ghenadie bulat - group leader combustion aero 70 …...1946 – ruston & hornsby developed...

16.09.2016

Unrestricted © Siemens 2016

UK Consortium on Turbulent Reacting Flows Dr. G. Bulat / Combustion

70 years of combustion developmentfor industrial gas turbines in Lincoln

Ghenadie Bulat - Group Leader Combustion Aero

16.09.2016

Outline

• Introduction

• Lincoln heritage

• Combustion development:v Pastv Presentv Future trends

• Towards digital factory

• Summary and Conclusions

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• Introduction

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169 years of history –Milestones

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Megatrends –Challenges that transform our world

GlobalizationSince 2000, the volumeof world trade has nearlydoubled.

UrbanizationBy 2050, 70 percent of theworld’s population will live incities. (2009: 50 percent)

Demographic changeThe earth’s population will increasefrom 7.3 billion people today to9.6 billion in 2050. Average lifeexpectancy will then be 82 years.

Climate changeIn 2013, scientists measured thehighest CO2 concentration in theatmosphere in 800,000 years.

DigitalizationBy 2020, the digital universe willreach 44 zettabytes – a 10-foldincrease from 2013.

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Digitalization –The great paradigm shifter

Virtual worldInsights from 16TB+

operations data per month0101001010010110010101101101011001010

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Physical worldSiemens installed base –280k connected devices

Fleet management

Meter Data Management

Neural networks

Smart grids

Autonomous fault recovery

PLMCollaboration in the cloud

Embedded software

Image-guided therapy

Imaging software

Decision support

Traffic management

Efficient buildings

Analytics

e-Tolling

Digital Factory

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Digitalization–Technologies for growth

Connectivity andInternet of Things

Mobile andcollaboration

Big data andanalytics

Cloudtechnologies

€2.4bnRevenueFY 2014

Profita-bility ++Marketgrowth +9%

€0.5bnRevenueFY 2014

Profita-bility +++Marketgrowth +15%

~€37bn

Vertical software Digital services

Enhanced electrification

Digitalization

Electrification

€19bnRevenueFY 2014

Profita-bility ++Marketgrowth +6%

€14bnRevenueFY 2014

Profita-bility +++Marketgrowth +3%

Classic servicesEnhanced automation

Automation €14bn

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Vision 2020 –A customer-oriented setup

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Acquisitions strengthen Oil & Gas business –Portfolio across entire value creation chain

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Our ProductsGas Turbines

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Global presence –Close to customers all over the world

Shareof total

worldwide

€18.8bn70,00076

Americas

Shareof total

worldwide

€27.9bn96,00070

Europe (excluding Germany), CIS,Africa, Middle East15%

Shareof total

worldwide

€10.9bn115,00069

Germany

Shareof total

worldwide

€14.4bn62,00074

Asia, Australia

Revenue by customer location Employees as of September 30, 2014 Production facilities with ≥15 employees

All figures refer to continuing operations. CIS: Commonwealth of Independent States.

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13Established in

Revenue

Figures FY14

Siemens in the UK

£5bnMajor Siemens

ManufacturingFacilities

Employees14,000

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• Introduction

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Our heritage

In 1946, a team of Sir Frank Whittle'sengineers, led by Bob Feilden, came toLincoln to develop the first industrial gasturbine, using Frank Whittle's jet enginetechnology.

ØDevelopments have continued ever since …

Ref: IDGTE 582, The History of the Industrial GasTurbine, 2011

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Our heritage

1946 – Ruston & Hornsby developed prototype gasturbine

1952 – Ruston & Hornsby delivered first productiongas turbine to Kuwait

1968 – Ruston & Hornsby acquired by GEC1969 – Ruston Gas Turbines Ltd formed1989 – GEC ALSTHOM formed1990 – European Gas Turbines created by GEC

ALSTHOM and GE (USA)1998 – ALSTOM Gas Turbines formed as part of

ALSTOM1999 – ABB ALSTOM POWER formed (GE

agreement terminated)2000 – ALSTOM acquired ABB’s 50% to form

ALSTOM Power

2003 – New ownership – Siemens

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Siemens Industrial Turbomachinery Ltd.

