flare radiation

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Expansión de la Refinería LA TEJA. ANCAP TIP SIZING: Inputs: Mach = 0.50 ...Mach number at Top. W = 502570.18 lb/hr ...Flow Rate. 227962.00 kg/hr M = 63.00 ...Avg. Molecular Weight of Vapors. P = 14.70 Psia ...Pressure at Flare Tip (absolute). 1.01 bar T = 225.00 °F ...Temperature. 107.22 °C k = 1.300 ...Ratio cp/cv. Outputs: d = 22.01 in ...Flaretip Inside Diameter. 558.98 mm evel. = 419.20 ft/seg ...Tip exit velocity. 127.77 m/seg API RP 521 HEIGHT CALCULATION: Inputs: W = 502570.18 lb/hr ...Flow Rate. 227962.00 kg/hr M = 63.00 ...Avg. Molecular Weight of Vapors. T = 225 °F ...Temperature. 107.22 °C LHV = 19116.00 Btu/Lb ...Heat of Combustion 10620.00 Kcal/kg Hr = 9.61E+09 Btu/hr ...Heat Release 2.42E+09 Kcal/hr d = 22.01 in ...Flaretip Inside Diameter. 558.98 mm H = 269.7 ft ...Stack Height 82.20 m Wsp = 25.335 ft/seg ...Wind Speed 7.72 m/seg Tau = 1.00 ...Fraction of Heat Intensity Transmited F = 0.30 ...Fraction of Heat Radiated (0.15-0.30). SO = 250 Btu//hr/ft2 ...Solar Radiation 678.11 Kcal/hr/m2 Outputs: 38.4 m Qmax = 2006.64 Btu//hr/ft2 ...Max. Heat Intensity & Occurs at: 126.00 ft from stack Lfl = 317.9 ft ...Flame Length, by Graph. 96.89 m 317.876 ft ...Flame Length, by correlation API 96.89 m Vapor 255592.83 lb/hr ...Vapor Injected, (Smokeless burning) 115935.0 kg/hr NOISE LEVEL ESTIMATION: Inputs: PR = 3 ...Ratio of upstream to downstream pressure across S.V.(abs). r = 197 ft ...Distance from sound source (Stack Tip). 60.05 m Outputs: Lp = 110.3 Db ...Noise Level at distance r, decibels. R (mts) R' (mts) D (mts) H' (mts) K Allow 45.00 6.29 103.24 103.05 1999.21 2249.21 K Allow H' (mts) D (mts) R' (mts) R (mts) INPUT K allow-> 2000.00 103.05 103.22 5.95 44.66 0 100 200 300 400 500 600 700 800 0.00 500.00 1000.00 1500.00 2000.00 2500.00 Heat Intensity Plot Heat Intensity (Btu/hr/sqft)

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Page 1: Flare Radiation

Expansión de la Refinería LA TEJA. ANCAP

TIP SIZING:Inputs:

Mach = 0.50 ...Mach number at Top.

W = 502570.18 lb/hr ...Flow Rate. 227962.00 kg/hrM = 63.00 ...Avg. Molecular Weight of Vapors.P = 14.70 Psia ...Pressure at Flare Tip (absolute). 1.01 barT = 225.00 °F ...Temperature. 107.22 °Ck = 1.300 ...Ratio cp/cv.

