Ratio of isentropic work to Euler work in centrifugal compressor

Discussion

• Pankaj   -Posted on 15 Oct 15
  The actual work required by the compressor is always more than the theoretical work, because of the friction losses as well as turbulence losses.
  
  An empirically determined factor Ψ_w which is called as work factor is used to determine actual work. The actual work is obtained by multiplying the work factor by theoretical work. The value of work factor Ψ_w varies between 1.03 to 1.06
  
  Therefore,
  Actual work done, W = Ψ_s x Ψ_w x (C_bo)²
  
  And the ratio of isentropic work to Euler work of compression is defined as pressure coefficient
  
  Therefore,
  
  Ψ_p = (Isentropic work) / (Euler work)
  

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