respostas incropera

respostas incropera

(Parte 1 de 17)

1.1 378C

1.3 4312 W, $4.14/d

1.4 0.10 W/mK

1.5 8400W

1.6 19,600 W, 120 W

1.7 54 mm

1.8 16.6 W/m2, 35.9 W

1.9 375 mm

1.10 110.40C, 110.25C

1.11 1.1C

1.12 (a) 9800 W/m2

1.13 (a) 1400 W/m2; (b) 18,000 W/m2

1.14 (a) 22.0 W/m2K; (b) 22.12, 0.6

1.15 4570 W/m2K, 65 W/m2K

1.16 51.8C, 3200C

1.17 6.3 m/s

1.18 0.35 W, 5.25 W

1.19 2.94 W

1.21 15 mW

1.22 6.4 W/m2K

1.23 102.5C

1.25 254.7 K

1.27 726 W, 547 W

1.28 (a) 18,400 W; (b) $6450

1.30 3.5%

1.31 (a) 0.223 W; (b) 3.44 W

1.32 (a) 8.1 W; (b) 0.23 kg/h

1.33 100C

1.34 (a) 0, 144 W, 144 W, 0; 0, 0, 144 W, -144 W; (b) 2.04 105 W/m3; (c) 39.0 W/m2K

1.35 (a) 0.052C/s; (b) 48.4C

1.36 364 K, 380 K

1.37 6380 kWh, $510 or $170

1.38 (a) 4180 s; (b) 319 K, 359 K; (c) 830 K

1.39 (a) 0.0181 m3/s, 4.7 m/s

1.40 840 kW

1.41 (a) 32.5 kW/m2, 126 kW/m2, 17.6 K/s, 68.4 K/s

1.43 (a) 104 K/s; (b) 1251 K

1.46 (a) 1950 A

1.47 132 J/kgK

1.48 (a) –0.089 K/s; (b) 439 K

1.49 (a) 1.41 10-3 kg/s

1.50 3.2 h

1.51 (a) 60.6 10-3 kg/sm2, 121 g/m2; (b) 32.3 10-3 kg/sm2

1.53 49C

1.54 (a) 7.13 10-3 m3/s; (b) 70C

1.55 (a) 86.7C; (b) 47C

1.56 (a) 79.1 K; (b) 457 mW

1.59 37.9C

1.60 (a) 600 K

1.61 375 W/m2K

1.62 (a) 5500 W/m2; (b) 87.8C

1.63 (a) 5268 W; (b) 41C

1.65 345C

1.66 (a) 84C

1.67 214 K, 20.0 mW

1.68 (a) 190.6 W

1.69 (a) 153C

1.70 (a) 386 W/m2; (b) 27.7C; (c) 55%

1.71 (a) 47.0C or 39.9C

CHAPTER 2

2.7 (a) 200 K/m, -5000 W/m2; (b) 225C, 6250 W/m2; (c) -20C, -5000 W/m2; (d) -85C, -160

K/m; (e) -30C, 120 K/m

2.8 (a) –280 K/m, 14.0 kW/m2; (b) 80 K/m, -4.0 kW/m2; (c) 110C, -8.0 kW/m2; (d) 60C, 4.0

kW/m2; (e) -20C, -10.0 kW/m2

2.9 (a) 2000 K/m, -200 kW/m2; (b) –2000 K/m, 200 kW/m2; (c) 2000 K/m, -200 kW/m2

2.11 0, 60 K/m

2.12 100C, 18.75 W; -40C, 16.25 W

2.14 (a) 197 W; (b) 87 W; (c) 8.0 W; (d) 7.3 W; (e) 0.093 W; (f) 0.026 W; (g) 0.69 W

2.15 (a) 593 kW/m2; (b) 151 kW/m2; (c) 33.5 kW/m2; (d) 9.95 kW/m2; (e) 0.88 kW/m2; (f) 3.5

kW/m2

(Parte 1 de 17)

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