Outputs:d = 22.01 in ...Flaretip Inside Diameter. 558.98 mm

evel. = 419.20 ft/seg ...Tip exit velocity. 127.77 m/seg

API RP 521 HEIGHT CALCULATION:Inputs:

W = 502570.18 lb/hr ...Flow Rate. 227962.00 kg/hrM = 63.00 ...Avg. Molecular Weight of Vapors.T = 225 °F ...Temperature. 107.22 °C

LHV = 19116.00 Btu/Lb ...Heat of Combustion 10620.00 Kcal/kgHr = 9.61E+09 Btu/hr ...Heat Release 2.42E+09 Kcal/hr

d = 22.01 in ...Flaretip Inside Diameter. 558.98 mm

H = 269.7 ft ...Stack Height 82.20 mWsp = 25.335 ft/seg ...Wind Speed 7.72 m/segTau = 1.00 ...Fraction of Heat Intensity Transmited

F = 0.30 ...Fraction of Heat Radiated (0.15-0.30).SO = 250 Btu//hr/ft2 ...Solar Radiation 678.11 Kcal/hr/m2

Outputs: 38.4 mQmax = 2006.64 Btu//hr/ft2 ...Max. Heat Intensity & Occurs at: 126.00 ft from stack

Lfl = 317.9 ft ...Flame Length, by Graph. 96.89 m317.876 ft ...Flame Length, by correlation API 96.89 m

Vapor 255592.83 lb/hr ...Vapor Injected, (Smokeless burning) 115935.0 kg/hr

NOISE LEVEL ESTIMATION:Inputs:

PR = 3 ...Ratio of upstream to downstream pressure across S.V.(abs).

r = 197 ft ...Distance from sound source (Stack Tip). 60.05 m

Outputs: Lp = 110.3 Db ...Noise Level at distance r, decibels.

R (mts) R' (mts) D (mts) H' (mts) K Allow

45.00 6.29 103.24 103.05 1999.21 2249.21K Allow H' (mts) D (mts) R' (mts) R (mts)

INPUT K allow-> 2000.00 103.05 103.22 5.95 44.66

0 100 200 300 400 500 600 700 800

0.00

500.00

1000.00

1500.00

2000.00

2500.00Heat Intensity Plot

Distance from Flare (ft)

He

at

Inte

nsi

ty (

Btu

/hr/

sqft

)

Page 2: Flare Radiation

0 100 200 300 400 500 600 700 800

0.00

500.00

1000.00

1500.00

2000.00

2500.00Heat Intensity Plot

Distance from Flare (ft)

He

at

Inte

nsi

ty (

Btu

/hr/

sqft

)

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Delta R= 2 ft

Distance Distance Distance Max. Heat Max. Heatfrom Stack from Flame from Flame Plus

(Horiz) Center (Horiz) Center (Obliq) Solar Rad.ft ft ft Btu//hr/ft2 Btu//hr/ft2R R' D K Allow K Allow+S.R.0 -127.00 361.14 1758.51 2008.512 -125.00 360.45 1765.33 2015.334 -123.00 359.76 1772.10 2022.106 -121.00 359.08 1778.81 2028.818 -119.00 358.41 1785.45 2035.4510 -117.00 357.75 1792.04 2042.0412 -115.00 357.10 1798.56 2048.5614 -113.00 356.46 1805.01 2055.0116 -111.00 355.83 1811.40 2061.4018 -109.00 355.21 1817.72 2067.7220 -107.00 354.60 1823.96 2073.9622 -105.00 354.01 1830.13 2080.1324 -103.00 353.42 1836.23 2086.2326 -101.00 352.84 1842.24 2092.2428 -99.00 352.27 1848.18 2098.1830 -96.9981 351.72 1854.04 2104.0432 -95.00 351.17 1859.81 2109.8134 -93.00 350.63 1865.50 2115.5036 -91.00 350.11 1871.10 2121.1038 -89.00 349.60 1876.61 2126.6140 -87.00 349.09 1882.03 2132.0342 -85.00 348.60 1887.36 2137.3644 -83.00 348.12 1892.59 2142.5946 -81.00 347.64 1897.73 2147.7348 -79.00 347.18 1902.77 2152.7750 -77.00 346.73 1907.70 2157.7052 -75.00 346.30 1912.54 2162.5454 -73.00 345.87 1917.27 2167.2756 -71.00 345.45 1921.90 2171.9058 -69.00 345.05 1926.42 2176.4260 -67.00 344.65 1930.83 2180.8362 -65.00 344.27 1935.13 2185.1364 -63.00 343.90 1939.32 2189.3266 -61.00 343.54 1943.40 2193.4068 -59.00 343.19 1947.36 2197.3670 -57.00 342.85 1951.20 2201.2072 -55.00 342.52 1954.92 2204.9274 -53.00 342.21 1958.53 2208.5376 -51.00 341.90 1962.01 2212.0178 -49.00 341.61 1965.38 2215.3880 -47.00 341.33 1968.62 2218.6282 -45.00 341.06 1971.73 2221.7384 -43.00 340.80 1974.72 2224.7286 -41.00 340.55 1977.58 2227.5888 -39.00 340.32 1980.31 2230.3190 -37.00 340.10 1982.91 2232.9192 -35.00 339.88 1985.38 2235.3894 -33.00 339.68 1987.72 2237.7296 -31.00 339.50 1989.93 2239.9398 -29.00 339.32 1992.00 2242.00100 -27.00 339.15 1993.94 2243.94102 -25.00 339.00 1995.75 2245.75104 -23.00 338.86 1997.42 2247.42106 -21.00 338.73 1998.95 2248.95108 -19.00 338.61 2000.34 2250.34

