respostas fundamentos de transferência de calor e de massa Incropera

respostas fundamentos de transferência de calor e de massa Incropera

(Parte 1 de 2)

Fundamentos de Transferência de Calor e Massa (6.ª Edição)

F.P. Incropera D.P. DeWitt T.L. Bergman A.S. Lavine

CAPÍTULO 1

1.1 14,5 W/m2; 58 W 1.2 2667 W 1.3 4312 W; $4,14/d 1.4 0,10 W/(m K) 1.5 8400 W 1.6 19.600 W; 120 W 1.7 54 m 1.8 16,6 W/m2; 35,9 W 1.9 375 m 1.10 110,40°C; 110,24°C 1.1 1,1°C 1.12 (a) 9800 W/m2 1.13 (a) 1400 W/m2; (b) 18.0 W/m2 1.14 (a) 2,0 W/(m2 K); (b) 2,12; 0,6 1.15 4570 W/(m2 K); 65 W/(m2 K) 1.16 51,8°C; 3203°C 1.17 6,3 m/s 1.18 0,35 W; 5,25 W 1.19 2,94 W 1.21 15 mW 1.2 6,3 W/(m2 K) 1.23 102,5°C 1.25 254,7 K 1.27 0,42; 264 W 1.28 (a) 18.405 W; (b) $6450 1.30 3,5% 1.31 (a) 0,223 W; (b) 3,4 W 1.32 (a) 8,1 W; (b) 0,23 kg/h 1.3 100°C 1.34 (a) 0; 144 W; 144 W; 0; 0; 144 W; 144 W; 0; (b) 2,04 105 W/m3; (c) 39,0 W/(m2 K) 1.35 (a) 0,052°C/s; (b) 48,4°C 1.36 375 W; 1,8 10 4 W; 0,065 W 1.37 6380 kWh; $510 ou $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; (b) 5,97 W 1.40 840 kW 1.41 (a) 32,5 kW/m2; 126 kW/m2; 17,6 K/s; 68,6 K/s 1.43 (a) 104 K/s; (b) 1251 K

CD-40 Respostas dos Problemas do Final de Cada Capítulo

1.46 (a) 1950 A 1.47 132 J/(kg K) 1.48 (a) 0,084 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 1.5 (a) 86,7°C; (b) 47°C 1.56 (a) 0,044 K/s; (b) 230 W; 230 W 1.57 (a) 26°C; (b) 4,0 10 5 /s 1.58 (b) 80°C 1.59 12,2 W/(m2 K); 12,2 W/(m2 °C) 1.60 (a) 600 K 1.61 375 W/(m2 K) 1.62 (a) 50 W/m2; (b) 87,8°C 1.63 (a) 5268 W; (b) 41°C 1.65 345°C 1.6 (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) 5% 1.71 (a) 47,0°C ou 39,9°C

CAPÍTULO 2

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 2.1 0, 60 K/m 2.12 100°C; 18,75 W; 40°C; 16,25 W 2.14 1010 W; $1050; 151 W; $157; 10,1 W; $10 2.15 (a) 85 W 2.16 14,5 (Btu/(h ft2 °F)) 1; 18 (Btu/(h ft2 °F)) 1; 18 (Btu/(h ft2 °F)) 1 2.17 (a) 15,0 W/(m K); 400 K; (b) 70,0 W/(m K); 380 K 2.18 (b) 5,9 10 3 W/(m K); (c) 0,74 10 3 °C; (d) 25,02°C 2.19 765 J/(kg K); 36,0 W/(m K) 2.2 (a) 0; 0,98 105 W/m; (b) 56,8 K/s 2.23 (a) 2 105 W/m3; (b) 0; 10000 W/m2 2.24 (a) 200 W/m2; 182 W/m2; 18 W/m2; (b) 4,3 W/(m2 K) 2.25 (b) 2 105 W/m3; (c) 2950 W/m2; 5050 W/m2; (d) 51 W/(m2 K); 101 W/(m2 K); (f) 2 105

