Compressors and Energy Balance in Industrial Systems
Dive into the world of compressors through a detailed exploration of volumetric, dynamic, and power aspects. Learn about compressible fluid pump power relations, energy balance, and Mollier diagrams to enhance your understanding of industrial systems.
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Presentation Transcript
Lecture 8.1. Compressors held at 16/3 2021
Volumetric, piston, 2 stages Note different cylinder sizes
Dynamic compressors Industrial, 8 stage radial Jet engine, centrifugal and axial stages
Power: Compressors pump compressible fluid Pump power relation: dw=Qdp Isentropic (adiabatic) gas approximation: By integration = k k pQ pQ 1 1 1 k p p p k 2 k = = 2 1 w Qdp p Q 1 1 i 1 k 1 p 1
Power: Energy balance = + pdQ Qdp + dw mc dT Energy balance: v + H = E pV Enthalpy: i dw dH Combined ( ) , H p S 2 degrees of freedom, e.g.:
( ) Mollier diagram: , H p S
