| Customization: | Available |
|---|---|
| After-sales Service: | 1years or 2000hours |
| Warranty: | 1years or 2000hours |
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The SGT-400 is a simple, robust twin-shaft gas turbine, suitable for both power generation and mechanical drive applications.
The product services the 10 - 15 MW power band and can be used in all climates, onshore and offshore. A technological leap forward when it debuted 20 years ago, the SGT-400 continues to be a leader in operational and fuel flexibility, low emissions and overall efficiency. Enhancements to rotors and blades combined with local support and a 33% increase in the time between overhauls ensure high availability and low lifecycle costs. Recent advancements like the can-annular design with single-stage combustion mean the SGT-400 can burn a wide range of fuel compositions and run efficiently at all loads. It can meet stringent emissions standards while running loads as low as 30% and has seamless, true dual-fuel capability.
The SGT-400's twin-shaft design is simple yet robust. It features a two-bearing gas generator rotor with an 11-stage axial flow transonic compressor and a two-stage, overhung compressor turbine. The SGT-400 free power turbine also has a robust two-stage, overhung design.
Enhancements to rotors and blades have extended the availability of the turbine, which permits output speeds up to 10,000 rpm (12,075 rpm for the 11 MW configuration). The rotors are contained in heavy-duty casings that are horizontally and vertically split, so maintenance can be carried out on-site as needed. The compressor uses variable guide vanes for robust operability and optimized performance across a range of operating conditions. High-chrome blades for high-corrosive environments are also an option.
The gas turbine is equipped with a DLE combustion system to achieve low NOx emissions with both gaseous and liquid fuels. The can-annular, single-stage combustor technology can burn a wide range of fuel types and quality - including liquid fuels or gas directly from wells. Advanced controls enable true dual-fuel capability, with seamless switching between fuel types without losing production.
The compact SGT-400 gas turbine packages for both power generation and mechanical drive applications are designed to be easily transported, installed and maintained. They are equipped with factory-tested modules and offer a high power-to-weight ratio. The packages consist of the gas turbine, gearbox (if necessary), driven unit and all factory-tested fluid modules, mounted on an underbase.
The shop-tested and certified fluid system modules are common for all SGT-400 gas turbine packages and come fully wired into the control systems:
Its size and power make the SGT-400 an ideal offshore and onshore gas turbine. For example, it can be used for:
Siemens Energy delivered two SGT-400 power generation units to power the water injection system on the FPSO vessel "Cidade de Itajai," which operates at the Tiro and Sidon fields in the southern part of the Santos Basin off the coast of Brazil.
Our specialists provide local, on-site support and remote monitoring to optimize the turbine's performance and keep lifecycle costs low. Our comprehensive portfolio of services include long Term Programs (LTP), overhaul service, field service, spare parts, service exchange, remote diagnostic service, and modernization and upgrades. Core engine maintenance can be performed on-site or off-site.
SGT-400 maintenance features:
First-stage rotor blades can be axially removed for quick and easy on-site exchange, maximizing availability.
Burner modules can be easily accessed for maintenance, minimizing downtime and maximizing availability.
Multiple borescope holes allow visual inspection of the engine's interior without disassembly. Borescope inspections prevent unnecessary outages.
The SGT-400 is able to burn a wide range of gases, including gaseous fuels that aren't pipeline quality, as well as distillate liquid fuels. It covers a Wobbe fuel range from approximately 50 MJ/m3 to 17.5 MJ/m3, which includes fuels available in LNG liquefaction plants, wellhead gas and minimally processed weak wellhead gas, coke oven gas, biogas from ethanol industry waste, or landfill gas, for example. The engine has a hydrogen (H2) capability of up to 10 vol% (with DLE burners), or up to 65% (with diffusion burners with unabated NOx emissions).
The SGT-400 offers true dual-fuel DLE capability, with automatic changeover from primary to secondary fuel at any load.
To provide high fuel flexibility, the SGT-400 uses a robust can-annular combustion system with six reverse-flow tubular chambers and a high energy igniter in each combustor.
The SGT-400's DLE combustor burns a great variety of gaseous and liquid fuels and features clean combustion with low emissions.
The field-proven, reliable DLE combustor offers clean combustion with low emissions over a wide operating range.
The SGT-400 uses six reverse-flow tubular combustion chambers around a high-pressure casing. Each burner contains its own ignition source and is capable of gas-only, liquid-only or dual-fuel operation. The fuel is controlled by both a pilot and main burner, with the control system ensuring smooth, automatic changeover across the power range.
With its DLE combustion system, the turbine complies with emission regulations even at lower operation loads down to 30%.
NOx emissions: ≤ 15 ppmvd (corrected to 15% O2 dry)
The SGT-400 DLE combustion system meets the most stringent NOx and CO emissions legislation.
Since NOx emission increases exponentially with rising temperature, it is crucial to ensure that air and fuel are well mixed. The Siemens DLE combustion system uses a lean air-fuel premix with multiple fuel injection points to achieve low emissions over a wide load range.
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