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110 -17.00 338.50 2001.60 2251.60112 -15.00 338.41 2002.72 2252.72114 -13.00 338.33 2003.70 2253.70116 -11.00 338.26 2004.54 2254.54118 -9.00 338.20 2005.24 2255.24120 -7.00 338.15 2005.80 2255.80122 -5.00 338.11 2006.22 2256.22124 -3.00 338.09 2006.50 2256.50126 -1.00 338.08 2006.64 2256.64128 1.00 338.08 2006.64 2256.64130 3.00 338.09 2006.50 2256.50132 5.00 338.11 2006.22 2256.22134 7.00 338.15 2005.80 2255.80136 9.00 338.20 2005.24 2255.24138 11.00 338.26 2004.54 2254.54140 13.00 338.33 2003.70 2253.70142 15.00 338.41 2002.72 2252.72144 17.00 338.50 2001.60 2251.60146 19.00 338.61 2000.34 2250.34148 21.00 338.73 1998.95 2248.95150 23.00 338.86 1997.41 2247.41152 25.00 339.00 1995.75 2245.75154 27.00 339.15 1993.94 2243.94156 29.00 339.32 1992.00 2242.00158 31.00 339.50 1989.93 2239.93160 33.00 339.68 1987.72 2237.72162 35.00 339.88 1985.38 2235.38164 37.00 340.10 1982.91 2232.91166 39.00 340.32 1980.30 2230.30168 41.00 340.55 1977.57 2227.57170 43.00 340.80 1974.71 2224.71172 45.00 341.06 1971.72 2221.72174 47.00 341.33 1968.61 2218.61176 49.00 341.61 1965.37 2215.37178 51.00 341.90 1962.01 2212.01180 53.00 342.21 1958.52 2208.52182 55.00 342.52 1954.92 2204.92184 57.00 342.85 1951.19 2201.19186 59.00 343.19 1947.35 2197.35188 61.00 343.54 1943.39 2193.39190 63.00 343.90 1939.31 2189.31192 65.00 344.27 1935.12 2185.12194 67.00 344.65 1930.82 2180.82196 69.00 345.05 1926.41 2176.41198 71.00 345.45 1921.89 2171.89200 73.00 345.87 1917.26 2167.26202 75.00 346.30 1912.53 2162.53204 77.00 346.74 1907.70 2157.70206 79.00 347.18 1902.76 2152.76208 81.00 347.65 1897.72 2147.72210 83.00 348.12 1892.58 2142.58212 85.00 348.60 1887.35 2137.35214 87.00 349.09 1882.02 2132.02216 89.00 349.60 1876.60 2126.60218 91.00 350.11 1871.09 2121.09220 93.00 350.64 1865.49 2115.49222 95.00 351.17 1859.80 2109.80224 97.00 351.72 1854.03 2104.03226 99.00 352.27 1848.17 2098.17228 101.00 352.84 1842.23 2092.23230 103.00 353.42 1836.22 2086.22

