Flue Gas Coolers To Recover Waste Heat From Flue Gases

Flue gas coolers are components used in industrial settings, particularly in power plants and other facilities with combustion processes, to recover waste heat from flue gases.

Flue gas coolers are designed to lower the temperature of flue gases for specific applications and environmental considerations.

Flue Gas Coolers:

Function:

Flue gas coolers, as the name suggests, are designed to cool the flue gases generated by combustion processes.

Location:

Positioned downstream of the economizer or at various points in the flue gas duct.

Heat Recovery:

While economizers primarily recover heat for feedwater preheating, flue gas coolers aim to cool the flue gases to a specific temperature range.

Applications:

Commonly used in applications where the temperature of the flue gases needs to be lowered for specific process requirements or environmental compliance.

Condensation Prevention:

Flue gas coolers help prevent the condensation of harmful acids, such as sulfuric acid, by lowering the temperature of the flue gases.

Materials:

Due to the potential for acidic condensate, flue gas coolers are often constructed using corrosion-resistant materials.

Emission Control:

In addition to cooling the flue gases, flue gas coolers can be integrated with additional emission control technologies to meet environmental regulations.