Respostas dos Problemas do Final de Cada Capítulo CD-41

CAPÍTULO 3

3.2 (a) 7,7°C; 4,9°C 3.3 (a) 1270 W/m2 3.4 (b) 2830 W/m2 3.5 14,1 W/m2 3.6 (a) 996 W/(m2 K); 0,40%; (b) 14,5 W/(m2 K); 37,9% 3.7 (a) 0,553; (b) 2,1°C; 10,8°C; (c) 56,3°C 3.8 (a) 29,4 W 3.9 1,53 W/(m K) 3.10 (a) 17 m; (b) 20,7 m; (c) 40,3 kW; 550 W 3.1 (b) 86 m 3.12 0,79 W/(m K); 43,6 W/(m K) 3.13 (b) 4,21 kW; (c) 0,6% 3.14 1,30 108 J 3.15 0,185 K/W 3.16 2,13 3.17 (b) 64 m; 8, 307 kW; 40% 3.18 (a) 0,0875 m; 0,963 m; 0,0008 m; 0,015 m; (b) 573,5 K; 313,1 K; 53,5 K; 313,1 K; (c) 135 W; 3,75 W; 108,4 W; 10,2 W 3.19 (b) 327°C 3.20 (a) 34.600 W/m2 3.21 3,70 104 W/m2; 5,6°C 3.2 (a) 762 W 3.24 590 W 3.25 (a) 1,97 106 K/W 3.27 (b) 49°C; (c) 67.200 W/m2 3.28 (a) 0,268 W 3.29 (b) 5,76 kW 3.30 (b) 189 W 3.34 (a) 48,3 106 K/W; (b) 62,3°C 3.35 (a) 603 W/m 3.36 0,784 m; 0,784 m; 0,025 m 3.37 2380 W/m 3.39 (a) 12,6 W/m; (b) 7,7 W/m 3.40 (a) 214 m; 420 W/m 3.41 (a) 251 W/m; (b) 23,5°C 3.42 (a) 4 W/m; 1,27 106 W/m3; (b) 58°C; (c) 37,6°C; 34,8°C 3.43 4,5 W/m; 13 m 3.4 (b) 239°C 3.45 (a) 47,1 W/m; (c) 3,25 h 3.47 (a) 779°C; (b) 1153°C; 779°C; (c) 0,0175 m; 318°C 3.48 (a) 3727 W/m; 163 W/m; (b) 0,26 ano

CD-42 Respostas dos Problemas do Final de Cada Capítulo

3.49 1830 W/m 3.51 5 m 3.52 (b) 1040 W/m; 407 K; 325 K 3.53 (a) 0,01 m; (b) 770 W/m; 909 W/m; (c) 5 m 3.54 8670 W 3.5 (a) 9,8% 3.57 0,062 W/(m K) 3.59 5,34 m 3.60 (a) 489 W; (b) 120°C 3.61 13,5 m; 91% 3.62 601 K 3.63 181 W/(m2 K) 3.64 (b) 35,5 mW; 4,9 mW 3.65 (b) 3000 W/m2 3.67 (a) 1,69 m 3.68 7,9°C 3.69 0,157 W 3.72 212°C 3.73 (a) 4,0 106 W/m3; 15,3 W/(m K); (c) 835°C; 360°C 3.74 (a) 50,2°C 3.76 (a) 180°C; (c) 50°C; (d) 180°C 3.78 (a) 530°C; 380°C; (b) 328°C; 290°C 3.79 (b) 60°C; 65°C; (c) 200 W/m2; (d) 55°C 3.86 29 A; 3,0 m; 3,2 kW 3.8 (b) 1458 K 3.89 (a) 6410 A; (b) 15.240 W; (c) 10.990 W/m; 1.350 W/m; 4250 W/m; 3890 W/m 3.90 804 s 3.91 (a) 938 K; 931 K; (b) 3 108 W/m3 3.92 (a) 71,8°C; 51,0°C; (b) 192°C 3.95 (a) 36,6°C; (b) 129,4°C; (c) 337,7°C 3.96 (a) 5,26°C; 5,14°C 3.9 63,7°C; 160 W/m 3.102 (c) 17,2 W; 23,6 W 3.103 (b) 164,3°C; 145,1°C 3.105 (b) 347°C 3.107 (b) 160°C 3.109 510 nm 3.113 (a) 305°C; (b) 272°C 3.115 (c) 62,4°C 3.116 (b) 508 W 3.117 (c) 0,3; 607°C 3.119 (a) 420%; (b) 29% 3.120 156,5°C; 128,9°C; 107,0°C 3.121 (a) Caso A: 151 W/m; 0,96; 20,1; 0,50 m K/W; 95,6°C

Caso B: 144 W/m; 0,92; 19,3; 0,52 m K/W; 96,0°C Caso D: 450 W/m; 0; 60,0; 0,17 m K/W; 25°C