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232 105.00 354.01 1830.12 2080.12234 107.00 354.61 1823.95 2073.95236 109.00 355.21 1817.70 2067.70238 111.00 355.83 1811.39 2061.39240 113.00 356.46 1805.00 2055.00242 115.00 357.10 1798.55 2048.55244 117.00 357.75 1792.03 2042.03246 119.00 358.41 1785.44 2035.44248 121.00 359.08 1778.79 2028.79250 123.00 359.76 1772.09 2022.09252 125.00 360.45 1765.32 2015.32254 127.00 361.14 1758.50 2008.50256 129.00 361.85 1751.62 2001.62258 131.00 362.57 1744.69 1994.69260 133.00 363.30 1737.72 1987.72262 135.00 364.04 1730.69 1980.69264 137.00 364.78 1723.61 1973.61266 139.00 365.54 1716.49 1966.49268 141.00 366.30 1709.33 1959.33270 143.00 367.08 1702.12 1952.12272 145.00 367.86 1694.88 1944.88274 147.00 368.65 1687.59 1937.59276 149.00 369.46 1680.27 1930.27278 151.00 370.27 1672.92 1922.92280 153.00 371.09 1665.53 1915.53282 155.00 371.92 1658.12 1908.12284 157.00 372.75 1650.67 1900.67286 159.00 373.60 1643.20 1893.20288 161.00 374.46 1635.69 1885.69290 163.00 375.32 1628.17 1878.17292 165.00 376.19 1620.62 1870.62294 167.00 377.08 1613.05 1863.05296 169.00 377.97 1605.47 1855.47298 171.00 378.86 1597.86 1847.86300 173.00 379.77 1590.24 1840.24302 175.00 380.69 1582.60 1832.60304 177.00 381.61 1574.95 1824.95306 179.00 382.54 1567.29 1817.29308 181.00 383.48 1559.61 1809.61310 183.00 384.43 1551.93 1801.93312 185.00 385.39 1544.24 1794.24314 187.00 386.35 1536.54 1786.54316 189.00 387.32 1528.84 1778.84318 191.00 388.30 1521.13 1771.13320 193.00 389.29 1513.43 1763.43322 195.00 390.28 1505.72 1755.72324 197.00 391.29 1498.01 1748.01326 199.00 392.30 1490.30 1740.30328 201.00 393.32 1482.59 1732.59330 203.00 394.34 1474.89 1724.89332 205.00 395.38 1467.19 1717.19334 207.00 396.42 1459.49 1709.49336 209.00 397.46 1451.81 1701.81338 211.00 398.52 1444.13 1694.13340 213.00 399.58 1436.46 1686.46342 215.00 400.65 1428.80 1678.80344 217.00 401.73 1421.15 1671.15346 219.00 402.81 1413.51 1663.51348 221.00 403.90 1405.89 1655.89350 223.00 405.00 1398.28 1648.28352 225.00 406.11 1390.68 1640.68

