Consider a gas-turbine cycle with two stages of compression and two stages of expansion. The pressure ratio across each compressor stage and each turbine stage is 8:1. The -pressure at the en trance to the first compressor is 100 kPa, the temperature entering each compressor is 20 o C, and the temperature entering each turbine is 1100 o C. A regenerator is also ,incorporated into the cycle and it has an efficiency of 70%. Determine the compressor work, the turbine work, -and the ther .mal efficiency of the cycle

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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.