Respostas dos Problemas do Final de Cada Capítulo CD-43

3.122 (a) Caso A: 151 W/m; 0,96; 20,1; 0,50 m K/W; 95,6°C

Caso B: 144 W/m; 0,92; 19,2; 0,52 m K/W; 96,0°C Caso D: 450 W/m; 0; 60,0; 0,167 m K/W; 25°C 3.123 Aleta retangular: 130 W/m; 0,98; 4,5 10 5 m2

Aleta triangular: 117 W/m; 0,98; 2,3 10 5 m2 Aleta parabólica: 116 W/m; 0,96; 1,5 10 5 m2 3.124 121 W 3.125 (a) 0,37 W; (b) 1,04 105 W 3.126 5,2 nm; 0,2 nm 3.127 17,5 W/(m K) 3.128 (a) 1,31 W; (b) 1,34 W 3.129 56,6 W/(m K) 3.130 (b) 5995 W; 4278 W 3.131 (a) 2,4 10 3 K/W 3.132 (a) 31,8 W 3.133 1,30 10 3 W; 8,64 10 3 W 3.134 (b) 50,9 W 3.136 (a) 276 W 3.138 37,0 W 3.140 (b) 2830 W/m 3.141 1315% 3.142 93,7°C 3.143 (a) 0,9; 6,0; (b) 110,8 W/m 3.144 (a) 12,8 W; (b) 2,91 kW/m 3.145 (a) 0,97; 1,1; (b) 6,82 kW/m 3.146 394 K; 383 K; 381 K 403 K; 392 K; 382 K; 381 K 3.147 39.300 W/m; 405 K; 393 K; 384 K; 382 K 3.148 (a) 1,40 W 3.149 4025 W/m 3.152 3,3 10 5 /s

CAPÍTULO 4

4.2 94,5°C 4.3 5,6 kW/m 4.7 (c) 2,70; 3,70; 0,19°C; 0,14°C 4.9 92,7°C 4.10 84 W/m 4.1 9,9 W/m 4.12 94,9°C 4.13 110 W/m 4.14 6,72L; 612 W/m 4.15 12 W/m 4.16 12,5 W/m; 1,3 W/m 4.17 5,30 kW 4.18 72,1°C; 78,1°C; 70,0°C 4.19 (a) 10,3 W; (b) 0,21 m

CD-4 Respostas dos Problemas do Final de Cada Capítulo

4.20 316 kW 4.21 (a) 1,62 kW/m; (b) 93°C 4.2 (a) 0,1°C 4.23 3,62 kW; 254°C; 251°C 4.24 (a) 4,46 W; 98,2°C; 3,26 W; 78,4°C; (b) 4,09 W; 92,1°C; 3,05 W; 75,1°C 4.25 (a) 1,2°C 4.26 694 W 4.27 (a) 57°C; (b) 138 W 4.28 156,3 W; 81,3°C 4.29 (a) 745 W/m; (b) 3,54 kg/s 4.30 (a) 74,6 kW/m; (b) 2,38 108 W/m3; 315°C 4.31 0,70 W 4.43 6710 W/m 4.4 (a) 422 K; 363 K; 43 K; (b) 156 W/m 4.45 (a) 362,4 K; 390,2 K; 369,0 K; (b) 7500 W/m 4.46 (a) 122,0°C; 94,5°C; 95,8°C; 79,7°C; (b) 1117 W/m; (c) 1383 W/m 4.47 (a) T1 46,6°C; T2 45,7°C; T3 45,4°C; T4 49,2°C; T5 48,5°C; T6 48,0°C;

T7 47,9°C; 10.340 W/m 4.48 (a) T1 160,7°C; T2 95,6°C; T3 48,7°C; (b) 743 W/m 4.49 (a) 1473 W/m; (b) T3 89,2°C 4.50 (a) 205,0 W/m; (b) 156,3 W/m 4.51 (a) 118,8°C; 156,3°C; 168,8°C; 206,3°C; 162,5°C; (b) 117,4°C; 156,1°C; 168,9°C; 207,6°C; 162,5°C 4.52 (a) 272,2°C; 952 W/m; (b) 271,0°C; 834 W/m 4.53 (a) 348,6 K; 368,9 K; 374,6 K; 362,4 K; 390,2 K; 398,0 K; (b) 1,53 108 W/m3 4.54 3,0 kW/m 4.5 (a) 1,57 kW/m; (b) 1,52 kW/m 4.56 456 W/m 4.58 1487 W/m 4.59 (a) 7,72 kW/m; (b) 7,61 kW/m 4.60 94,0°C 4.61 1477 W/m 4.62 (a) 100 W/m; 1 4.64 (a) 1010 W/m; 100°C; 1; (b) 805 W/m; 100°C 4.65 (b) 128 W/m 4.6 (b) 1,48 108 W/m3 4.67 (b) 1135 W/m; (c) 1365 W/m 4.69 (a) 2939 W/m2 4.70 (b) 1205 W/m 4.71 1,604 W 4.73 (c) 25,0 W/m 4.75 (a) 2,38 10 3 m K/W; (b) 3,64 10 3 m K/W 4.7 (a) 878 W/m; 5,69 10 2 m K/W; 220 W 4.78 (a) 131 W/m; (b) 129 W/m 4.79 (a) 1683 W/m 4.80 (a) 52,6 kW/m2 4.82 (b) 2,43 107 W/m3; (c) 47,5°C; 0,45

