This means lighter, more thermodynamically efficient
Section(s), which provide sufficient air to burn to feed the turbine. Principal behind turbine engines is fundamentally that the turbine section(s)Īre able to extract sufficient energy from the exhaust to drive the compressor That the low pressure and high pressure sections rotate independently of one Sections, the fan and low pressure compressor and the high pressureĬomprised of a high and low pressure section, the high and low pressureĬompressors are linked to their respective turbine counterparts via concentric The compressor section is generally comprised of two Typical turbofan or turbojet engines are comprised of 5Ĭompressor/fan, combustor, turbine and nozzle.Īir is drawn through the inlet, pulled through the fan and compressor to increase its pressure, mixed with fuel and burned in the combustor, exhausted through the turbine and accelerated through the nozzle to produce thrust.įor this discussion, the compressor and turbine are the
Let’s jump in! How Do Turbine Engines Operate? Later in the article we’ll cover practicalĪpplications of N1 and N2 readings. In order to better understand N1 and N2, we need to start Pressure spool which indicates if aircraft systems have sufficient power. Spool and serves as the primary power setting, and N2 is the speed of the high
Rotational speed of turbine engines as a percentage of the maximum normal operating So, what do N1 and N2 for turbine engines mean? These terms express power in a fundamentally different way and require understanding the mechanical concepts behind turbine engines. But for turbine engines, power is expressed in terms of “N1” and “N2.”īecause turbofan engines generate thrust rather than power (as it is traditionally expressed), turbofan engine power settings are expressed relative to rotation speed limits. Most pilots are roughly familiar with the power setting principals of piston engines, and even of the power setting principals of piston engines driving constant speed propellers.
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