Combustion Technology Portfolio

Flue Gas Recirculation

The use of a varied percentage of the flue gases to reduce the burner flame temperature, injecting them into the secondary air, is a “dilution” technology whose scope is to obtain a “softer” and “colder” flame by decreasing the excess air.
By reducing the concentration of oxygen, the flame temperature is reduced and so is the formation of NOx originating from heat.
Another effect of flue gas recirculation is to minimize the CO levels becouse of its re-introduction into the combustion cycle.
Naturally, precautions have to be taken to ensure flame stability as well as for the presence of particles inside the burner that need to be filtered

The technique is typically used in U-shaped radiant tubes, as  in the figure, which shows the  ESA patent for the configuration with :
Radiant Tube burner, SIC PLUG IN recuperator,  FGR recirculation valve and valve for eliminating CO at minimum.

News & Events

ESA EXHIBITS IN ECOMONDO EXHIBITION

ESA EXHIBITS IN ECOMONDO EXHIBITIONNell'ottica di una sempre più convinta adesione al Green New Deal , ESA partecipa alla maggiore fiera "green" di settore assieme al Gruppo [more]

MARC BOFFÉ JOINS ESA GROUP

MARC BOFFÉ JOINS ESA GROUPORGANIZATIONAL ANNOUNCEMENT In a project of strengthening ESA presence in Northern European markets in view of upcoming “Green New Deal” Mr. Marc Boffé is joining [more]

ESA & OLSTRAD FOR AMERICAN MARKET

ESA & OLSTRAD FOR AMERICAN MARKETDEALERSHIP ANNOUNCEMENT FOR AMERICAN MARKET ESA is pleased to announce the appointment of Olsträd Engineering Corporation as the exclusive dealer for the USA, and as [more]

ADIPEC 2019: thanks for visiting us!

ADIPEC 2019: thanks for visiting us!Dear Sirs, We thank you for your visit in our stand in ADIPEC 2019 In case you require further information kindly contact our general mail [more]