PACKAGE NAME : COMBUSTION MODIFICATION PACKAGE FOR LOT-1 PROJECTS
---------------------------------------------------------------------------------------------------------------------------
“Salient Technical Features of the equipment/systems/services covered in the Bidding
Document No. CS-0011-103A(1)-9 are mentioned below. These Salient Technical
Features are mentioned only to facilitate the prospective bidders to prima-facie
understand the requirements under the tender and shall not in any way limit or alter the
scope of work and technical features/specification of equipment/ systems/ services
covered in the Bidding Documents. Detailed provisions in regard of scope of work and
technical features/ specification of equipment/ systems/ services, contained in the
Bidding Documents shall be final and binding.”
Salient Technical Features
Combustion modification is an in-furnace modification for reducing NOx generation
during combustion process by Air Staging in furnace. This technique produces staged
combustion by introducing a portion of the secondary air above the firing zone, which
in turn reduces the amount of available oxygen in the main combustion zone where
NOx is generated. In this arrangement there is no change in total quantity of
combustion air being introduced to the furnace remains unchanged. Only the air
distribution between zones is changing.
Concentric firing system also shall be installed which shall form the first stage of air
staging. OFA shall result in second stage of air staging.
The air admitted thru’ the furnace above the combustion zone, results in third stage
firing which completes combustion and reduces the NOx formation at high heat zone.
