ap+m supplies parts and services for many types of GE™ aero-derivative gas turbines. Below are some of the more commonly used engine types.
GE LM2500
The GE™ LM2500 is the workhorse of aero-derivative gas turbines, with more than 1,500 units in service and over 22 million operating hours with various fuels and fuel/water combinations. Availability for the GE™ LM2500 is an outstanding 99.6%, requiring just 40 hours of significant maintenance for each 10,000 operating hours. It is rated up to 33,600 shaft horsepower with a thermal efficiency of 37% and is rated to produce 20-25 megawatts of electricity. The GE™ LM2500, derived from GE’s TF39/CF6-6 high bypass aircraft engine, is a single-spool gas generator with a 16-stage compressor, annular combustor, two-stage high-pressure turbine, and an aerodynamically coupled power turbine. The GE™ LM2500 has applications ranging from gas line compression, cogeneration, and offshore platform power to naval and cruise ship propulsion.
GE LM2500+
The LM2500+ is a high performance variant of the GE™ LM2500, featuring an additional stage zero blisk and variable guide vane, higher flow, improved efficiency compressor, technically advanced materials and coatings in the high pressure turbine, and a redesigned power turbine. These enhancements enable it to be rated up to 28.6 megawatts, 40,500 shaft horsepower at a thermal efficiency of 39%. Its applications span cogeneration, combined cycle, marine, and fast ferry, making it a versatile choice for various industries.
GE LM5000
The GE™ LM5000, derived from the CF6-50 high bypass aircraft engine, is a two-rotor gas generator with an aerodynamically driven, three-stage power turbine. The low-pressure system consists of a five-stage compressor and single-stage turbine, while the high-pressure system has a 14-stage compressor and two-stage turbine powered by an annular combustor. With steam injection, simple cycle efficiency is 38%, and power output is 52 megawatts at 55,000 shaft horsepower. There are approximately 70 GE™ LM5000s in service worldwide. Applications include combined cycle, cogeneration, and offshore oil platform power.
GE LM6000
The GE™ LM6000 is a derivative of the CF6-80C2 high bypass aircraft engine, and with a thermal efficiency of over 40%, it stands as the most fuel-efficient simple cycle gas turbine in its class. Its unique design features a two-rotor gas turbine with a five-stage low-pressure compressor, 14 14-stage high-pressure compressor, an annular combustor, a two-stage high-pressure turbine, and a five-stage low-pressure turbine.
Unlike the GE™ LM2500 and GE™ LM5000, the power turbine of the LM6000 is mechanically coupled to the low-pressure compressor, enabling it to drive both the load and the low-pressure compressor. This design allows the LM6000 to be used in both hot and cold end drive applications. With a shaft horsepower of 54,610 and the introduction of Spray Inter-cooling (SPRINT) and Enhanced Sprint (E-Sprint), power output can be augmented up to 47.5 megawatts or more. The GE™ LM6000 finds applications in power generation, cogeneration, fast ferry, and high-speed cargo ship propulsion.
