Page 27 - Pipeline Rules of Thumb Handbook

14 Pipeline Rules of Thumb Handbook

This plot of water volume versus glycol volume at various represent 2, 20, 2,000, etc. Proceed along the 45° line from
conditions of temperature and percent of glycol in the system Point A to Point B at the intersection with the 16°F line.
makes winterizing field engines relatively easy. Then, move from Point B to Point C and read 160 on the
water volume axis. This is the amount of water the system
Example. Determine the amount of glycol to be used in should contain. Move from Point B to Point D on the glycol
a 200 gallon system for protection to 16°F. axis and read 40. This is the amount of glycol that must be
To use the chart, first find the total system capacity, 200 added to the system.
gallons, at Point A on the water volume axis. Point A also can

How to determine glycol requirements to bring a system to a desired temperature protection level

Solve the equation below to find the number of gallons of 1,200 gallon system to give protection to -10°F. Glycol in the
aqueous solution that must be removed and replaced with system determined by Hydrometer test is 28 percent (0.28
glycol. fraction). The published figure for -10°F protection is 519
gallons of glycol in the 1,200 gallon system.
D
d =
B
Then: Gallons of glycol in system
where d = gallons of aqueous solution to be removed from = 1,200 ¥ 0.28 = 336 gallons
the system and replaced with equal number of
D = 519 - 336 = 183 gallons difference
gallons of glycol
and B = 1.0 - 0.28 = 0.72
D= total gallons of glycol required for protection at
desired temperature less gallons of glycol in 183
original system Thus: d = 072 = 254 gallons
.
B = 1.0 - fraction of glycol in system
Therefore 254 gallons of existing aqueous solution need to be
Example. Find the number of gallons of existing aqueous removed and replaced with 254 gallons of glycol for the
solution that must be removed and replaced with glycol in a desired protection to -10°F.

Weight in pounds of round steel shafting

Diameter LENGTH IN FEET Weight
of Shaft, Per
Inches 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 22 24 Inch

15 . . . . . 2 5 7 9 12 14 16 19 21 23 28 33 37 42 47 51 56 .195
/ 16
3
1 / 16 . . . . 4 8 11 15 19 23 26 30 34 38 45 53 60 68 76 83 91 .314
7
1 / 16 . . . . 6 11 17 22 28 33 39 44 50 55 66 77 88 99 110 121 133 .460
11
1 / 16 . . . . 8 15 23 30 38 46 53 61 68 76 91 107 122 137 152 167 183 .634
15
1 / 16 . . . . 10 20 30 40 50 60 70 80 90 100 120 140 161 181 201 221 241 .835
3
2 / 16 . . . . 13 26 38 51 64 77 90 102 115 128 153 179 205 230 256 281 307 1.06
7
2 / 16 . . . . 16 32 48 63 79 95 111 127 143 159 190 222 254 286 317 349 381 1.32
11
2 / 16 . . . . 19 39 58 77 97 116 135 154 174 193 232 270 309 348 386 425 463 1.61
15
2 / 16 . . . . 23 46 69 92 115 138 161 184 208 231 277 323 369 415 461 507 553 1.92
3
3 / 16 . . . . 27 54 81 109 136 163 190 217 244 272 326 380 435 489 543 598 652 2.26
7
3 / 16 . . . . 32 63 95 126 158 189 221 253 284 316 379 442 505 568 631 695 758 2.63
11
3 / 16 . . . . 36 73 109 146 182 218 255 291 328 364 437 510 582 655 728 801 874 3.03
15
3 / 16 . . . . 41 83 124 166 207 248 290 331 373 414 497 580 662 745 828 911 994 3.45
7
4 / 16 . . . . 53 105 158 210 263 315 368 421 473 526 631 736 841 946 1052 1157 1262 4.38
15
4 / 16 . . . . 65 130 195 260 326 391 456 521 586 651 781 911 1041 1172 1302 1432 1562 5.43
5 . . . . . . 67 134 200 267 334 401 467 534 601 668 801 935 1068 1202 1335 1469 1602 5.56
7
5 / 16 . . . . 79 158 237 316 395 474 553 632 711 790 947 1105 1263 1421 1579 1737 1894 6.58
1
5 / 2 . . . . . 81 162 242 323 404 485 565 646 727 808 969 1131 1292 1454 1615 1777 1938 6.73
15
5 / 16 . . . . 94 188 282 377 471 565 659 753 847 941 1130 1318 1506 1695 1883 2071 2259 7.85
6 . . . . . . 96 192 288 385 481 577 673 769 865 961 1154 1346 1538 1731 1923 2115 2307 8.01
1
6 / 2 . . . . . 113 226 338 451 564 677 790 903 1015 1128 1354 1579 1805 2031 2256 2482 2708 9.40
7 . . . . . . 131 262 393 524 654 785 916 1047 1178 1309 1570 1832 2094 2355 2677 2878 3140 10.90
1
7 / 2 . . . . . 150 300 451 601 751 901 1051 1202 1352 1502 1803 2103 2403 2704 3004 3305 3605 12.52
8 . . . . . . 171 342 513 684 855 1024 1196 1367 1538 1709 2051 2303 2734 3076 3418 3760 4102 14.24