It is a derivative of the General Electric CF6 aircraft engine and considered to be one of the most reliable industrial gas turbines ever. These turbines were developed for use on airplanes and became the first gas turbines to be used for the production of electricity. Aircraft engines were initially adapted for stationary power use. The primary role for aeroderivative gas turbines during this early phase was for peaking power. Heavy duty gas turbines As the advantages of aeroderivative gas turbines were recognized, a new type of dedicated industrial or heavy duty gas turbine was developed. The heavy duty engines were designed directly for the main baseload generation market.

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Based on advanced aircraft engine technologies and materials, they are significantly lighter, respond faster and have a smaller footprint compared with their heavy industrial GT counterparts. The turbines are also popular due to their fuel flexibility — they allow a combination of natural gas and liquid fuel operation. In the U. Its LMS is a fusion between aero flexibility and heavy-duty power output. The LMS uses an intercooler to cool the air between the low- and high-pressure compressor.

Its free power turbine can be operated in 50 Hz or 60 Hz without a gearbox. Clutchless synchronous condensing can restore full power in less than 10 minutes. It is often deployed for renewable peaking power and electrical grid stability. Another 14 units are either in the installation or commissioning phase.

Overall, the engines have chalked up more than , hours and 84, starts. Run times vary per start from 2 to 4 hours in California to 54 hours in Australia. Fleet reliability is Pampa Energia in Argentina, owner of the longest running LMS in the fleet, just had its second purchase reach commercial operation in August The LMS has been used in several plants as a replacement for the Frame 9E in combined cycle operation due to its low-temperature exhaust.

Its exhaust characteristics match up with older 9Es and allow for use in existing plant infrastructures. Derived from the GE90 jet engine used on the Boeing , it can be throttled to adjust power output, and started or stopped without impacting maintenance intervals.

Power is available in under 10 minutes. Key features include: Dual-fuel capability without water consumption, and maintenance intervals of up to 36, hours for the hot section and 72, hours for overhaul. It is said to meet 15ppm NOx emission requirements in gas operation, and can switch between different fuels at full load without interruption.

Use cases include support to grids with growing renewable sources, power industrial needs, peaking power for hot days or as reliable baseload to an isolated power island. It is also attracting interest for LNG compression and barge applications. The LM configuration can be laid out to minimize its area footprint for maximum power density.

Coupled with its aero core, it can survive the changing environments of a barge while providing maximum power in a space-constrained area. GE will begin shipping the first LM gas turbines in The SAC single annual combustor uses water for emissions control and has accumulated 26 million operating hours.

The DLE dry low emissions does not use water and has reached 11 million operating hours. It has been used for peaking power generation, industrial cogeneration, district heating, load following, mechanical drive and combined cycle.

The LM features a two-spool optimized design resulting in lower operational maintenance cost in comparison to three-spool designs. Further features: 15 ppm NOx capability; cold start to full power in 5 minutes; gas and liquid dual fuel capabilities; and a compact footprint, highpower density and low-noise capability. Production shipments began in May It features increased core speed, exhaust temperature, simple cycle output, and combined cycle efficiency.

Currently, installation and commissioning of two units is in progress at the customer site in Thailand, with commercial operation beginning in March Mechanical drive applications will be available in GE offers a variety of upgrade solutions depending on the operating needs from the unit. GE backs up its fleet with a worldwide network of service centers. It incorporates a Mark VIe control system for the hybrid package.

Introduced in , it has three models with multiple configurations and output ranging from 22 MW to 37 MW. Water injected and dry combustor options are available. With more than 90 million operating hours across 2, units, the LM is the most widely used aeroderivative GT.

It is popular in mechanical drive and offshore power generation applications, as well as CHP and district heating. GE also offers a mobile version known as the TM It can run on natural gas, LPG and liquid fuels, and is said to ramp from start to full power in under 10 minutes.

A three-trailer design enables commissioning in less than 11 days from parking the first trailer. More than units have been sold in 25 countries over the last 10 years. The overall fleet size is close to 2, units installed worldwide. Aeroderivatives serve market segments that value specific-product attributes. Historically these include lightweight, highpower density, high operational flexibility, such as fast starts and stops, and high simple cycle efficiency.

Siemens has renamed the entire Rolls-Royce aeroderivative turbine line to align with the latest Siemens naming conventions. More than 1, of these GTs have been supplied for industrial use to 40 countries.

