Microturbines – future power generation
ABSTRACT:
A new small gas turbine technology is being developed which promises to bring the economic, environmental and convenience benefits, advancements in the automotive sector, generation of electricity and mechanical power needs of the commercial sector. The technology is of the microturbines.
The microturbine is an example of Micro Electro Mechanical Systems, which is efficiently used to develop power at a small scale. Microturbines are small combustion turbines approximately the size of a refrigerator with outputs of 25 kW to 500 kW. Microturbines are part of the future of onsite, or distributed energy and power generation. They are actually single shaft machines, in which turbine, compressor and generator are mounted on the single shaft.
This unit can be used for distributed power, stand-alone power, stand-by power and vehicle application like turbocharger. The commercial customer requirement for small prime movers are that they be very cleans (low NOx, CO and unburned hydrocarbons), of better efficiency than the reciprocating engines, require infrequent maintenance, have a very low forced outage rate and of course be of low installed cost so as to provide rapid payback for the owner. These conditions are better fulfilled by the microturbines compared to the conventional Reciprocating Engines, Gas turbines, Coal fired steam engines etc.
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