Page 70 - Applied Process Design For Chemical And Petrochemical Plants Volume III

66131_Ludwig_CH10B 5/30/2001 4:17 PM Page 49

Heat Transfer 49

Table 10-10A Table 10-10C
3
3
Full Circle Tube Layouts Floating Head Exchanger / 4 -in. Full Circle Tube Layouts Floating Head Exchanger / 4 -in.
15
O.D. Tubes on / 16 -in. Triangular Pitch O.D. Tubes on 1-in. Triangular Pitch
Net Free Net Free
Number of Passes Number of Passes
Size Distance Rows Size Distance Rows
(In.) 1 2 4 6 8 2 Passes Across (In.) 1 2 4 6 8 2 Passes Across
8 42 40 32 32 24 3.75 13 8 37 30 26 26 24 4.13 11
10 73 68 56 54 52 4.63 17 10 61 56 52 46 44 4.88 17
12 109 106 88 86 80 4.00 21 12 92 90 86 78 72 4.38 21
14 130 124 110 108 104 4.50 25 14 121 110 102 98 92 5.50 21
16 187 176 162 152 144 5.00 29 16 163 152 146 140 132 6.25 25
18 241 232 214 216 204 5.88 33 18 212 202 194 188 184 5.88 29
20 308 302 282 274 264 6.50 37 20 269 260 250 240 236 6.63 35
22 384 372 352 348 336 7.13 41 22 337 330 314 300 296 7.33 39
24 472 458 432 420 406 7.75 45 24 421 404 380 378 364 8.00 43
26 555 538 510 510 502 8.63 48 26 499 476 460 450 440 8.88 47
28 649 636 610 606 580 8.13 53 28 579 562 542 538 520 9.63 51
30 764 744 716 708 700 8.75 57 30 668 648 636 624 612 10.33 53
32 868 850 822 812 796 9.38 63 32 766 744 732 714 712 11.00 57
34 994 970 930 928 912 9.75 65 34 870 850 834 828 808 10.50 61
36 1131 1108 1066 1058 1028 10.50 71 36 986 978 942 932 920 11.38 67
38 1268 1246 1204 1190 1172 11.25 75 38 1108 1100 1060 1060 1036 12.13 71
40 1414 1390 1360 1338 1316 12.06 79 40 1236 1228 1200 1190 1164 12.75 75
42 1558 1544 1502 1482 1464 11.50 83 42 1367 1350 1322 1306 1288 13.25 77

Table 10-10D
Table 10-10B Full Circle Tube Layouts Floating Head Exchanger, 1-in.
3
Full Circle Tube Layouts Floating Head Exchanger / 4 -in. O.D. Tubes on 1 / 4 -in. Square Pitch
1
O.D. Tubes on 1-in. Square Pitch
Net Free
Number of Passes
Net Free Size Distance Rows
Number of Passes
Size Distance Rows (In.) 1 2 4 6 8 2 Passes Across
(In.) 1 2 4 6 8 2 Passes Across
8 21 16 16 . . . . . . . . 4.13 5
8 32 32 26 24 24 3.50 6 10 37 32 32 32 . . . . 4.25 6
10 56 52 48 48 48 4.13 8 12 48 52 48 48 48 4.25 8
12 82 82 78 72 72 4.50 11 14 61 60 60 52 52 5.50 10
14 104 96 92 88 88 6.00 11 16 89 84 80 76 76 5.50 11
16 140 136 128 120 120 6.50 14 18 113 112 112 108 108 5.38 13
18 185 180 172 168 164 6.88 16 20 148 148 140 136 136 5.38 14
20 241 236 224 212 212 7.38 17 22 184 178 172 168 164 7.38 16
22 300 280 280 268 268 7.75 20 24 221 220 212 208 208 7.38 17
24 360 350 336 332 332 8.25 21 26 266 266 258 252 252 7.38 19
26 424 412 402 392 392 8.75 23 28 316 308 304 292 292 7.38 20
28 402 488 480 472 472 9.25 25 30 368 360 352 344 340 9.38 21
30 580 566 566 548 548 9.75 27 32 421 410 402 392 392 9.38 23
32 665 648 644 628 628 10.00 29 34 481 472 464 452 452 9.69 24
34 756 758 730 728 728 10.19 31 36 545 540 532 524 524 9.69 26
36 853 848 832 816 816 11.69 33 38 608 608 588 588 588 9.69 28
38 973 950 938 932 932 12.19 35 40 680 680 656 664 660 9.69 29
40 1085 1064 1052 1036 1036 12.69 37 42 750 738 728 728 728 11.69 31
42 1201 1176 1162 1148 1148 13.19 39
Table 10-10E follows.