Read DLN system MS3002:DLN system MS3002 text version

GE Oil & Gas

Get more from your Gas Turbines

DLN System for MS3002 RC and for MS5001 PA / MS5002 C and D

Benefits

Increased production Higher efficiency Compliance with environmental regulations Availability and Reliability Life extension

The benefits include: · Lower gas turbine emissions · Potential revenue from NOx credit trading markets in the US and Europe · Reduced operating costs by eliminating need for water / steam usage · No need for costly, complex, and large Selective Catalytic Reduction (SCR) systems To help satisfy revised government regulations and business requirements that demand cleaner emissions, GE Oil & Gas has enhanced the Dry Low NOx (DLN) technology for MS3002 regenerative cycle and MS5001 / 2 gas turbines. This enhanced product builds upon years of GE leadership and experience in combustion technology. This upgraded combustion system helps you to comply with local regulations requiring NOx reductions in an extended range of operating conditions. It can be easily installed during any gas turbine scheduled maintenance.

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DLN combustion arrangement

DLN System Performance The table below shows the effect of the DLN System on NOx and CO2 at base load with natural gas fuel.

MS3002 Combustion Systems Std DLN MS5001 PA Combustion Systems Std DLN MS5002 C and D Combustion Systems Std DLN

NOx (ppmvd) @ 15% O2 121 35

GAS ONLY CO2 (ppmvd) 25 80 FUEL GAS CO2 (ppmvd) 10 25 FUEL GAS CO2 (ppmvd) 10 50

Diluent Dry Dry

Operating range 70%-100%

NOx (ppmvd) @ 15% O2 142 25

Diluent Dry Dry

Operating range 50%-100%

NOx (ppmvd) @ 15% O2 145 42

Diluent Dry Dry

Operating range 50%-100%

What it is

The DLN is a patented combustion system that optimizes emissions across ambient and load range and provide feedback loop for ambient variations (such as, temperature or humidity). The upgrade includes: · Liner dilution design based on proprietary performance, emissions, and reliability data from the fleet of MS3002 DLN units · Unique independently controlled pilot fuel optimizes emissions and stability · Inlet Bleed Heating provision could increase down capability to 50% of base load for MS5001 and MS5002

How it works

Dry Low NOx (DLN) combustion system yields low emissions while operating in the dry premixed mode on natural gas fuel. The Dry Low NOx combustion system reduces NOx and CO2 emissions without steam or water injection on gas fuel units, through lean-premixed burning in multi-zone combustion liners, and by control equipment which directs fuel to the different liner zones depending upon the mode of operation.

Primary fuel nozzle P2 Speed ratio valve Gas control valve Secondary fuel nozzle Gas splitter valve DLN gas fuel system

How it works

The picture reports indicative values for load range and fuel split

MS3002 and MS5001 / 2

Primary operation · Ignition to 20% load Fuel 30% 70%

MS3002

Lean-lean operation · 20 to 70% load Fuel 30% 70%

MS5001 / 2

Lean-lean operation · 20 to 50% load

Fuel 100%

Fuel 100%

Fuel 20% 80%

Fuel 17% 83%

Second-stage burning · Transiet during transfer to premixed

Premixed operation · 70 to 100% load

Premixed operation · 50 to 100% load

Fuel-staged DLN operating modes

Scope of Supply This modification includes the following: · New combustion casings · New combustion liners · New combustion chambers · Primary and secondary fuel nozzles · Spark-plug and flame detectors · Fuel gas system valves and piping modifications

Primary fuel nozzle and combustion cover assembly Cap & conterbody assembly Premix chamber Ventury assembly

· Upgrade to Mark VI turbine control system to support the advanced control algorithms. For more detailed evaluation, please contact your GE Oil & Gas representative.

DLN Transition piece and combustion chambers

Flow sleeve

Combustion liner assembly

Wrapper

Secondary fuel nozzle assembly

1st stage

Pilot cup

2nd stage

X fire

Sub pilot

Case, combustion outer

Compressor discharge casing

Transition piece

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Nuovo Pignone S.p.A.

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COMK/MARK 839/II - Designed by: Studio Tre Fasi Printed by: Sagraf - 1-2008 ©2008 Nuovo Pignone S.p.A. all rights reserved

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DLN system MS3002:DLN system MS3002

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