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Unformatted text preview: âˆ« CV-1 dv= P 1 V 1 ln(V2/V1)<polytrophic>. Isothermal: RTln(P1/P2) Flow Stuff: Contol Volume: dm= rho*Vel*dA c V avg = âˆ« v n dA c /A c m=rho*V=v/ v in steady state, incompressible flow dX/dt=0 (x is an property) Total energy e=u+ke+pe (simple compressible system) Flowing fluid: e= h+ke+pe System Types: Cycles: CHAPTER Calculating isentropic work: W s = m c p (T 2s-T 1 ) +( v 2 2-v 1 2 )/2 (dh+ke) Find T 2s from isentropic equation/ Find T 2 from ideal gas law/charts Chart method: Find where s is the same for compressor or turbine Change both pressure and temp Power plant Heat or temperature Pump increases pressure of a liquid...
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- Spring '09
- Thermodynamics, 0 W, 8.31447 KJ, Expansion= System