University:
Duke University
Course:
PHYSICS 137S | Energy in the 21st Century and Beyond
Academic year:

2023
Views:

221

Pages:

2
Author:

Pemuda H

Gas Generator Ideal Cycle w/ Air Standard, Const. Properties (6.4.1) If you assume the kinetic energy leaving the engine is small, the hsh50 h40 nozzle is fixed Whet = h30-h40-(h2o-Ohio) We-We Whet 9in CP(130-140-720+Tio) Cp(T30-T20) 150-710 =>=1-730-720 Lo variation of kinetic energy is small plug into y (TS/T,-1) TI 21- (13/12-1) 2 => y=1-2 don't confuse w/ Carnot Cycle Can also say Maximum Work for fixed T, and T3 (6.5.1.1) Wnet Cp (T3-T5-T2+T₁) =CP (T3+T₁-12-17) Wnet 2T2 CP (-1+2)=0 Maximum temperature > T2 = NT3 TI Plug into Whet Whet max Cp (T3+T, 2 NTT3) T Ti T5 T₂ at Whet max Y = => = Look at Ex. later Gas Generator Ideal Cycle w/ Air Standard, Variable Properties (6.5.2) Case 1: Find h when s and p are given. S-S=CpIn-RIN fictitious state. S=s,+RinP Find si hi=hi Case 2: Find s when h and p are given high, s 5, s, Rinp Case 3: Find p when s and h are known h, hiss, -s, Rinp = = 5,-5 - pe R Put linear interpolation into the calculator Turbojet Real Cycle w/ Air Standard, Variable Properties (6.6.1)

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