Respostas dos Problemas do Final de Cada Capítulo CD-45

4S.1 2,83; 7,34 kW/m 4S.2 4,26 ; 245 W/m 4S.3 (a) 50°C; (b) 0,53 ; 3975 W/m; (d) 1,70 ; 12.750 W/m 4S.4 2,34 4S.5 2,58 ; 1.600 W/m; 1,5 ; 6975 W/m 4S.6 (a) 7,8 kW/m; (b) 0,24 m 4S.7 4 ; 45,6 kW/m; 3,5 ; 39,9 kW/m 4S.8 3500 W/m; 4500 W/m

CAPÍTULO 5

5.5 12 s 5.7 35,3 W/(m2 K) 5.8 7,04 h 5.9 168 s 5.10 859 s 5.1 968 s; 456°C 5.12 984 s; 272,5°C 5.13 0,0041 m2 K/W 5.14 (a) 84,1°C; 83,0°C 5.15 21,8 m 5.16 1,08 h; 1220 K 5.17 (a) 209 s; 105 m; (b) 1,03 m/s; 1,69 m/s 5.18 8,7°C; 8,31 s 5.19 (b) 825 s; 122°C 5.20 (b) 63,8°C 5.21 3,54 m 5.2 (d) 1,04 h; 0,826 h; 0,4 h 5.23 2,52 m; 0,022 J 5.24 (a) 1190 s; 199 s; (b) 24,1 s; (c) 21,0 s 5.25 (a) 1 ms 5.26 1,56 10 4 s; 2,28 10 5 s 5.27 80°C; 38,3 s 5.28 45,7°C; 13,0 s 5.29 (a) 25,8 s; 9,5 s; 616 s; 18,9 s; 43,8 s; 2840 s; 40 s; (b) 29,5 s; 1,0 s; 708 s 5.30 (a) 98,1°C; (b) 1,67 h 5.31 (a) 90 W; (b) 0,71 s; 1,71 s; (c) 400 106 bits; 6,84 s 5.32 (a) 86 ms; (b) 147 ms 5.3 (a) 1,3 min; (b) 5,9 min 5.35 960 s 5.36 (a) 56,3 min 5.37 861 s 5.38 (a) 45,4°C; 43,1°C; 7305 W/m2; 2,72 107 J/m; (b) 4,4 min 5.39 (a) 3.800 s 5.40 491 s 5.41 (a) 164 s; 367 s 5.42 (a) 10,9 s 5.43 (a) 63 s; (b) 2,36 104°C/m

CD-46 Respostas dos Problemas do Final de Cada Capítulo

5.4 (a) 10 s 5.45 0,613 W/(m K); 2,73 106 J/(m3 K) 5.46 (a) 45,3 min; (b) 2,21 107 J/m2 5.47 63,8 s; 51,8°C 5.48 (a) 486 K 5.49 (a) 145 s 5.50 (a) 194 s 5.51 596 K 5.52 254°C 5.53 17 min; 149 kW 5.54 579 s 5.5 (a) 0,30 W/(m K) 5.57 3,4 s 5.58 140 s; 36 m/s 5.59 (a) 42 s; 114°C; (b) 40 kW 5.60 (b) 72 s; (c) 7125 W/m2; (d) 3364 J; (e) 428 K 5.61 (b) 2,8 h; 107 s; (c) 3,48 106 J; 3405 J 5.62 (a) 98,6 s; (b) 100°C 5.63 1020 s; 257,3°C 5.64 (a) 100 s 5.65 (a) 94,2 s; 0,0025; (b) 3,0 s 5.68 4,9 105 J/m2 5.69 1793 s 5.71 (a) 2,81 min; (b) 56 kJ 5.73 53,5°C 5.74 (a) 0,34 m; 2,36 m 5.75 1,41 W/(m K) 5.76 0,45 W/(m K) 5.7 (a) 276°C; 315°C 5.78 (a) 310 s 5.81 365,9 K 5.82 (b) 0,43 s 5.84 51,4 kN 5.85 (a) 870 W; (b) 28,2 anos 5.86 21,8 ns 5.87 10,6 s 5.8 (a) 31,8°C; 58°C; (b) 34,2°C; 65,9°C 5.89 4,13 anos 5.90 (a) 32°C; 22°C; (b) 34,3 W/m2; 22°C; 27°C; (c) 27,4°C; 26,6°C 5.91 3,1 m 5.96 (b) 230°C 5.100 24,1°C; 71,5°C 5.105 161 s; 1364°C; 2,42 m 5.106 275°C; 312°C 5.107 502,3 K; 300,1 K 5.108 (a) 119,3°C; 45,1°C 5.109 (a) 66°C; 32°C 5.113 (a) 230 s