Page 11: Flare Radiation

354 227.00 407.22 1383.10 1633.10356 229.00 408.34 1375.53 1625.53358 231.00 409.46 1367.98 1617.98360 233.00 410.59 1360.45 1610.45362 235.00 411.73 1352.94 1602.94364 237.00 412.88 1345.45 1595.45366 239.00 414.03 1337.98 1587.98368 241.00 415.18 1330.53 1580.53370 243.00 416.35 1323.10 1573.10372 245.00 417.52 1315.69 1565.69374 247.00 418.70 1308.30 1558.30376 249.00 419.88 1300.94 1550.94378 251.00 421.07 1293.60 1543.60380 253.00 422.26 1286.29 1536.29382 255.00 423.46 1279.00 1529.00384 257.00 424.67 1271.74 1521.74386 259.00 425.89 1264.50 1514.50388 261.00 427.10 1257.30 1507.30390 263.00 428.33 1250.11 1500.11392 265.00 429.56 1242.96 1492.96394 267.00 430.80 1235.83 1485.83396 269.00 432.04 1228.74 1478.74398 271.00 433.29 1221.67 1471.67400 273.00 434.54 1214.63 1464.63402 275.00 435.80 1207.62 1457.62404 277.00 437.07 1200.64 1450.64406 279.00 438.34 1193.69 1443.69408 281.00 439.61 1186.77 1436.77410 283.00 440.89 1179.89 1429.89412 285.00 442.18 1173.03 1423.03414 287.00 443.47 1166.21 1416.21416 289.00 444.77 1159.42 1409.42418 291.00 446.07 1152.66 1402.66420 293.00 447.38 1145.93 1395.93422 295.00 448.69 1139.24 1389.24424 297.00 450.01 1132.57 1382.57426 299.00 451.33 1125.95 1375.95428 301.00 452.66 1119.35 1369.35430 303.00 453.99 1112.79 1362.79432 305.00 455.33 1106.27 1356.27434 307.00 456.67 1099.77 1349.77436 309.00 458.02 1093.31 1343.31438 311.00 459.37 1086.89 1336.89440 313.00 460.72 1080.50 1330.50442 315.00 462.08 1074.14 1324.14444 317.00 463.45 1067.82 1317.82446 319.00 464.82 1061.53 1311.53448 321.00 466.20 1055.28 1305.28450 323.00 467.57 1049.07 1299.07452 325.00 468.96 1042.88 1292.88454 327.00 470.35 1036.74 1286.74456 329.00 471.74 1030.62 1280.62458 331.00 473.14 1024.55 1274.55460 333.00 474.54 1018.50 1268.50462 335.00 475.94 1012.50 1262.50464 337.00 477.35 1006.53 1256.53466 339.00 478.77 1000.59 1250.59468 341.00 480.19 994.69 1244.69470 343.00 481.61 988.82 1238.82472 345.00 483.03 982.99 1232.99474 347.00 484.47 977.19 1227.19

Page 12: Flare Radiation

476 349.00 485.90 971.43 1221.43478 351.00 487.34 965.70 1215.70480 353.00 488.78 960.01 1210.01482 355.00 490.23 954.36 1204.36484 357.00 491.68 948.74 1198.74486 359.00 493.13 943.15 1193.15488 361.00 494.59 937.60 1187.60490 363.00 496.05 932.08 1182.08492 365.00 497.52 926.60 1176.60494 367.00 498.99 921.15 1171.15496 369.00 500.46 915.73 1165.73498 371.00 501.93 910.35 1160.35500 373.00 503.41 905.01 1155.01502 375.00 504.90 899.70 1149.70504 377.00 506.39 894.42 1144.42506 379.00 507.88 889.18 1139.18508 381.00 509.37 883.97 1133.97510 383.00 510.87 878.79 1128.79512 385.00 512.37 873.65 1123.65514 387.00 513.87 868.54 1118.54516 389.00 515.38 863.47 1113.47518 391.00 516.89 858.43 1108.43520 393.00 518.41 853.42 1103.42522 395.00 519.93 848.44 1098.44524 397.00 521.45 843.50 1093.50526 399.00 522.97 838.59 1088.59528 401.00 524.50 833.71 1083.71530 403.00 526.03 828.87 1078.87532 405.00 527.56 824.06 1074.06534 407.00 529.10 819.28 1069.28536 409.00 530.64 814.53 1064.53538 411.00 532.18 809.81 1059.81540 413.00 533.73 805.13 1055.13542 415.00 535.28 800.47 1050.47544 417.00 536.83 795.85 1045.85546 419.00 538.39 791.26 1041.26548 421.00 539.94 786.70 1036.70550 423.00 541.50 782.17 1032.17552 425.00 543.07 777.67 1027.67554 427.00 544.63 773.21 1023.21556 429.00 546.20 768.77 1018.77558 431.00 547.78 764.36 1014.36560 433.00 549.35 759.98 1009.98562 435.00 550.93 755.64 1005.64564 437.00 552.51 751.32 1001.32566 439.00 554.09 747.03 997.03568 441.00 555.68 742.78 992.78570 443.00 557.27 738.55 988.55572 445.00 558.86 734.35 984.35574 447.00 560.45 730.18 980.18576 449.00 562.05 726.03 976.03578 451.00 563.65 721.92 971.92580 453.00 565.25 717.84 967.84582 455.00 566.85 713.78 963.78584 457.00 568.46 709.75 959.75586 459.00 570.07 705.75 955.75588 461.00 571.68 701.78 951.78590 463.00 573.29 697.83 947.83592 465.00 574.91 693.91 943.91594 467.00 576.53 690.02 940.02596 469.00 578.15 686.15 936.15