§ Over 60 years globalexperience in Gas Turbinedesign, manufacture &support

§ Main markets:− Oil and Gas− Industrial Power

Generation− Gas Turbine Service

§ 1,500 in the UK

§ 3,500 units sold in over 90countries

§ 1,700 of these are inoperation

§ Global purchasing network

Freeman RoadParts Warehouse

Firth RoadResearch & Development Test

Feilden House, Teal ParkService Centre

Ruston WorksGas Turbine Manufacturing

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15 MW8 MW7 MW5 MW

SGT-400

SGT-300SGT-200SGT-100

3.7 MW

1.3 MW

Industrial Small Gas Turbines Range < 15 MWCurrent Lincoln gas turbine portfolio

SGT-100 / 5 MW, 32.9%

SGT-200 / 7 MW, 31.5%

SGT-300 / 8 MW, 34.6% SGT-400 / 15 MW, 36.8%

TA / 1.3 MW TB / 3.7 MW

All figures are indicative values

SGT-400 15 MW

SGT-300 MD

SGT-100 (N)

Portfolio upgrades/ New Products

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1950 1960 1970 1980 1990 2000

TA TE TF TG TD TB

Technology considerations

Gas Turbine Engine Trends

Non-DLE

1 Silo non-DLE combustor 4 Cans 8 Cans 6 cans

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TACombustion system, 1952

Combustion Air Split

PrimaryDilution

Combustor wallcooling

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TBCombustion system, 1970

ü Reverse flow combustion system

ü Easy and quick installation

ü Increased component life

Ø Visual flame monitoring!

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Evolution of Combustion SystemsFrom diffusion to premixed flame

1952 1990s

• Increased efficiency

• Increased thermal loading

• Low emissions

• Increased efficiency

• Small footprint

• Increased component life

• Robust design

• Large footprint

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Evolution of Combustion SystemsFrom diffusion to premixed flame

Trend: Reduction in air consumption for combustion can cooling,leaner flames & more uniform temperature profiles

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DLE Combustion System

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Typical CFD of a DLE combustor

Heat releaseFlashback

Flame Stabilisation(local extinction)

CO Oxidation

NOx/ CO

formation

Temperature/flowpattern

Material Integrity

Thermal/pressure loading

20 ºC error in temperature predictionhalves the component creep life

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• Introduction

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Combustion Development ApproachComponent Test Facilities

High Pressure Combustion Rigsq Allows combustion testing at full engine

temperature and pressureq Facility to cover all current product range

Gas Fuel Mixing Facilityq Ability to mix fuels to meet full WI rangeq Covers range 15 – 65+MJ/m3 WI

Alternative liquidfuel storage

CO2 & N2Storage

H2 & COcontainers

Butane/PropaneStorage vessel

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Combustion Development ApproachLessons learned - Past

Single component testing

Long development time

Expensive development cost

Designs based on empirical

correlation and 1D calculations

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• Introduction

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Integrated Combustion Development Process

• Design modelling• 3d solid modelling• Integrated design systems

§ Fundamental understanding§ Combustion, chemical kinectics, aerodynamics, heat transfer,

lifing and integrity, acoustics

§ Advanced modelling methods§ CFD (RANS, URANS, LES): combustion, heat transfer, …

§ FEA: Creep, LCF, HCF, acoustics

§ Advanced experimental methods§ Low and high pressure rig facilities and engine testing

§ PIV, LIF, chemiluminescence, Raman, emissions, thermalpaints…

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Typical Development ProcessCombustor Design or Enhancement

Burner Design /modification

Flow andcombustionmodelling

Thermodynamic andmechanical boundary

conditions

Atmosphericburner tests

results

High pressureburner tests

results

Engine tests

Test Field

results

Gas turbine

experience

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Design Process and Requirements from CFD

