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HomeworkAnswers2

HomeworkAnswers2 - (a 1.692(b 321.3 K SP17(a 31°C(b 107.5...

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ME 200 – Thermodynamics I Spring 2011 Answers to Assigned Homework Problems Lectures 12 through 22 3.85 47 min 3.87 49.3°C SP12 (a) 327.04 kJ; (b) 334.44 kJ; (c) 334.32 kJ 3.91 (a) 0.79; (b) 0.791 3.100 (a) 6.685 kg; (b) 6.973 kg; ideal gas model deviates by 4% 3.104 366.9 kPa SP13 (a) 1861 kPa; (b) 1620 kPa or 1628 kPa; (c) 1600 kPa 3.119 +1857 kJ, heat transfer to helium 3.124 (a) 417.4 K; (b) 2.39 bar; (c) V air = 1 m 3 , V CO = 2.07 m 3 SP14 (a) 2.09 bar; (b) 718 J; (c) 4308 J 4.6 1200 lbm 4.14 (a) 5.43 lb/s; (b) 0.0211 lb/s; (c) 0.0686 lb/s SP15 (a) 12 m 3 /s; (b) 54.15 kg/s; (c) 14.2 kg/s; (d) 5.73 m/s 4.24 (a) 0.621 kg/s; (b) 52.23 m/s; (c) +6.82 kW, heat transfer to the pipe 4.27 (a) inlet: 55.38 m/s, outlet: 251.73 m/s; (b) 0.04 kg/s SP16 (a) 200°C; (b) 19.8 cm 4.31 (a) 664.1 m/s; (b) 17 cm 2 , 6.2 cm 2 4.38
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Unformatted text preview: (a) 1.692; (b) 321.3 K SP17 (a) 31°C; (b) 107.5 m/s 4.51 (a) 1.91 × 10 6 lbm/hr; (b) 6.93 ft 4.53 26.6 kW 4.67 16 kg/s SP18 (a) 852°C; (b) -29.74 kJ/kg, heat transfer from turbine to surroundings 4.74 9.1 × 10 6 kg/hr 4.77 (a) 7.96 kg/min; (b) 8.1 kJ/min 4.92 40.3 F, 15.8% SP19 (b) 489°C 4.100 (a) 0.49 kg/s; (b) 1.68 kg/s 4.102 (a) 24.1%; (b) 2086 kg/s SP20 (a) 63 kW; (b) -11.69 kW 5.3 (a) Possible; (b) Possible; (c) Impossible; (d) Indeterminate; (e) Possible; (f) Impossible; (g) Indeterminate 5.8 (a) Not attached; (b) Not attached SP21 (d) 2.986 x 10 7 Btu/h 5.17 (a) Irreversibly; (b) Reversibly; (c) Impossible; (d) Impossible 5.20 (a) 75%; (b) 1610 kJ, 610 kJ; (c) 790 F; (d) 327 C 5.34 (a) 5.57 x 10 8 Btu/h; (b) 2.18 x 10 8 Btu/h SP22 (a) 1393 BTU/min; (b) 1011°F...
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