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598 471.00 579.77 682.32 932.32600 473.00 581.40 678.51 928.51602 475.00 583.03 674.72 924.72604 477.00 584.66 670.96 920.96606 479.00 586.29 667.23 917.23608 481.00 587.93 663.53 913.53610 483.00 589.57 659.84 909.84612 485.00 591.20 656.19 906.19614 487.00 592.85 652.56 902.56616 489.00 594.49 648.96 898.96618 491.00 596.14 645.38 895.38620 493.00 597.79 641.82 891.82622 495.00 599.44 638.29 888.29624 497.00 601.09 634.79 884.79626 499.00 602.74 631.31 881.31628 501.00 604.40 627.85 877.85630 503.00 606.06 624.42 874.42632 505.00 607.72 621.01 871.01634 507.00 609.38 617.63 867.63636 509.00 611.05 614.26 864.26638 511.00 612.71 610.93 860.93640 513.00 614.38 607.61 857.61642 515.00 616.05 604.32 854.32644 517.00 617.73 601.05 851.05646 519.00 619.40 597.81 847.81648 521.00 621.08 594.58 844.58650 523.00 622.76 591.38 841.38652 525.00 624.44 588.20 838.20654 527.00 626.12 585.04 835.04656 529.00 627.80 581.91 831.91658 531.00 629.49 578.80 828.80660 533.00 631.18 575.70 825.70662 535.00 632.87 572.63 822.63664 537.00 634.56 569.59 819.59666 539.00 636.25 566.56 816.56668 541.00 637.95 563.55 813.55670 543.00 639.65 560.56 810.56672 545.00 641.34 557.60 807.60674 547.00 643.05 554.65 804.65676 549.00 644.75 551.73 801.73678 551.00 646.45 548.82 798.82680 553.00 648.16 545.94 795.94682 555.00 649.86 543.08 793.08684 557.00 651.57 540.23 790.23686 559.00 653.28 537.41 787.41688 561.00 655.00 534.60 784.60690 563.00 656.71 531.81 781.81692 565.00 658.42 529.05 779.05694 567.00 660.14 526.30 776.30696 569.00 661.86 523.57 773.57698 571.00 663.58 520.86 770.86700 573.00 665.30 518.16 768.16702 575.00 667.03 515.49 765.49704 577.00 668.75 512.83 762.83706 579.00 670.48 510.20 760.20708 581.00 672.20 507.58 757.58710 583.00 673.93 504.98 754.98712 585.00 675.67 502.39 752.39714 587.00 677.40 499.83 749.83716 589.00 679.13 497.28 747.28718 591.00 680.87 494.74 744.74

