Movatterモバイル変換

[0]ホーム
URL:

Wikipedia

General Electric LM2500

TheGeneral Electric LM2500 is an industrial and marinegas turbine produced byGE Aviation. The LM2500 is a derivative of theGeneral Electric CF6 aircraft engine.

LM2500
An LM2500 onUSS Ford (FFG-54)
TypeAeroderivative gas turbine
National originUnited States
ManufacturerGeneral Electric
First run1960s
Developed fromGeneral Electric CF6

As of 2004, the U.S. Navy and at least 29 other navies had used a total of more than one thousand LM2500/LM2500+ gas turbines to powerwarships.[1] Other uses includehydrofoils,hovercraft andfast ferries.

In 2012, GE developed anFPSO version to serve the oil and gas industry's demand for a lighter, more compact version to generate electricity and drive compressors to send natural gas through pipelines.[2]

Design and development

edit
This sectionneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources in this section. Unsourced material may be challenged and removed.
Find sources: "General Electric LM2500" – news ·newspapers ·books ·scholar ·JSTOR(April 2024) (Learn how and when to remove this message)
 
A heavy lift lowers the main propulsion module into the hull ofUSS Bunker Hill (CG-52) during construction atIngalls Shipbuilding. The module consists of two General Electric LM2500 gas turbine engines and a Westinghouse gear reduction unit.

The LM2500 was first used on the US NavyGTS Admiral W. M. Callaghan in 1969, after the original FT-4 gas turbines experienced many technical problems.[3] Later, they were used in US Navy warships in theSpruance class of destroyers and the relatedKidd class, which were constructed from 1970. In this configuration it was rated to 21,500 shp (16,000 kW). This configuration was subsequently used into the 1980s in theOliver Hazard Perry-classfrigates, andTiconderoga-classcruisers. It was also used by one of People's Republic of China'sType 052 Luhu Class Missile Destroyer (Harbin 112) acquired before the embargo.

The LM2500 was uprated to 26,500 shp (19,800 kW) for theArleigh Burke-class destroyers, which were initiated in the 1980s and started to see service in the early 1990s, and the T-AOE-6 class of fast combat tanker.

In 2001 the LM2500 (20 MW) was installed in a sound-proof capsule in the South African NavyValour class (Meko A-200 SAN) frigates as part of a CODAG propulsion system with two MTU 16V 1163 TB93 Propulsion Diesels.

The current generation was uprated in the late 1990s to over 30,000 shp (22,000 kW).

LM2500 installations place the engine inside a metal container for sound and heat isolation from the rest of the machinery spaces. This container is very near the size of a standard 40-foot (12 m)intermodal shipping container – but not the same, the engine size very slightly exceeds those dimensions. The air intake ducting may be designed and shaped appropriately for easy removal of the LM2500 from their ships.

The LM2500+ is an evolution of the LM2500, delivering up to 40,200 shp (30,000 kW) or 28.6 MW of electric energy when combined with anelectrical generator. Two of such turbo-generators have been installed in the superstructure near thefunnel ofQueen Mary 2, the world's largest transatlantic ocean liner, for additional electric energy for the liner to reach higher sea speeds..Celebrity Cruises uses two LM2500+ engines in theirMillennium-class cruise ships in aCOGAS cycle (actually COGES, as the turbines generate electricity rather than driving the shafts directly).

The LM2500 is license-built in India byHindustan Aeronautics Limited;[4] in Italy byAvio Aero;[citation needed] and in Japan byIHI Corporation.[5] (Subsequent to the February 2024 reporting of an IHI companywhistleblower;[6] On April 24, 2024, IHI announced that investigation was underway by Japan'sMinistry of Land, Infrastructure, Transport and Tourism of its subsidiary, IHI Power Systems Co., which had falsified its engine data since 2003, impacting over 4,000 engines globally.[7])

The LM2500/LM2500+ can often be found as turbine part ofCODAG,CODOG,CODLAG propulsion systems or in pairs as powerplants forCOGAG systems.[citation needed]

Applications

edit

Aircraft carrier:

Amphibious assault ship:

Cruiser:

Destroyer:

Frigate:

Fast Combat Support Ship:

Maritime Prepositioning Force:

Littoral combat ship:

Corvette:

Maritime Security Cutter, Large:

Fast AttackPatrol boat

Passenger Ship:

Variants

edit

The LM2500 is available in 3 different versions:

  • The LM2500 delivers 33,600 shp (25,100 kW) with athermal efficiency of 37 percent atISO conditions. When coupled with an electric generator, it delivers 24 MW of electricity at 60Hz with a thermal efficiency of 36 percent at ISO conditions.[9]
  • The improved, 3rd generation, LM2500+ version of the turbine delivers 40,500 shp (30,200 kW) with a thermal efficiency of 39 percent at ISO conditions. When coupled with an electric generator, it delivers 29 MW of electricity at 60Hz with a thermal efficiency of 38 percent at ISO conditions.[10][11]
  • The latest, 4th generation, LM2500+G4 version was introduced in November 2005 and delivers 47,370 shp (35,320 kW) with a thermal efficiency of 39.3 percent at ISO conditions.[12]

