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Forney Plug-n-Play Heat for SCR Reheat Applications

Forney has made low-load SCR boiler applications simple with the introduc-

tion of perimeter-fired burners. Forney perimeter-fired burners inject high

velocity air at any temperature, anywhere you need it in an SCR duct. This

allows you to eliminate the cost of expensive economizer bypass ducts and

diverting dampers. Perimeter firing eliminates the engineering and pressure

part modifications necessary with split economizer designs. With Forney

burners, the solution is simple -- Plug-n-Play Heat.

The burners are located on the outside of the SCR ductwork, firing

across the width of the duct. There is no equipment in the duct, and

the burners are continuously purged when out of service, so fouling,

plugging, flyash erosion, and other maintenance hassles are minimized.

The high velocity discharge of the burners ensures adequate penetra-

tion of heat across the duct. With Plug-n-Play Heat, no internal flow

correction devices are required. This reduces pressure drop on the

system, and eliminates another maintenance worry.

Equipment and installation costs associated with Plug-n-Play Heat

are lower than those associated with economizer gas-side bypass-

especially on units where existing structural steel makes locating new

ductwork difficult. Forney perimeter-fired burners are lightweight and

in most cases they can be supported by the SCR ductwork. Natural gas

consumption is relatively low, and some of the heat added upstream of

the SCR reactor can be recovered by the air preheater.

··

CUSTOMIZED SOLUTION -

offering external, in-duct, or

perimeter-fired SCR reheater

systems. Our engineers will

custom design and integrate the

system appropriate for your plant.

··

REDUCED INSTALLATION AND

CAPITAL COST - Forney Plug-n-

Play burners cost less than

economizer bypass ducts with their

associated dampers, actuators, and

expansion joints. Installation is

easier because of the burners' small

size and light weight-especially in

crowded SCR retrofit applications.

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CFD MODELING - Forney

engineering can perform CFD

modeling of heat distribution to

assure efficient SCR operation at all

boiler loads.

··

EXPERIENCE - Forney

technologies are proven in SCR and

other firing applications around the

world.

··

SERVICE - Forney service

engineers provide start-up

expertise and periodic maintenance

capabilities to ensure your

equipment operates reliably.

BURNERS

Summary of content (2 pages)

PAGE 1
Forney Plug-n-Play Heat for SCR Reheat Applications · CUSTOMIZED SOLUTION offering external, in-duct, or perimeter-fired SCR reheater systems. Our engineers will custom design and integrate the system appropriate for your plant. · REDUCED INSTALL ATION AND CAPITAL COST - Forney Plug-nPlay burners cost less than economizer bypass ducts with their associated dampers, actuators, and expansion joints.
PAGE 2
Perimeter Burners BURNERS Burner Specifications Heat Input Exit Temperature Exit Velocity Fuel Consumption (per MMBTU) Air Consumption (per burner) Excess Air Ignition Source Flame Detector Burner Throat Diam. Burner Outside Diam. Burner Management Enclosure Ratings Flame Length 5 mmbtu/hr 600-1500 deg. F up to 800 ft/sec Natural Gas 17scfm 670 scfm @1psig 400-800% Direct HESI Forney IDD-UV 8" 24" A-B, GE, Modicon NEMA 4, 7 20" 10 mmbtu/hr 600-1500 deg.