They have accumulated million operating hours since their introduction in Features include lightweight modular construction, ease of field repair, and use of multiple fuels. With an output between 3. Single-shaft and two-shaft versions are available. Steam injection can be adjusted to meet varying process steam or electrical requirements, depending on the application. Other applications include offshore pumping and compression, stand-by duties at nuclear power stations and combined cycle power generation.

Over 1, of these units have been sold. It is available in two 34 MW and 38 MW variants. Siemens has augmented this Rolls-Royce engine with a Dresser-Rand package design optimized for floating applications.

The variants of this machine have accumulated over 37 million hours in service. The power increase is achieved through higher core flow and compressor efficiency, rather than over-firing. Based on the Industrial Trent 60, it can shift between 3, and 3, HP without a gear box. All that is required is to change the number of blades in the LP compressor. Siemens has also derived a mobile unit from the SGT-A It is delivered in three main trailers with some additional shipped elements.

The SGT-A45 can run on gas or liquid fuels, and transition between both fuel types when one becomes unavailable.

Low NOx emissions can be achieved by adding water injection capabilities as an optional feature. The GT can generate full power in less than 8 minutes from start without need for auxiliary systems to maintain the unit in an operationally ready standby mode. In the event of a shutdown, the unit can be restarted at any time to restore power quickly, as it has no hot-lockout restrictions.

It has more than 2, aeroderivatives installed in over 50 countries worldwide. These can deliver anywhere from 30 MW to MW of power. It also boasts a major gas turbine repair and overhaul business.

Indust r ial ized and packaged with a new free turbine, the a e r o d e r i v a t i v e FT gas turbine can be configured as either a single- engine unit one gas turbine driving one 60 to 70 MW electric generator or a twin-engine unit two gas turbines driving a common to MW electric generator. The FT SwiftPac has a modular design to maximize the amount of factory assembly and reduce the amount of field assembly leading to lower costs.

Key markets include onshore and offshore power generation peaking, base load, cogeneration, combined-cycle , repowering to replace old gas turbines and mechanical drive. In , after endurance and reliability testing, the FT gas turbine was put into commercial operation.

These units have accumulated over 19, hours and over 1, cycles. The package design includes two trailers. The first contains the GT, electric generator, exhaust collector, diffuser, and engine lube oil system. The second trailer carries the 15 kV switchgear, control system, operation panel, protective relays, batteries and charger, motor control center, and the hydraulic start package. A pre-commissioned FT8 MobilePac can be driven to a site and begin generating power in nine days or less.

Over of these mobile FT8 units have been sold worldwide. More than 40 have been relocated successfully from one site to another. It can run on liquid, natural gas, or LPG, has optional black start capability and can be operated remotely. With a footprint of 72 feet by 53 feet, little site preparation is required. No foundation or concrete pad is necessary for installation. This provides FT8 fleet customers with control in the 5 to 10 millisecond range.

This package offers 30 MW or 60 MW. It comes with an assembled enclosure incorporating the gas generator, power turbine, inlet plenum, lube system, and exhaust stack. It is also available in a combined cycle configuration. Features include an integrated lube oil system, quick-disconnect cable, a combined GT and exhaust enclosure, minimal foundation requirements, and a compact layout. It is typically used for distributed generation, peaking applications, and grid support to counterbalance fluctuating wind energy.

This is augmented with technologies to generate power with less noise, lower emissions, and higher baseload and part-load efficiency using natural gas fuel.

It has been in production since and over units are in operation worldwide. The fleet has accumulated over 6. PWPS offers a full range of maintenance, overhaul and repair, as well as field service for aeroderivative GTs. Its Long-term Service Agreement LTSA provides scheduled maintenance, unscheduled maintenance, spare parts, annual audits, and site support.

It is a flange-to-flange solution provider for that machine, which GE introduced in and no longer manufactures or supports. Based on the CF aircraft engine, over of these 38 MW turbines were produced. The LM has a twin-spool generator driving a free-power turbine.

As a result, Sulzer has broadened the supplier lists for consumable items for this power turbine to help reduce overhaul cost for end users.


General Electric LM6000

Based on advanced aircraft engine technologies and materials, they are significantly lighter, respond faster and have a smaller footprint compared with their heavy industrial GT counterparts. The turbines are also popular due to their fuel flexibility — they allow a combination of natural gas and liquid fuel operation. In the U. Its LMS is a fusion between aero flexibility and heavy-duty power output.


GE Gas Turbine Manual


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