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ANS-6<br />

Answers to Selected Even-Numbered Homework Problems<br />

11.74 1.35 m<br />

11.76 at duct entrance T 130 K; p 6.0 kPa 1abs2;<br />

T 0 293 K; p 0 101 kPa 1abs2; V 571 ms;<br />

just upstream of shock T 296 K; p 17<br />

kPa 1abs2; T 0 396 K; p 0 47.7 kPa 1abs2;<br />

V 448 ms; just downstream of shock<br />

T 354 K; p 30.8 kPa 1abs2; T 0 396 K;<br />

p 0 46.4 kPa 1abs2; V 299 ms; at duct exit<br />

T 351 K; p 26.6 kPa 1abs2; T 0 407 K;<br />

p 0 45.9 kPa 1abs2; V 337 m s<br />

Chapter 12<br />

12.4 pump<br />

12.8 BG, 1ft lb2slug; hp; SI, 1N m2kg or Jkg; Js<br />

or watt 1W2; EE, 1ft lb2lbm; hp<br />

12.10 10.8 lbft 2 ; turbine<br />

12.16 turbine and pump<br />

12.18 379 1ft lb2lbm<br />

<br />

12.20 1b2 891 ft lb; 0 rpm<br />

12.22 1.84 hp<br />

12.24 11.5 m<br />

12.28 increase to 8.43 ft<br />

12.30 1a2 2.07 kW; 1b2 12.6 m<br />

12.34 365 gpm<br />

12.36 255 gpm; no<br />

12.38 1a2 0.0529 m 3 s;<br />

1b2 13%<br />

12.42 0.0328 m 3 s; 8 m<br />

12.44 Yes<br />

12.46 1000 gpm; 800 ft<br />

12.48 671 at maximum efficiency<br />

12.54 mixed-flow<br />

12.56 6.4 hp; 163 ft 2 s 2<br />

12.62 0.0109 ft 3 s; 0.150 ft lb; 0.0409 hp<br />

12.66 23,200 kW<br />

12.68 41,000 hp<br />

12.70 Francis; 378 ft 3 s

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