steam generator innovations - siemens main configurations. horizontal gas path ... • sec. steam...
TRANSCRIPT
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Steam GeneratorInnovations
Peter Rop
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NEM: a global presence
6 35,000
6
55025
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Product overview
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Advanced HRSG design options:
Cycling & Fast start: Full GT power in 12 min
High steam temperatures: 600°C
High steam pressure: > 180 bar(a)
Design options
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TURBINE EXHAUSTFLOW
SU
PE
RH
EA
TE
R
EV
AP
OR
AT
OR
FEEDWATERSUPERHEATED STEAM
EXHAUSTTO STACK
STEAMDRUM
EC
ON
OM
IZE
RSU
BC
OO
LE
DW
AT
ER
2P
HA
SE
MIX
TU
RE
SU
PE
RH
EA
TE
DS
TE
AM
TURBINE EXHAUSTFLOW
SUPERHEATER
EVAPORATOR
ECONOMIZER
SUPERHEATED STEAM
EXHAUST TOSTACK
FEEDWATER
STEAMDRUM
SUBCOOLED WATER
2 PHASE MIXTURE
SUPERHEATED STEAM
HorizontalHRSG
VerticalVerticalHRSGHRSG
Main configurations
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Horizontal gas pathOptimized HP drum“normal” SH + headersOnly subcritical
DrumPlus: HNC fast-start
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• Minimize drum wall thickness
• Hold-up: > 1 min
• Sec. steam dryers outside drum> NEM patent
Drum Plus design
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Total solution: flexibility
multipledowncomers
SH1connections
Separatorbottles
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Horizontal gas path2-stage evaporator“normal” SH with headersStability
Horizontal OTSG
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Horizontal gas pathDouble evaporator+ 2-phase redistribution
“normal” SH + headers
Horizontal OTSG
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Vertical gas pathMulti-pass evaporatorSerpentine bundlesPlot space
Vertical OTSG
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Serpentine bundles
Vertical OTSG
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VOTSG: 3p + RH
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Modular VOTSG
“Clean” designDry-running capabilityWarm casing:
fuel indifferentModular design:
fast erection
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Header-type Heat Exchanger
Large power
Fast start
Multiple media options: geothermal, moltensalt, ORC etc.
Design options
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Steam generator
FW in
Steam out
HTF in
HTF out
Reheater
HTF out
HTF in
Steam out
Steam in
Top view
Heat Exchanger
Once-Through heat exchanger design
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264 MWth Steam Generator (Blythe)
Heat Exchanger
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Nuclear fusion power plant:
1120 MWth 2x50% OTSG + RH
Heat Exchanger
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Geothermal & Organic Rankine Cycle applications
Heat Exchanger
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THANK YOU!