential technologies for industries seeking energy efficiency, cost reduction, and environmental compliance. By recovering waste heat from exhaust systems, these exchangers enable reliable and efficient steam production-without additional fuel consumption.