Respostas dos Problemas do Final de Cada Capítulo CD-47

5.114 (a) 14,3 s 5.115 (b) 550 s 5.116 (a) 136 s; (b) 73 s 5.118 (b) 158°C 5.120 (a) 54,8°C; (b) 54,7°C 5.123 (b) 806 K; 1,17 s 5.124 (a) 402,7 K; (b) 368,7 K; (c) 362,5 K 5.128 (a) 54 dias; (b) 13 dias

5S.1 1170 s; 410°C; 537°C 5S.2 96 W/(m2 K) 5S.3 0,0073 m/s 5S.4 7,6 min 5S.5 (a) 3607 s; (b) 51°C 5S.6 199°C 5S.7 (a) 12 s; (b) 1,0°C; (c) 3,4 J 5S.8 (a) 5,1 s; 68,3°C 5S.9 1,83 h 5S.10 434 K; 320 K 5S.1 (a) 260°C 5S.12 2,75 h 5S.13 561 K; 604 K 5S.14 (a) 402,7 K; 370,5 K; 362,4 K

CAPÍTULO 6

6.2 705 W/(m2 K); 171,4°C/m; 17.060°C/m 6.3 9200 W/m2 6.4 2,0 6.5 1,3 6.7 10,9 W/(m2 K); 1,0 6.8 42,5 W/(m2 K) 6.10 67,35 W/(m2 K) 6.13 600 W/m2; 18,9 W 6.14 (a) 20,9 m/s 6.15 (a) 31,4 m; (b) 0,157 m 6.16 7,95 m; 275 m; 0,056 m; 10,5 m; 20,9 m; 0,049 m 6.17 (b) 29,9 10 6 m2/s; 5,98 10 6 m2/s; 2,9 10 6 m2/s; (c) 5,23 m; 1,05 m; 0,523 m 6.18 40 W/(m2 K) 6.19 2066 W 6.20 (a) 34,3 W/(m2 K); (b) 59,0 W/(m2 K) 6.21 1,1 6.23 2,0 6.24 6,69 6.26 42,5°C 6.27 (a) 47,2°C; (b) 13,2 m/s 6.29 8,6 6.31 281; 284; 180; 465 W s0,85/(m2,7 K)

