Low Pressure Compressor (Lpc)

The low-pressure compressor (LPC) is a key part of a twin-spool jet engine. It serves as the first stage of air compression for the engine. A jet engine is made up of four main sections: the intake, compressor, combustion, and exhaust. As exhaust air flows over the turbines, it helps spin the engine shaft. The compressor blades at the front of the shaft compress the incoming air to the right pressure before it moves into the combustion section. Here, the compressed air mixes with fuel and ignites. The hot exhaust air then exits the engine, creating propulsion as it leaves at a much higher pressure than when it entered. This process is based on Newton’s principle that states, “for every action, there is an equal and opposite reaction.” The twin-spool design enhances the efficiency of the basic jet engine setup. In this design, two sets of compressors and turbines rotate around a shaft within another shaft. The low-pressure compressor takes in air and performs initial compression. This air then passes into the high-pressure compressor for further compression. When the air is mixed with fuel and ignited, it first flows over the high-pressure turbine. This turbine extracts energy from the hot gases to power the high-pressure compressor. Likewise, the low-pressure turbine uses exhaust air to spin the low-pressure compressor. This cycle continues until the fuel or air supply is cut off.