Introduction

Introduction

  • Compressor is a device used for pumping compressible fluids i.e, air, gas & steam
  • According to API, a pressure rise above 0.35 bar is compressor, and below is blower
  • Classification based on operating principle
  • Positive displacement (Increase pressure by reducing volume)
  • Dynamic or turbo (By imparting kinetic energy to air/gas and then converting it into pressure: \( \Delta \)P ∞ \( \rho \) u2)
  • Flow rate: m3/hr , cfm (cubic foot per minute)
  • Pressure ratio: ratio of absolute discharge pressure /absolute inlet pressure