Microgas Turbine
Gas turbines can be classified by power class into heavy, medium, small and micro gas turbines. Heavy-duty gas turbine installed capacity is generally greater than 100 MW, is by far the most efficient thermal power conversion class power generation equipment, is the core equipment in the field of power generation and drive, and is also the main power used on medium-sized conventional aircraft carriers. The installed capacity of micro gas turbines is generally less than 1MW. Micro-gas turbine power generation is the most mature and commercially competitive distributed power generation equipment at present, which has set off the technical innovation upsurge of "small power supply decentralization" and become the mainstream trend of energy technology in the 21st century.A Microturbine (MT) has a similar cycle and components as a heavy-duty gas turbine, with a power to weight ratio that is superior to a heavy-duty gas turbine because a reduction in turbine diameter results in an increase in shaft speed. Heavy-duty gas turbine generators are too large and expensive for distributed power applications, so MT is being developed for small-scale power, such as stand-alone generation or cogeneration (CCHP) systems. Micro gas turbines, about the size of a refrigerator with an output of 25 kW to 500 kW, have evolved from car and truck turbochargers, aircraft auxiliary power units (APUs) and small jet engines. Most micro gas turbines consist of a compressor, burner, turbine, alternator, heat exchanger and generator.