Case studies in compressor reliability
and efficiency
LNG plant in China and pipeline compressor station in Turkey rely on Siemens solutions
© Siemens AG 2015. All rights reserved.
Technologies to provide benefitting gas transport
Infrastructure related transportation costs
Gas transportation costs
Topology and distance define the method
4
$/MMBTU
The most economic and efficient way to transport natural
gas is a pipeline under pressure. While liquefied natural
gas (LNG) provides more flexibility than pipeline natural
gas (PNG), it bears large fixed costs (Visiongain, 2014).
Figure 1 compares the cost per energy over distance of
gas transported by pipeline (PNG) with the one by ship
(LNG). For distances below 3,000 miles, transportation
by pipeline is more feasible while for larger distances,
transportation by ship becomes more cost-effective.
5
3
2
1
0
500
1,500
2,500
3,500
4,500
5,500
Comparison of the cost of transporting gas via line as
opposed to using LNG; it assumes a 1 tcf/year (Source: ENI)
© Siemens AG 2015. All rights reserved.
Siemens LNG portfolio
Continuous integration ensures consistent availability
Single Shaft
Compressors
Power generation
Integrated control &
safety system
Gas Turbines
MD
Switchgear
Drive Technologies
E-Motor / Generator
Power distribution
Telecomunications &
navigation
© Siemens AG 2015. All rights reserved.
Power
management
Marine systems
Industry
Automation
Transformers
Converters
Water
treatment
Working together
Close to customers and rapid response guaranteed
Siemens business unit compressors key figures 2014
• Ten main manufacturing and packaging sites covering the
complete value chain
• Headquartered in Houston and Duisburg, Germany
Houston TX, US
• More than 10,000 compressor trains operating in 95 countries
Duisburg Germany
Hengelo
Mt Vernon
Houston
LNG
Elblag
Perm
Duisburg
Mt Vernon OH, US
Huludao
Frankenthal
Leipzig
Huludao, China
Vadodara
Tailored Compression Systems (TCS)
Industrial Compressors and Applications (ICA)
Packaged Compression Trains (PCT)
© Siemens AG 2015. All rights reserved.
Hengelo, Netherlands
LNG projects
References China
Five compressor designs
in a range of standard
LNG liquefaction capacities
for the Chinese market,
from 300,000 Nm3/d to
1,200,000 Nm3/d.
1
30x104 m3/d, STC-SV(6-6-B),
variable speed
1
50x104
1
100x104
STC-SV(10-7-B),
fixed speed, twin IGV
12
1
100x104 m3/d, STC-SV(10-7-B),
fixed speed, single IGV
3
1
100x104 m3/d, STC-SV(12-6-B),
fixed speed, single IGV
11
1
120x104 m3/d, STC-SV(12-6-B),
fixed speed, single IGV
2
14
m3/d,
STC-SV(8-6-B),
fixed speed, single IGV
13
33
8
15
4
7
10
16
m3/d,
9
30
In total 33 compressors
sold with total LNG
liquefaction capacity
exceeding
23,400,000 Nm3/d
(equivalent to 6.5 mtpa).
© Siemens AG 2015. All rights reserved.
31
1
32
5
6
22
21
20
19
18
17
23
30x104 m3/d LNG reference
Project:
Xuancheng, Anhui, China 30x104 m3/d
Customer: Hangzhou Fortune Gas
End User: Xuacheng Shenran Natural Gas Co, Ltd
Commercial operation:
Application:
Model/capacity:
Pressure in/out:
Stages/impellers:
Speed/drive power:
Turndown method:
Drive Type :
2013
MRC compression
STC-SV(6-6-B)/12166 m3/h
3.2/34.0 bara
2/3+3
13405 rpm/4400 kW
Variable speed
VSDS + Asyn motor
Rotor manufactured in Germany, core compressor
manufactured and assembled in China, packaged in China
© Siemens AG 2015. All rights reserved.
