A single stage double acting air compressor of 150 KW power takes air in at 1 bar and delivers at 6 bar. The compression follows the law PV1.35 = C. the compressor runs at 160 rpm with average piston speed of 150 m/min. If the diameter of the cylinder is 57 cm. and volumetric efficiency of 100%, determine (1) the polytropic compressor work in kW, (2) the isothermal compressor work in kW, and (3) the compressor indicated power in kW if the mean effective pressure is 3.5 bar. Draw the PV Plane. %3D

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.