Single Shaft Compressors
Innovative and Reliable: Siemens Single Shaft Turbocompressors
General Information
- Overview
- Compressor Train Solutions
- Mega Test Center
A reliable, environmentally friendly and cost-effective compression solution is a key driver for a profitable and sustainable business. Whether you are an oil and gas company, an EPC or architect engineer, Siemens offers single shaft compression solutions which will exactly meet your needs and increase your profitability.
Compressor Train Solutions out of one hand
We do not just sell turbocompressors. We have a unique compressor train competence from which our customers can benefit.
Whatever your process requirements are, Siemens offers the compressor solution you are looking for. From a single machine to a complex compressor train, we offer a tailor-made compression solution.
Siemens compressors, drives – steam or gas turbine or electrical motor –, controls and other auxiliaries are designed and perfectly matched to meet individual customer needs. Outstanding knowledge of interaction between the components - particularly the main rotating parts - is a result of decades of experience in this field. We can predict reliably how our compressor trains optimize your processes.
Siemens manages the interfaces and guarantees the system's performance as required and specified. Our customers can rely on a sophisticated compression solution and do not simply purchase an assortment of hardware.
In addition to manufacturing and assembling compressor trains, Siemens is one step ahead. The new workshop facility in Duisburg, Germany, allows to test large compressor trains, driven by steam or gas turbines or electric motors. With this mega test center, Siemens is a leading player in the growing markets of large applications by providing adequate test bed facilities and machining capabilities matching our customers' demands.
Technical Highlights:
- Electric motor drive up to 100 MW coupling power
- Steam turbine drive up to 35 MW coupling power
- Gas turbine drive up to 160 MW coupling power
Best in Test – Mega Test Center Duisburg
With the Mega Test Center, brought into operation at the beginning of 2008, Siemens is underpinning its compressor train expertise in the oil & gas and process industry. This includes compression solutions for refineries, chemical and petrochemical plants, natural gas transport or storage and air separation.
Siemens is fully up to date and can offer appropriate test conditions for future oriented machines. These include LNG (Liquefied Natural Gas), E-LNG or the production of liquid fuels and chemicals from coal or gas (Coal-to-Liquids, Gas-to-Liquids).
The Mega Test Center at a glance:
- Building dimensions (length x width x height):
180 m x 40 m x 35 m - Assembly and testing of up to six compressor trains at a time
- Compressor train test runs under full load up to 100 MW in closed cycle
- Compressor test runs with:
- Electric drive with pump input up to 100 MW
- Steam turbine drive with up to 35 MW pump input (100 bara/500°C/140 t/h steam)
- Gas turbine drive with up to 160 MW pump input - Crane specifications:
- 1st level 2 x 350 t/100 t @ 25.90 m hook height
- 2nd level 3 x 100 t/25 t @ 23.05 m hook height
- 3rd level 6 x 10 t @ 19.00 m hook height - Direct connection to the heavy-duty crane at the port via rail crossing
- Supply of natural gas at up to 10 kilograms per second
- Supply of coolant at 7.500 cubic meters per hour
Our Portfolio (6)
STC-ECO
Hermetically sealed integrated motor/compressor unit for dirty-gas applications onshore, offshore and subsea
- Description
- Technical Data
- Benefits
- Design Concept
The challenges of upstream dirty-gas compression together with other demanding applications which have traditionally suffered from poor seal reliability call for a radically different approach to the design of compression solutions.
Introducing the STC-ECO, Siemens' sealless technology platform. It has been designed for dirty-gas application in the upstream, midstream and downstream sectors. Focus applications will include field depletion, gas and oil separation, gas gathering, gas lift and many others.
The STC-ECO fully complies with API 617 specifications and can be supplied to NACE standards. It will be available with four different power ratings:
| LP1* | LP2 | HP1 | HP2 | |
| Power (MW) | 7.5 | 10 | 15 | 20 |
| Rated speed (rpm) | 12,200 | 9,500 | 9,500 | 7,600 |
| Speed range (typical) | 30 - 105% | |||
| No. impellers | up to 6 | up to 6 | up to 6 | up to 6 |
| Configuration | inline and back to back | |||
| Casing design | 1500# | 1500# | 2500# | 2500# |
| Dimensions (m) | 4.8 x 4.1 x 4.6 | 4.8 x 4.1 x 4.6 | to follow soon | |
| Footprint reductions (%)** | >40 | >40 | to follow soon |
- Increases uptime due to absence of seals and minimal number of sub systems
- Environmentally friendly due to zero emissions
- Allows for a smaller compressor building due to a footprint reduction of >40 percent
- compared to a conventional VSD-driven compressor with intermediate gear
- Easy to install as a single integrated solution
- Less maintenance due to reduced number of auxiliary systems
- Wide operating range through variable-speed drive
STC-ECO - A fully proven solution
Representing a quantum leap in compressor technology, the STC-ECO has been co-developed by Shell and Siemens, two companies enjoying a long-standing mutually cooperative relationship. Key to the success of the project, the Shell research team has been part of the joint development group. To date, the STC-ECO is the only API-conforming sealless compression solution available for dirty-gas applications without need for clean-gas supply.
Preceded by months of extensive inhouse testing, in autumn 2006 the STC-ECO prototype was deployed at NAM's Vries-4 gas gathering site near Groningen, Netherlands. For more than 20 months, it has operated with dirty process gas in modulating mode and under routine asset control. During this time, it was subjected to a wide range of contaminants, including sand and water.
A scheduled inspection after its first year of general use-and-abuse operation in saturated gas confirmed that the STC-ECO prototype was in excellent condition. Not only did the test prove the suitability of the design for the intended applications, but additional tests also supported the confidence in achieving the desired 5-years maintenance interval, which had been among the key performance criteria in the development of the STC-ECO.
Following the completion of field testing, the STC-ECO prototype continued to operate as a standard machine, achieving some 10,000 operating hours by August 2008, effectively transforming the unit from prototype-undertest to an extension of normal production facilities.