4.4 MW, 4-Pole, Asyn
SV (6-6-B)
50x104 m3/d LNG reference
Project:
Kuerle, Xinjiang, China 50x104 m3/d
Customer: Hangzhou Zhongtai Cryogenic
End User: Xinjiang Bazhou Hongtong Natural Gas Co., Ltd
Commercial operation:
Application:
Model/capacity:
Pressure in/out:
Stages/impellers:
Speed/drive power:
Turndown method:
Drive type:
2013
MRC compression
STC-SV(8-6-B)/21000 m3/h
3.2/34.0 bara
2/3+3
11950 rpm/7100 kW
Adjustable IGV
Asyn motor @ 3000 rpm
7.1 MW, 2-Pole, Asyn
Rotor manufactured in Germany, core compressor
manufactured and assembled in China, packaged in China
SV (8-6-B)
© Siemens AG 2015. All rights reserved.
100x104 m3/d LNG reference
Project:
Dingbian, Shaanxi, China 100x104 m3/d
Customer: Zhongyuan Green Energy
End User: Zhongyuan Green Energy
Commercial operation:
Application:
Model/capacity:
Pressure in/out:
Stages/impellers:
Speed/drive power:
Turndown method:
Drive type:
2011
MRC compression
STC-SV(10-7-B)/30858 m3/h
3.0/42.3 bara
2/4+3
10149 rpm/11200 kW
Adjustable IGV
Asyn motor @ 1500 rpm
Rotor manufactured in Germany, core compressor
manufactured and assembled in China, packaged in China
© Siemens AG 2015. All rights reserved.
11.2 MW, 4-Pole, Asyn
SV (10-7-B)
Speed control and adjustable IGV
Reliable technology and most flexible
Application of IGV Control:
• Flow adjustment for fix
speed trains or VSDS
• Adjustment to changes
in mass flow and
discharge pressure
• Reduced power
requirement for start up
• Start up from settling
out pressure without
flaring is achievable
• Highest efficiency even
at part load
• Wide operating range
© Siemens AG 2015. All rights reserved.
Siemens pipeline portfolio
Expertise and sense of responsibility ensures consistent reliability
Industrial and aero derivative gas turbines
Proven pipeline package units
0
MW
IGT
(Siemens)
20
SGT- SGT100 300
ADGT
(RollsRoyce)
Reliable compressors
© Siemens AG 2015. All rights reserved.
Pipeline
automation
SGT500
SGT400
40
60
SGT-700
SGT-600
SGT-750
RB211 G62
TRENT 60
RB211 GT61
Zero emission
with all-electric
Embedded security
solutions
Siemens pipeline compressor package
Intrinsic reliability and serviceability
Siemens' compressor rotors consist of threedimensional impellers shrunk-on to forged steel
shafts, both made from highly corrosion resistant
stainless steel.
Rotor spacer and stub shaft are not required,
eliminating the risk of failure of these components.
Siemens forged steel leads to lower the possibility
that one of these small components creates a
major problem.
Siemens compressor end cover is secured with
bolts whereas others compressor plate is secured
by means of shear ring design
Siemens approach with bolts provides the benefit
of easy access of service.
Savings compared to shear ring design to open
and close end cover.
© Siemens AG 2015. All rights reserved.
Solid-shaft rotor
Pipeline
SPCP: Siemens pipeline compressor package
References
A snapshot of our recent projects:
Gas turbine mechanical drive SGT 400 power output at ISO
20.000 kW
Configuration:
4 x SPCP-400
3 x SPCP-400
3 x SPCP-100
2 x SPCP-200
2 x SPCP-200
4 x SPCP-200
2 x SPCP-400
1 x SPCP-100
3 x SPCP-100
Country
Turkey
Bangladesh
Bangladesh
Germany
Germany
Brazil
Egypt
Hungary
Turkey
Name:
Botas Eskisehir
GTCL Ashuganj
GTCL Elenga
Wildenranna
Werne
Coari
Burullus
Hajduszoboszlo
Botas Hanak
50,0%
Power output of SGT 400
45,0%
15.000 kW
40,0%
10.000 kW
35,0%
Efficiency SGT 400
5.000 kW
0F
14-10
0
0F
320
50
100F
68
200F
30,0%
86
300F
104
40 0F
25,0%
1220F
50
Botas Eskisehir compressor efficiency >91%
in test field results in benefitting
pipeline train efficiency above 33,6 % at ISO
© Siemens AG 2015. All rights reserved.
We are happy to answer your questions!
© Siemens AG 2015. All rights reserved.