steam turbine systems for chp

Compressor TrainingCasing Design

12008

The world turns to Elliott

Steam Turbines In Biomass Applications

CHP Biomass Short Course Greensburg, PA

November 17 & 18, 2010

Gary S. DavisMgr, Industrial Power Generation

Elliott Group901 North Fourth St

Jeannette, PA 15644


Current Observations Current Observations 1.1. Large CHP very Limited Large CHP very Limited –– St. Paul, MN Thermal Energy St. Paul, MN Thermal Energy

65 MW65 MW2.2. Ideal Scale: 20 MW and smaller, 5 MW modules, Ideal Scale: 20 MW and smaller, 5 MW modules,

community based:community based:Feedstock Management Feedstock Management –– different types of fuelsdifferent types of fuelsSmaller storage & footprint <5 AcresSmaller storage & footprint <5 AcresCentralized Processing & Storage (VA Centralized Processing & Storage (VA –– Winter 1000 T)Winter 1000 T)Easier ZoningEasier ZoningKey CHP Key CHP –– more easier to find customers near more easier to find customers near populated areas. PJM populated areas. PJM –– $0.02/Kw$0.02/Kw--Hr for grid penalty Hr for grid penalty ––generate near users.generate near users.<100,000 Tons/year CO2 <100,000 Tons/year CO2 –– under regulatory under regulatory ReqReq’’tsts

SMALL SCALE Biomass CHP!!SMALL SCALE Biomass CHP!!


22008


Controlled Extraction Turbine – Large Conventional Scale CHP

Controlled Extraction Turbine Controlled Extraction Turbine –– Large Large Conventional Scale CHPConventional Scale CHP


70,000 HP 2000# Steam Turbine


32008


Typical Multivalve ArrangementTypical Multivalve ArrangementTypical Multivalve Arrangement


Typical Multivalve Steam End Typical Multivalve Steam End Typical Multivalve Steam End


42008


Typical Multivalve – Valve Seat locationsTypical Multivalve Typical Multivalve –– Valve Seat locationsValve Seat locations


Multi Valve & Part Load EfficiencyMulti Valve & Part Load EfficiencyMulti Valve & Part Load Efficiency


52008


Multi Valve & Part Load EfficiencyMulti Valve & Part Load EfficiencyMulti Valve & Part Load Efficiency

Valve Lift Curve Performance


Multivalve Extraction Diaphragm Multivalve Extraction Diaphragm Multivalve Extraction Diaphragm


62008


Multivalve Extraction DiaphragmMultivalve Extraction DiaphragmMultivalve Extraction Diaphragm


70,000 HP 2000# Steam Turbine


72008


Conventional Single Valve Turbine Single or Multistage

Conventional Single Valve Turbine Conventional Single Valve Turbine Single or Multistage Single or Multistage

HP Inlet

Exhaust BP or Condensing

V1


Typical Single Valve Single Stage Turbine Typical Single Valve Single Stage Turbine Typical Single Valve Single Stage Turbine


82008


Single Valve Turbine HandvalvesSingle Valve Turbine Single Valve Turbine HandvalvesHandvalves


Turbine Power & Part Load EfficiencyTurbine Power & Part Load EfficiencyTurbine Power & Part Load Efficiency

Single governor valve, nozzle grouping

NORMAL OPERATION

VALVE #2

VALVE #1


92008


Typical Drilled & Reamed Nozzle RingTypical Drilled & Reamed Nozzle RingTypical Drilled & Reamed Nozzle Ring


Auto Hand Valve Auto Hand Valve Auto Hand Valve


102008


Single Valve & Part Load EfficiencySingle Valve & Part Load EfficiencySingle Valve & Part Load Efficiency


Single Valve Single Stage Turbine Single Valve Single Stage Turbine Single Valve Single Stage Turbine


112008


Typical Single Valve Multistage Condensing Turbine

Typical Single Valve Multistage Typical Single Valve Multistage Condensing TurbineCondensing Turbine


Single Valve Multistage Cross SectionSingle Valve Multistage Cross SectionSingle Valve Multistage Cross Section


122008


Conventional Single Valve Turbines “Poor Boy” Extraction

Conventional Single Valve Turbines Conventional Single Valve Turbines ““Poor BoyPoor Boy”” ExtractionExtraction

HP Inlet

Exhaust BP

V1

HP Inlet

V1

Exhaust Condensing


Conventional Single Valve Turbine “Poor Boy” Extraction – High BP

Conventional Single Valve Turbine Conventional Single Valve Turbine ““Poor BoyPoor Boy”” Extraction Extraction –– High BPHigh BP

HP Inlet

Exhaust BP 75 psig

V1 V1

Exhaust BP or Condensing 5psig

450 psig 16KLb/Hr

16K Lb/Hr

350KW Induction

345KW Synch


132008


Summary of Single Valve Turbine Pro’sSummary of Single Valve Turbine ProSummary of Single Valve Turbine Pro’’ss

• Low cost, reliable solution for CHP vs. MV• Immediate start up, warm up period req’d for MV:

supports peaking operation.• Supports seasonal operation, maintenance with

clutch option; no cooling steam/idling steam.• Leadtime: SV 34-50 vs. MV at 62-70 weeks• Backpressure up 375 psig• Condensing Operation – 48”Class 125 LBFF

Exhaust , typically up or down orientation.• No Control Oil required, simplifies LO system


D&S Saturated Steam Operation < 400 PSIGSuperheat is always a plus!

D&S Saturated Steam Operation < 400 PSIGD&S Saturated Steam Operation < 400 PSIGSuperheat is always a plus!Superheat is always a plus!


142008








152008


Simple Induction Generator PackageSimple Induction Generator PackageSimple Induction Generator Package


Simple Synchronous Generator PackageSimple Synchronous Generator PackageSimple Synchronous Generator Package


162008


CYR, 500 KW SynchronousSouthern Methodist University, Texas

CYR, 500 KW SynchronousSouthern Methodist University, Texas


DYR, 2100 KW SynchronousLondon Health Sciences Center, Ontario

DYR, 2100 KW SynchronousLondon Health Sciences Center, Ontario


172008


DYR8, 5500 KW Synchronous, 42” Exh. Enwave Energy Corporation, Ontario

DYR8, 5500 KW Synchronous, 42” Exh. Enwave Energy Corporation, Ontario


QUESTIONS??QUESTIONS??QUESTIONS??Elliott Group

901 North Fourth St.Jeannette, PA 15644

724-527-2811www.elliott-turbo.com

Gary S. DavisManager, Industrial Power Generation

[email protected]

Daniel VucelichSr. Marketing Engineer, [email protected]

724-600-8595

steam turbine systems for chp

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