CD-48 Respostas dos Problemas do Final de Cada Capítulo

6.32 38,3 W/(m2 K) 6.3 16,6 m; 250 K 6.34 240 W 6.35 2,6 kW 6.36 26,0 N/m2 6.37 0,785 N 6.38 4260 W/m2 6.39 14,3 W 6.40 1,5 10 3 m/s 6.41 (a) 0,0179 m/s; (b) 0,75 10 5 kg/s; (c) 5,31 10 5 kg/s 6.42 2,76 10 5 kg/(s m2); 1,37 10 3 m/s 6.43 10 6 kg/(s m2) 6.45 0,025 m/s 6.46 385; 6,29 10; 0,62; 0,0073; 1613; 6,29 104; 2,56; 0,0187; 1,06 107; 1577; 6,74 105; 76,9 6.47 (a) 120 W/(m2 K); (d) 0,51 m/s 6.48 (a) 4,64 10 4 kg/s; (b) 1247 W 6.49 (a) 0,975 10 3 kmol/m3; 0,0258 atm; (b) 9,28 10 4 kg/(s m2) 6.50 (a) 1,63 10 4 kg/s; (b) 282,2 K 6.51 1,50 10 3 kg 6.52 359 W/(m2 K) 6.53 (a) 25,8 m/s; (b) 25,2 W/(m2 K); 80,8 W/(m2 K); 162 W/(m2 K) 6.54 (a) 0,031; 0,80; (b) 198 W/(m2 K); (c) 74% 6.5 2 10 3 kg/(s m2) 6.56 0,00395 m/s 6.57 (b) 9,92 W 6.58 7,78 km 6.59 (a) 7,25 10 6 kg/s; (b) 2,4 W; 2791 W/m2 6.60 (a) +795 W/m2; +131 W/m2; 563,1 W/m2; (c) 1227 W/m2 6.61 784 W 6.62 (a) 0,70 kg/h; (b) 85,6°C 6.63 21,8 W 6.64 2950 W 6.65 (a) 4,7°C; (b) 0,0238 m/s; (c) 16,2°C 6.6 (a) 0,0142 bar; 0,214; (b) 0,225; (c) 0,242 6.67 0,218 6.68 (a) 2,7 W/(m2 K); 454 W; (b) 2,12 10 2 m/s; 3,32 kg/h; (c) 2685 W 6.69 (a) 0,172 m/s; 65,3 s; (b) 173 W/(m2 K); 7.500 W/m2; (c) 429°C 6.70 (a) 6,71 10 3 m/s; (b) 8,97 W/(m2 K) 6.71 (a) 0,0113 m/s; (b) 90 J 6.72 (b) 0,32 K/s

6S.2 40,83°C 6S.3 (b) 1510 W/m; 453 kg/(s2 m) 6S.4 (a) 34,2 N/m2; 0,738 N/m2; 6840 W/m2; 148 W/m2; (b) 1,37 106 W/m3; 2,95 104 W/m3; (c) 34,0°C; 30,5°C 6S.5 (a) 0,0028; 0,0056; 13,4; (b) 3,38 6S.7 (b) 117°C

Respostas dos Problemas do Final de Cada Capítulo CD-49

6S.8 (a) 6,6 107 W/m3; (b) 1460 W; (c) 81,2°C; 303°C 6S.14 (e) 6,71 10 4 kg/s

CAPÍTULO 7

7.1 (a) 3,9 m; 4,48 m; 0,93 m; 0,52 m; 23,5 m; 1,27 m; 0,34 m; 1,17 m 7.2 (a) 0,147 m; 0,0143 m; (b) 1300 W/m2; 0,0842 N/m2; (c) 0,337 N/m; 5200 W/m 7.3 (a) 0,126 m; 0,399 m; 1,262 m; 141 m; (b) 6,07 N/m2; 1,92 N/m2; 0,61 N/m2; 0,528 m/s; 0,167 m/s; 0,053 m/s 7.8 (a) 8,71 105 W/m3; (b) 158,4°C 7.9 (a) 51,1 W; 12,2 W; 8,3 W; 255,3 W 7.10 13.600 W/m; 9780 W/m; 5530 W/m 7.1 (a) 0,257 N; 8,13 W/(m2 K); 1950 W; 0,227 N; 7,16 W/(m2 K); 3440 W; (b) 0,620 N; 9050

W/(m2 K); 5430 W; 0,700 N; 12.600 W/(m2 K); 15.100 W 7.12 (c) 4110 W/(m2 K); 4490 W/(m2 K); 5070 W/(m2 K) 7.13 3,2 105; 1,5 106 7.15 (a) 17,6 W; (b) 143,6 W 7.16 (a) 5830 W/m 7.17 29°C 7.18 (a) 13,5 W; 47,6°C; (b) 13,9 W; 41,0°C 7.19 (a) 14,3 W; 125,9°C 7.20 (a) 3,8°C; 797 W; (b) 675 W; (c) 90,6 kW 7.21 1570 W 7.2 (a) 8,7 W/(m2 K); 14,5 W/(m2 K); 1,1 W/(m2 K) 7.23 (b) 4% 7.24 6780 W; 0,26°C/s 7.25 (b) 213°C 7.26 (b) 256°C; (c) 210°C 7.27 0,9 K/s; 1,47 K/s; 1,91 m 7.28 (b) 0,47; (c) 0,47 7.29 46,2°C 7.30 2,73 m/s 7.31 (a) 23,4 W; 28,2°C; (b) 271 W; 72,6°C; 105 W; 200°C 7.32 (a) 27°C; (b) 77°C 7.3 (a) 64°C; (c) 6,6 m/s 7.34 42,5°C 7.35 (a) 98,3°C; 17,1 W/(m2 K); (b) 86,1°C 7.36 (a) ; 2,61 W/(m2 K); ; 2,74 W/(m2 K); (b) 4,2 W/(m2 K); 5,41 W/(m2 K) 7.37 (a) 5 W; (b) 39 W 7.38 0,30 W; 0,81 W 7.39 0,6 W; 0,60 W 7.40 (a) 30,8 W/(m2 K); 56,7 W/(m2 K); (b) 0,633; 0,5 7.41 (a) 71,1 W/m; 20,4 kW/m; 1640 W/m 7.42 3,24 N/m; 520 W/m 7.43 (a) 603 K; (b) 200 s 7.4 (a) 562 K; (b) 155 s 7.45 70,4 W 7.46 (a) 2,20 W; (b) 37,4 m; (c) 89,6; (d) 435%

