SGT-300 industrial gas turbine

The SGT-300 is a proven, robust gas turbine performing successfully since many years in power generation and combined heat and power applications.

The single-shaft turbine has an electrical power output of 7.9 MW, the twin-shaft version delivers a shaft output of 8.4 MW or 9.1 MW.

The SGT-300 has a compact arrangement, on-site maintainability and inherent reliability. It is designed to operate with a wide range of gaseous and liquid fuels.

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Ingenious design to the core

The single-shaft SGT-300 consists of a single twin-bearing rotor with heavy-duty casing. Quick core engine exchange is possible, which significantly cuts your maintenance-related downtime.

The SGT-300 twin-shaft has a 2-stage gas generator turbine and a 2-stage power turbine. The core turbine is designed for high reliability with powerful performance and quick load following. Its modular design approach allows turbine module exchanges to be carried out on-site as an alternative to a gas generator or power turbine service exchange.

Both versions of the SGT-300 gas turbine are equipped with a Dry Low Emissions (DLE) combustion system, providing low NOₓ emission levels with liquid and gaseous fuels and dual-fuel capability.

SGT-300 packages

The compact SGT-300 gas turbine packages for power generation and mechanical drive applications comprise factory-tested modules, and offer a high power-to-weight ratio. The packages incorporate gas turbine, gearbox (where applicable), drive unit and all factory-tested fluid modules mounted on an underbase, which you can easily transport, install and maintain on-site.

The shop-tested and certified fluid system modules are the same for design across the SGT-100 to SGT-400 range and come fully wired into the package control systems:

Auto drains module
Gas fuel module
Lube oil module
Liquid fuel module (optional)

The health and safety of the operation and maintenance staff are paramount. This is why our SGT-300 packages are designed with a special emphasis on, e.g., walkways and handrails, noise suppression, access doorways, and safety interlocks.

Cogeneration plants

With its excellent efficiency and steam-raising capability of more than 18 tonnes per hour, the SGT-300 forms the core of reliable, efficient and powerful combined heat and power plants (CHP). This contributes towards achieving overall plant efficiencies of 80% or higher.

When compared with conventional energy supplies, a cogeneration plant based on the SGT-300 will provide electrical power, heating and/or cooling with the benefit of:

significant reductions in energy costs
security of energy supplies
reductions in total emissions of carbon dioxide
improved flexibility

Comprehensive portfolio of customer service activities

Our comprehensive portfolio of services provides low life cycle cost and optimum performance throughout the turbine’s life cycle: Long Term Programs (LTP), overhaul service, field service, spare parts, service exchange, remote diagnostic service, and modernization and upgrades.

Siemens specialists offer on-site support all over the world.

The SGT-300 is designed for easy maintenance:

Horizontally split compressor casing
Horizontally and vertically split inlet casing
Large side doors on enclosure for equipment exchange
Internal lifting equipment
Package designed for gas turbine removal on either side

Coverage of a wide Wobbe range

The single-shaft SGT-300 operates on a wide range of gases, including gas fuels outside of standard pipeline quality. It covers a Wobbe fuel range from approximately 50 MJ/m³ down to 17.5 MJ/m³, which include, e.g., gas fuels available in LNG liquefaction plants, wellhead gas and minimally processed, weak wellhead gas, biogas from ethanol, industry waste, or landfill gas. The engine, equipped with DLE burners, is capable to burn up to 30 vol% of hydrogen (H2).

The SGT-300 is also able to burn a large number of liquid fuels and offers dual-fuel capability, with automatic changeover from primary to secondary fuel at any load.

Low emissions despite rugged industrial design

The proven and reliable Dry Low Emissions (DLE) combustor offers clean combustion with low emissions over a wide operating range.

The SGT-300 uses six reverse-flow tubular combustion chambers positioned around a high-pressure casing. Each burner contains its own ignition source and is capable of gas-only, liquid-only or dual-fuel operation. Fuel is controlled by both a pilot and a main burner, with the control system providing for smooth changeover across the power range.

With the DLE combustion system, emission compliance at lower operating loads down to 50% or lower is possible.

NOₓ emissions: ≤ 15 ppmvd (corrected to 15% O₂ dry)

	8 MW version	9 MW version
Power output	8.4 MW	9.1 MW
Fuel*	Natural gas, liquid fuel, dual fuel	Natural gas, liquid fuel, dual fuel
Efficiency	35.3%	36.0%
Heat rate	10,204 kJ/kWh (9,666 Btu/kWh)	10,003 kJ/kWh (9,476 Btu/kWh)
Turbine speed	5,750 – 11,500 – 12,075 rpm	5,750 – 11,500 – 12,075 rpm
Pressure ratio	13.5 : 1	14.1 : 1
Exhaust mass flow	29.5 kg/s (67.0 lb/s)	30.4 kg/s )65.0 lb/s)
Exhaust temperature	490 °C (914 °F)	504 °C (939 °F)
NOₓ emissions**	≤ 15 ppmvd	≤ 15 ppmvd

	Power generation package	Mechanical drive package
Approx. weight	58.967 kg (130,844 lb)	30,409 kg (67,042 lb)
Length	11.9 m (39.0 ft)	6.9 m (22.6 ft)
Width	2.7 m (8.8 ft)	2.9 m (9.5 ft)
Height	4.0 m (13.1 ft)	3.5 m (11.5 ft)

SGT-300 gas turbine

Compact arrangement, inherent reliability

Highlights of the SGT-300 gas turbine

Ingenious design to the core

SGT-300 packages

Power generation package

Mechanical drive package

Cogeneration plants

Powering a cogeneration plant

Comprehensive portfolio of customer service activities

Rapid core exchange option for minimized downtimes

Axial blade attachment

Easy combustor maintenance

Borescope holes

Coverage of a wide Wobbe range

Robust combustion with high fuel flexibility

Clean, flexible operation

Low emissions despite rugged industrial design

Clean combustion for stringent emission compliance

NOₓ limitation with lean premix of air and fuel

Technical data

Performance data for simple cycle power generation

Performance data for mechanical drive

Physical dimensions and weight

The SGT-300 is suitable for the following applications and industries:

Hundreds of installations worldwide

Find out more about our gas turbine offerings

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SGT-300 Poster

Power output	7.9 MW(e)
Fuel*	Natural gas, liquid fuel, dual fuel
Frequency	50/60 Hz
Gross efficiency	30.8%
Heat rate	11,704 kJ/kWh (11,094 Btu/kWh)
Turbine speed	14,045 rpm
Pressure ratio	13.7 : 1
Exhaust mass flow	30.2 kg/s (66.6 lb/s)
Exhaust temperature	534 °C (993° F)
NOₓ emissions**	≤ 15 ppmvd

SGT-300 gas turbine

Compact arrangement, inherent reliability

Excellent steam-raising capability and efficiency

Dry Low Emissions (DLE)

Fuel flexibility matters

Rapid core engine exchange minimizes downtime

Suitable for industrial power generation

Suitable for mechanical drive