View source for General Electric LM6000

{{Short description|Gas turbine used for power generation}}
{{infobox aero engine
 |name= LM6000
 |image= General Electric LM6000.jpg
 |caption= LM6000 GTG in an electrical [[power plant]] application
 |engine_type= [[Aeroderivative gas turbine]]
 |national_origin = United States
 |manufacturer= [[GE Aviation|General Electric]]
 |first_run= 
 |major_applications= 
 |number_built =  
 |developed_from = [[General Electric CF6]]
 |developed_into = 
 |variants_with_their_own_articles = 
}}

The '''[[GE Aviation|General Electric]] LM6000''' is a [[turboshaft]] [[aeroderivative gas turbine]] engine. The LM6000 is derived from the [[General Electric CF6#CF6-80C2|CF6-80C2]] [[aircraft]] [[turbofan]]. It has additions and modifications designed to make it more suitable for marine propulsion, industrial power generation, and marine power generation use. These include an expanded [[turbine]] section to convert thrust into shaft power, supports and struts for mounting on a steel or concrete deck, and reworked controls packages for power generation. It has found wide use including [[peaking power plant]]s, fast [[ferry|ferries]] and high speed [[cargo ship]] applications.

==Design and development==

The LM6000 provides {{cvt|54,610|shp|abbr=|lk=on}} from either end of the low-pressure rotor system, which rotates at 3,600 rpm. This twin-spool design with the low-pressure turbine operating at 60 Hz, the dominant electrical frequency in North America, eliminates the need for a conventional power turbine. Its high efficiency and installation flexibility make it ideal also for a wide variety of utility power generation and industrial applications, especially [[Peaking power plant|peaker]] and [[cogeneration]] plants. 

GE has several option packages for industrial LM6000s, including ''SPRINT'' (Spray Inter-Cooled Turbine), water injection (widely known as "[[NOx]] water"), STIG (Steam Injected Gas Turbine) technology and DLE (Dry Low Emissions) which uses a combustor with premixers to maximize [[combustion efficiency]].  The  SPRINT option is designed to increase efficiency and power of the turbine, while the water injection, STIG, and DLE are for reducing emissions. An alternative form of power augmentation is Evaporative Cooling, which is a water fogging system that sprays a fine mist of water into the inlet air before the air filters.  This system is high-maintenance and may be replaced by chillers in newer units.  The SPRINT system injects [[demineralized water]] into the engine either upstream of the low-pressure compressor or between the low-pressure and high-pressure compressors.  The water-injection system injects water into the primary or secondary fuel nozzle inputs, usually on natural-gas-fired engines.  

The GE LM6000 PC is rated to provide more than 43 MW with a [[thermal efficiency]] of around 42% LHV<ref>[http://www.geaviation.com/engines/docs/marine/datasheet-lm6000.pdf GE LM6000 product brochure] {{webarchive|url=https://web.archive.org/web/20150905141815/http://www.geaviation.com/engines/docs/marine/datasheet-lm6000.pdf |date=2015-09-05 }}</ref> at [[ISO 3977|ISO conditions]].  With options, this can be increased to around 50 MW rated power.<ref>[http://www.geaviation.com/marine/engines/military/lm6000 GE LM6000 page]</ref>

==Applications==
Over 1000 LM6000 gas turbines have shipped, and have collectively operated for over 21 million hours. Applications include power generation for combined-cycle or peak power.{{cn|date=January 2022}} Other applications include [[combined heat and power]] for industrial and independent power producers.

==See also==
{{aircontent
|related=
* [[General Electric CF6]]
* [[General Electric LM2500]]
* [[General Electric LMS100]]

|similar engines=

|lists=
* [[List of aircraft engines]]

|see also=
}}

==References==
{{reflist}}

==External links==
{{Commons}}
* [https://www.geaviation.com/marine/engines/military/lm6000-engine GE LM6000 website]

{{GE aeroengines}}
{{Aero-derivative engines}}
[[Category:Aero-derivative engines]]
[[Category:Marine engines]]
[[Category:Gas turbines]]