CD-50 Respostas dos Problemas do Final de Cada Capítulo

7.47 (a) 235 W/(m2 K); (b) 0,87 W; (c) 1,02 W 7.48 (a) 1012°C; 1014°C 7.49 (b) 97 m/s 7.50 (b) 195 mA 7.52 (a) 27,6°C; (b) 27,6°C 7.53 (a) 45,8°C; (b) 68,3°C 7.54 (a) 0,924 W 7.5 (a) 1,41 W 7.56 (a) $0,415/m d; (b) $0,363/(m d) 7.57 (a) 3640 W/m 7.58 452,2 K 7.59 (b) 18,7 m 7.61 (a) 0,20 m/s; (b) 2,80 104 W/m2; 52% 7.62 (a) 12,8 s 7.63 (b) 340°C; (c) 309°C 7.65 3,26 m/s 7.6 (a) 0,011 N; (b) 3,14 W 7.67 (a) 0,489 N; 510 W; (b) 0,452 10 3 N; 1,59 W 7.68 10,3 W 7.69 (a) 67 s; (b) 48 s 7.70 (a) 18,8°C; (b) 672°C 7.71 (a) 2 m/s; (b) 1,1 m; 1,25 10 3 m3 7.72 (a) 737°C; (b) 274 s; (c) 760°C; 230 s 7.73 2,1 m/s; 1,6 m 7.74 1,1 m/s; 10,3 m 7.75 (a) 0,01 s; 166,7 m/s; (b) 7,8 10 4 s 7.76 180 m 7.7 (a) 0,3 m/s; (b) 1,86 m 7.78 (a) 6,83 s; (b) 936 K 7.79 (b) 337°C 7.80 726 K; 735 K 7.81 (a) 92,2 W; (b) 1,76 108 W/m3; 1422 K; (c) 1789 K 7.82 (a) 20,4; (b) 45,8°C 7.83 234 W/(m2 K); 0,0149 bar; 28,4 kW/m 7.84 58,5 kW; 5,9 10 3 bar 7.85 16.684 N/m2 7.86 532 kW/m 7.87 (a) 7670 W; 47,6°C; (b) 195 N/m2; 56 W 7.8 (a) 39°C; (b) 0,00993 bar; 6,26 kW 7.89 (a) 435 W/(m2 K); (b) 321 K; 2453 W 7.91 (a) 363 K; (b) 355 kW; 0,163 kg/s 7.92 1,68 W 7.93 1,45 K/s 7.94 (c) 0,179 kg/s 7.96 1.600 W; 140 W 7.97 (a) 3,56 s; 17 m 7.98 (a) 470,5 W/(m2 K); (b) 40,1 s 7.9 5044 s