Derivatives

edit
  • The GE TM2500 is derived from the LM2500, and mounted on a trailer that makes it possible to move it to wherever 30 MW of temporary electricity generation is required.[13] It can be installed and commissioned in 11 days.[14]

Specification

edit

The basic LM2500 has a single shaft gas generator derived from the CF6, comprising a 16 stage compressor driven by a two stage air-cooled HP turbine. The combustion chamber is annular. Shaft power is generated by a 6-stage power turbine mounted in the gas generator exhaust stream. Additional power is obtained from the LM2500+ by the addition of a zero stage to the compressor, making 17 stages in all.Specifications for three models of LM2500 series gas turbine engines:

LM 2500 series gas turbine engines specifications
Performance CategoryLM2500[15][16][17]LM2500+[18][19][17]LM2500+G4[20][21][17]
Output33,600 shp (25,060 kW)40,500 shp (30,200 kW)47,370 shp (35,320 kW)
Fuel consumption0.373 lb/shp-hr (227 g/kW-hr)0.354 lb/shp-hr (215 g/kW-hr)0.352 lb/shp-hr (214 g/kW-hr)
Heat rate6,860 Btu/shp-hr (9,705 kJ/kW-hr)6,522 Btu/shp-hr (9,227 kJ/kW-hr)6,469 Btu/shp-hr (9,150 kJ/kW-hr)
Exhaust gas flow155 lb/s (70.5 kg/s)189 lb/s (85.9 kg/s)205 lb/s (93 kg/s)
Exhaust gas temperature1,051°F (566°C)965°F (518°C)1,020°F (549°C)
Turbine speed (rpm)3,6003,6003,600
Thermal efficiency36%38%39%
Weight4.7 ton5.25 ton5.25 ton

See also

edit

Related development

Comparable engines

Related lists

References

edit
  1. ^"GE Marine to Supply IHI with LM2500 Gas Turbines to Power Japan's 15DDG AEGIS Destroyer" (Press release). GE Aviation. 6 May 2004. Archived fromthe original on 17 October 2006.
  2. ^"From aircraft to blowout preventer, GE's global technology cross-pollinates". World Oil Online. 10 September 2012.Archived from the original on 14 March 2014. Retrieved10 September 2012.
  3. ^"GTS Admiral W.M. Callaghan | MARAD".www.maritime.dot.gov. Archived fromthe original on 1 October 2020. Retrieved11 August 2020.
  4. ^GE Marine Solutions Military page[permanent dead link]
  5. ^"GE to Provide IHI with LM2500 and LM500 Gas Turbines for Japan's New 24DDH Destroyer; IHI/GE Celebrate Milestone | GE Aviation".www.geaviation.com. Retrieved29 July 2022.
  6. ^"Japan's IHI rigged data for over 4,000 engines at least since 2003".english.kyodonews.net. Kyodo News. Retrieved29 April 2024.
  7. ^"IHI Subsidiary Falsifies Data on Engine Performances of Ships and Trains".The Japan News. Retrieved29 April 2024.
  8. ^"'GE Marine has Long Been a Trusted Supplier to the Turkish Naval Forces!'".
  9. ^"LM2500 Marine Gas Turbine Data Sheet"(PDF). GE Aviation. Archived fromthe original(PDF) on 15 September 2012. Retrieved4 January 2014.
  10. ^"LM2500+ Marine Gas Turbine Data Sheet"(PDF). GE Aviation. Archived from the original on 29 July 2012.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  11. ^Ramsdal, Roald (27 October 2014)."På disse plattformene fyrer de minst for måkene".Teknisk Ukeblad.Archived from the original on 28 October 2014.
  12. ^"LM2500+G4 Marine Gas Turbine Data Sheet"(PDF). GE Aviation. Archived fromthe original(PDF) on 14 March 2014. Retrieved27 July 2012.
  13. ^"GE TM2500 Gas Turbine". VBR Turbine Partners. Retrieved30 August 2019.
  14. ^"Mobile Aeroderivative Gas Turbine TM2500".general Electric. Retrieved30 August 2019.
  15. ^"LM2500".Archived from the original on 13 May 2016. Retrieved16 May 2016.
  16. ^"LM2500 engine"(PDF).Archived(PDF) from the original on 22 October 2016. Retrieved16 May 2016.
  17. ^abc"LM2500 series gas turbine engine".Archived from the original on 25 March 2016. Retrieved16 May 2016.
  18. ^"LM2500+".Archived from the original on 14 May 2016. Retrieved16 May 2016.
  19. ^"LM2500+ engine"(PDF).Archived(PDF) from the original on 22 October 2016. Retrieved16 May 2016.
  20. ^"LM2500+G4".Archived from the original on 14 May 2016. Retrieved16 May 2016.
  21. ^"LM2500+G4 engine"(PDF).Archived(PDF) from the original on 10 January 2017. Retrieved16 May 2016.

External links

edit
Wikimedia Commons has media related toGE LM2500.
[8]ページ先頭
©2009-2025 Movatter.jp