Technology targets• Emissions predictions• Accurate temperature predictions• Combustion instabilities• Liquid fuel combustion

Current industrial expectation• Mixing calculations• Trend predictions for temperatures• Flame location• Transient aerodynamics

Concept

analysis

Detailedanalyses (ComplexCFD/acoustics/ chemistry)

ACtesting

Mechanicalintegrity

(heat trans/stress/life)

HPtesting

Enginetesting

Proto-typedesign

MechanicalDesign

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Combustion developmentLessons learned - Current

Reduced number of development tests (as a result of using more CFD)

-> reduced cost and increased production capacity

Optimized design concepts-> increased efficiency &reduced component costs

CFD part of the development process

-> need to increase accuracy

Integrated development approach

-> reduced time to market

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• Introduction

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Combustion developmentFuture trends

Multi-physics & multi-component design concepts

-> increased product efficiencyNovel design concepts -> increased flexibility, reduced cost

CAD to CAE & digital factory -> rapid prototyping & reduced time to marketNovel manufacturing techniques -> product competitiveness

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• Introduction

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Digitalization –Big data in Lincoln

Virtual worldü Condition based maintenance

recommendations

ü Outage optimization and reduction ofunscheduled rectification costs throughtrend and root cause analysis

ü Prediction emissions capability (PEMsinstead of CEMs)

Physical world

ü Data collection from each factory testedengine

ü Additional development datasets from wholeengine development tests

ü High quality full package test datasets

ü Remote monitoring and data collection of fieldengines

Ref: GT2016-57656

Test data from 90 engines

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Computational combustionIncreasing prediction accuracy

Mixing only Eddy-dissipationtype

Flamelet type Stochastic field/transported pdf

2 equation

URANS/LES

1990’s

Current designprocess

Futuretechnology

2000’s

COMBUSTION MODELLING

Pushing boundaries of CFD to deliver requirements

Improved computational capacityallow model development and

increase geometry and itsresolution

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Computational requirements

• Always limited by computational resource!• Traditional concerns over run times for CFD still valid

• Better models/more detailed geometries• Parallel efficiencies, CPU & GPU

• Modern methods (CFD and experimental) produce so much data that new analyses techniques are required

• Model development• The potential of new methods (LES) is being demonstrated at industrial scale• Comparatively still very computationally expensive to run and analyze

• Need for an model recommendation as an industry standard

• Learning and model development from high end modelling/experiments• DNS understanding to support combustion models• Detailed understanding of combustion and aerodynamics at industrial conditions

• Need of good quality experimental datasets

Understanding and exploiting the ever increasing computational capacity is critical toindustry adopting future applications of combustion models

• Well demonstrated in the CFD development over the decades

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Academic industrial interaction

UKTRFC benefits:

üThe forum provides through meetings and workshops an excellent singlepoint for knowledge transfer

üVisibility of current work

üVisibility of new researchers in field

üNetworking opportunities

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• Introduction

16.09.2016

Summary

Ø Combustion is an attractive and evolving field of engineering development

Ø Significant product enhancements have been achieved due to combustion R&Dover last 70 years of gas turbine development

Ø DLE technology mature and well accepted in the fieldüLower emissionsüIncreased fuel flexibilityüIncreased reliability and operability

Ø Computational requirements for combustion is still highØNeed for increase of model accuracyØNeed for multi-component/ multi-physics experimental datasets

Ø Additive manufacturing techniques and digital factory approach will promote theapplicability of combustion engineering

16.09.2016

Thank you!

Please address all correspondence to:

Siemens Industrial Turbomachinery LtdRuston HouseP O Box 1Waterside SouthLincoln LN5 7FDEngland

No part of this document may bereproduced or transmitted in any form orby any means, including photocopyingand recording without the writtenpermission of Siemens IndustrialTurbomachinery Ltd

16.09.2016

Questions?

ghenadie bulat - group leader combustion aero 70 …...1946 – ruston & hornsby developed...

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