Show that the ratio of the back work (the work necessary to run the compressor) to the
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Show that the ratio of the back work (the work necessary to run the compressor) to the total work done by the turbine for the ideal Brayton cycle is W{12}/W{34} = T1/T4. Check your result by comparing to the result stated in the text for the conditions shown in Figure 13.19
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1400 1200 turbine 1000 combustor Q(23). 800 Q(41)• compressor 600 heat exchanger or exhaust/intake 400 200 Si = S2 S3 = S4 %3D entropy 10 T = 300 K T = 523 K T = 803 K T = 1400 K W{34} 마 W(12) V3 Vi volume (b) V2 VA pressure [atm] temperature [K] 4. 6.
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