5. ge 2012 06 29 ng-development nl energy... · · 2013-12-05j420 1979 1stcogeneration module...

GE EnergyJenbacher gas engine

Martin SchneiderProduct Line Management

2GE Power & Water – Jenbacher gas engines

7/3/2012GE Proprietary Information

Shall not be used, disclosed to others, or reproduced without the express writtenconsent of General Electric Company

• Drilling/production for …land, offshore, subsea

• LNG and pipelines• Refining/petrochemical• Industrial power gen• Complete lifecycle

services

Oil & Gas

GE Energy businesses

Energy Services• Thermal power gen• Renewables• Gas Engines• Nuclear• Gasification• Water treatment• Process chemicals

Power & Water• Maintenance agreements• Smart Grid• Field services• Parts and repairs• Optimization

technologies• Plant management

82,000 employees - 140 countries 25% world’s electricity from GE technology

GE Proprietary InformationShall not be used, disclosed to others, or reproduced without the express written

consent of General Electric Company


7/3/2012

A leading manufacturer of gas engines

GE’s Jenbacher gas engines• 10,000+ engines delivered in more

than 80 countries

• 12,500 MW worldwide

• Power range from 0.25 MW to 9.5 MW

• Overall efficiency over 90%

• 2,000 employees worldwide

• Manufacturing facilities in Austria, Hungaryand China

• 7 subsidiaries plus global distributor andservice provider network of 60+ companies

• Value-added service offerings throughoutthe entire life-cycle of the engines




Four types of gas engines




Six decades of experiencewith gas engines

19571st gas engine

19851st LEANOX®

gas engine

19941st 20 cylindergas engineJ320

1997World‘s smallest20 cylinder gasengine in the3 MW power rangeJ620

2007World’s 1st 24-cylinder4 MW engine J624

2000Presentation of“High EfficiencyConcept”J420

19791st cogenerationmodule

2010World’s 1st 2-Stage-Turbocharged gasengine and 1st gasengine with ORC

J920Introducing anew, largergas engine

Highestelectricalefficiency inits class




7/3/2012

Spezific output/efficiency development Type 6

• spezific output increase >100% in 20+ years• efficiency increase ~30%rel in 20+ years




7/3/2012

Efficiency optimization

Efficiency [%]

Knocking is a limitation for output increase & efficiency optimization=> Target: Shift knocking limits




7/3/2012

Combustion

Cylinder Pressure

80100120140160180200220

-20 -10 0 10 20 30 40Deg Crank Angle

bar

• Normal combustion

• knocking limit

• Knocking

• Normal combustion

• knocking limit

• Knocking

knock limit (Knock control activ)

heavy knocking

normal combustion

Sensor




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Example for knocking damageErosion, „soft knocking“Erosion, „soft knocking“

Ring carrierloose!

Piston damaged; heavyknockingPiston damaged; heavyknocking

melting effects; heavyknockingmelting effects; heavyknocking

piston dodgingpiston dodging




LNG supply in Europe

2007 2015 2020

Increased LNG supply to WEImpact on Natural gas supply

11%

17% 18%

LNG share of NG supply*Source: E.ON Ruhrgas




7/3/2012

NG supply in Europe todayNLD: Groningen NG (MN~84)Dk: Danish NG (MN 70-72)GER: North GER: MN 72-90+,

South GER: 85+AUT: 85+FRA: 72 - 90ESP: 72 – 80+ITA: 72 - 90

Gas engines have to be designed for MN range

High MN allows fuel efficiency/output optimization

Wide MN range requires “broad band” product




7/3/2012

Installed units/MWe (Natural gas; since 1995)

NLD: 700+ units / 1,400+ MWeGER: 450+ units / 450+ MWeFRA: 250+ units / 450+ MWeBEL: 100+units / 200+ MWeESP/PRT: 500+ units / 1,000+ MWeITA: 350+ units / 500+ MWe

Largest installed base in NLD (#units & MWe)

All engines dedicated for MN84+ (AVL 3.2)




Example for gas engine optimization Type 6F

J616 MN Range BMEP CR etael t4F01 22bar 12.0:1 44.9% 383°CF11 22bar 11.5:1 44.2% 410°CF05 22bar 11.5:1 44.4% 390°CF09 22bar 12.5:1 45.6% 365°C

80+70 - 80

High MN product show up to ~1.4%pt higherfuel efficiency than „broad band“ product

NLD: F01 vs. F11 => 0.7%pts

90+

80+




7/3/2012

NG examples Spain/Portugal

Typical MN range: 72 - 78




7/3/2012

Future Gas specification NLD - 1Proposed specifications for future G-gas (L-gas):

Wobbe: 43,46 – 45,3 MJ/Nm3 (present 43,46 – 44,41 MJ/Nm3)

C2+: 0 – 8,1% propane equivalent (present <4%)

MN: >70 MN acc. to ALV 3.2 or >71 MN if hydrogen is present (toady MN> 85)

H2: <0,5% (discussion about < 10%!)

O2: <0,5%

CO2: <10,5% (due to green gas; present very low)

Changes in MN and Wobbe: instantaneousWobbe range ok for GE Jenbacher gas engines, impact onemissions to be discussed

MN range has significant impact on installed fleet & new sites

•Require broad-band product (new sites)

• Reduced electrical efficiency (e.g. Type 6: ~0.7%pt)

•Existing sites need to checked case by case

• Reduced electrical efficiency & output

!!!!!!!!




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H2: <0,5% (discussion about < 10%!) => instantaneous?

O2: <0,5%


Changes in MN and Wobbe: instantaneous?

Transient changes (MN, Wobbe, H2…) need to be proven

•LHV/Wobbe fluctuation limit: <1%/30sec

•MN fluctuation limit: 10MN/30sec

•H2-blending need to be checked case by case

CO2 impact on combustion need to be checked

!!!!!!!!!!!!

!!!!

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7/3/2012





H2: <0,5% (discussion about < 10%!) => instantaneous?

O2: <0,5%


Changes in MN and Wobbe: instantaneous

Impact on emissions

•NOx: Engine parameter settings to be checked

•Impact on THC need to be checked

• Data base/measurements based on FID calibrated on C3H8

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!!!!

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7/3/2012

EASEE Gas Standard (draft)

• No MN- limitation?• Extended LHV&Wobbe Index• Extended MN-range• H2- blending• 30mg/Nm³ sulfur limit?

Broad-band MN products required




7/3/2012

Recommendation/Conclusion• “MN” is a mandatory reference for gas engines, should become part of gas

standard• Extended MN range requires “broad band product”

• Impact need to be checked separate for new sites and for existing sites• “Broad band products” are less optimized

• Higher fuel consumption• Increased CO2 emission• Increased overall emission (higher mass flow)• Potentially reduced specific output• Impact on THC need to be discussed/investigated• Impact on C2H4 emissions need to be checked (Greenhouses)

• Transient change of gas (MN, LHV, Wobbe, H2…) need to be limited• H2-blending requires detailed studies• Green Gas standard need to be revised/checked (siloxanes….)• Impact of future “Grid codes” => primary grid stabilization????

5. ge 2012 06 29 ng-development nl energy... · · 2013-12-05j420 1979 1stcogeneration module...

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