Respostas dos Problemas do Final de Cada Capítulo CD-51

7.100 65,7 kW 7.101 (a) 941°C; 3 W; (b) 1314°C 7.102 (a) 10,5°C; 0,0134 kg/s 7.103 (a) 41,2°C; 0,0154 kg/s 7.104 (a) 0,0728 m/s; (b) 0,0028 kg/s 7.105 (a) 9,29 10 4 kg/(s m); 2265 W/m 7.106 5,93 kW 7.107 (a) 0,0135 kg/(s m) 7.108 3,57 W 7.109 (a) 4,48 10 3 kg/(s m2); (b) 1.800 W/m2; (c) 9,95 10 4 kg/(s m) 7.110 (a) 9,5 10 4 kg/s; 9,5 10 4 kg/s; 9,3 10 4 kg/s; (b) 334,7 K; 332,8 K; 327,1 K 7.112 (a) 0,123 kg/h; 4,9 W; (b) 52,3°C 7.113 (b) 2,12 10 4 kg/(s m2) 7.114 28,6 min 7.115 337 W/m; 483 W/m; 589 W/m 7.116 (b) 5,35 10 4 kg/(s m); (c) 1,275 kW/m 7.117 2,73 106 kg/dia 7.118 2775 W; 0,13°C/s 7.119 0,0016 kg/(s m2) 7.120 (a) 4,81 10 4 kg/(s m2); 1268 W/m2 7.121 (a) 20,3 kg/h; (b) 102 dias 7.122 (a) 4,76 10 2 m/s; (b) 3,80 10 2 m/s 7.123 (a) 2,31 10 4 kg/(s m) 7.124 (a) 0,30 kg/(h m); 110 W/m; (b) 52,3°C 7.126 (a) 485 W; (b) 3135 W 7.128 (a) 9424 W/m; 0,0036 kg/(s m) 7.129 45,6°C; 0,21 7.130 (b) 1,82 10 7 kg/s; 8,9 K/s 7.131 159 s 7.132 3,60 10 8 kg/s 7.133 278 K 7.134 (a) 0,080 m/s; (b) 50 ms; (c) 1,01 10 10 kg/s 7.135 35 diâmetros do corpo/s 7.136 9,06 10 8 kg/s 7.137 (a) 1,12 10 8 kg/s; (b) 2,3 K 7.138 (a) 1,83; (b) 28,0°C; 0,00129 7.139 0,0016 kg/(s m2)

CAPÍTULO 8

8.1 0,041 m/s; 0,86 10 5 bar/m 8.2 0,0215 bar 8.3 (a) 0,289 bar; 1,42 kW; (b) 0,402 bar; 1,97 kW 8.4 (a) 53,8 bar; 146 W 8.7 367 K 8.8 0,50 m/s; 20,0°C 8.9 0,84 MPa; 0,46 MW; 0,46°C 8.10 (c) 0,46°C

CD-52 Respostas dos Problemas do Final de Cada Capítulo

8.1 (b) 4,2°C 8.15 (b) 60,8°C 8.16 (a) 471 W; 113,5°C; 60°C; 153,5°C; (b) 353 W; 90,2°C; 20°C; 150,2°C 8.17 (b) 362 K 8.18 8 8.21 (c) 6018 W 8.2 (a) 35°C; 16.0 W 8.23 (a) 28,4°C; 4,9°C; 73,3°C; 64,5°C;73,3°C; 65,1°C 8.24 90 kg/h; 1360 W 8.25 26,8 m 8.26 1281 W; 15,4 m 8.27 12.680 W/m2; 121°C; 52,7°C 8.28 (b) 1266 s 8.29 5; 2,54°C/s 8.30 (a) 1,56 m; 28,3 dias 8.31 13,7 m; 0,078 W 8.32 (a) 10,6 m 8.3 $0,411/(m d) 8.34 (a) 8,87 m; (b) 52,6°C 8.35 (a) 81,7°C; (b) 9,1 10 4 bars; 0,19 W 8.36 (a) 63°C; (b) 6,1°C 8.37 (a) 29,9°C; 1212 W; 4,03 N/m2 8.38 99°C; 5 atm; 1,14 10 3 kg/s 8.39 0,1 m 8.40 0,39 m 8.41 7840 W/m2; 7040 W/m2 8.42 (a) 323 K; (b) 325 K 8.43 (a) 578°C 8.4 (a) 1384 K; (b) 5,2 10 2 kg/s; 890 K 8.45 (a) 198°C; 71 N/m2; 221 W; (b) 195°C; 119 N/m2; 415 W 8.46 (a) 85,6°C; 661 W 8.47 (a) 42,2°C; 7500 W; 1,29 h; (b) 0,324 h 8.49 (a) 100 kW; (b) 2,67 kW 8.50 343 W/m 8.51 80,3 W/m 8.52 (a) 543°C; 232°C 8.53 81,4°C 8.54 (a) 37,1°C; (b) 47,4°C 8.5 (a) 98,5 m; (b) 10,6 m 8.56 (a) 35,1°C; (b) 95,8°C; (c) 96,9°C 8.57 489 W/m 8.58 (a) 10 kW; (b) 3,4 m 8.60 (a) 409 W/(m2 K); (b) 93,4 W/(m2 K); (c) 76,1 W/(m2 K); 15°C 8.61 9,3 m 8.62 15,7°C; 438 W 8.63 (b) 111°C; 9,1 106 W 8.65 (a) 35°C; (b) 5,6; (d) 732 W/(m2 K); (e) 6,7 W; (f) 0,81 m 8.6 (b) 244 W/m; 187°C

(Parte 1 de 2)

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