Page 14: Flare Radiation

720 593.00 682.60 492.23 742.23722 595.00 684.34 489.73 739.73724 597.00 686.08 487.25 737.25726 599.00 687.82 484.79 734.79728 601.00 689.56 482.34 732.34730 603.00 691.31 479.91 729.91732 605.00 693.05 477.50 727.50734 607.00 694.80 475.10 725.10736 609.00 696.55 472.72 722.72

MAX: 126.00 0.9981 338.08 2006.64 2256.64

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0 100 200 300 400 500 600 700 8000.00

500.00

1000.00

1500.00

2000.00

2500.00Heat Intensity Plot

Distance from Flare (ft)

Hea

t In

tens

ity

(Btu

/hr/

sqft

)

Page 16: Flare Radiation

0 100 200 300 400 500 600 700 8000.00

500.00

1000.00

1500.00

2000.00

2500.00Heat Intensity Plot

Distance from Flare (ft)

Hea

t In

tens

ity

(Btu

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sqft

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Page 17: Flare Radiation

Flame Distortion Cause by Wind Velocity:R R' D K Allow

l 1/l (1/l)-(1/Lf) 0.00 -127.00 361.14 1758.51

31.79 0.0315 0.0283 4.3185 0.2316 7.1710 30.9681 10.00 -117.00 357.75 1792.04

63.58 0.0157 0.0126 1.9193 0.5210 14.6878 28.1907 20.00 -107.00 354.60 1823.96

95.36 0.0105 0.0073 1.1196 0.8932 21.1751 23.7079 30.00 -97.00 351.72 1854.04

127.15 0.0079 0.0047 0.7198 1.3894 25.7997 18.5694 40.00 -87.00 349.09 1882.03

158.94 0.0063 0.0031 0.4798 2.0841 28.6591 13.7516 50.00 -77.00 346.73 1907.70

190.73 0.0052 0.0021 0.3199 3.1261 30.2762 9.6850 60.00 -67.00 344.65 1930.83

222.51 0.0045 0.0013 0.2056 4.8628 31.1360 6.4029 70.00 -57.00 342.85 1951.20

254.30 0.0039 0.0008 0.1200 8.3362 31.5613 3.7860 80.00 -47.00 341.33 1968.62

286.09 0.0035 0.0003 0.0533 18.7565 31.7425 1.6923 90.00 -37.00 340.10 1982.91

317.876 0.0031 0.0000 0.0000 31.7876 100.00 -27.00 339.15 1993.94

110.00 -17.00 338.50 2001.60

120.00 -7.00 338.15 2005.80

X ó x= 253.996 ft 77.42 m 130.00 3.00 338.09 2006.50

Y ó y= 136.754 ft 41.68 m 140.00 13.00 338.33 2003.70

150.00 23.00 338.86 1997.41

H'=H+0.5*Y 338.077 160.00 33.00 339.68 1987.72

R'=R-0.5*X 170.00 43.00 340.80 1974.71

180.00 53.00 342.21 1958.52

190.00 63.00 343.90 1939.31

200.00 73.00 345.87 1917.26

210.00 83.00 348.12 1892.58

220.00 93.00 350.64 1865.49

230.00 103.00 353.42 1836.22

240.00 113.00 356.46 1805.00

250.00 123.00 359.76 1772.09

Maximo: 2006.50

INPUT In Mts:

45.00 20.64 338.71 1999.21

NOISE LEVEL ESTIMATION:

L= 54.31 Noise Intensity Parameter, which depends on pressure ratio across the PSV releasing into the stack header

C= 838.40 Speed of sound in the waste gas (ft/sec)

L100= 116.15 Noise Intensity at 100ft from the stack tip, decibels.

Lp= 110.26 Noise Intensity at distance r from the stack tip, decibels.

∑∆y/∑∆x ∑∆x/∑∆y ∑∆x ∑∆y

∑∆x =

∑∆y =

0.00 50.00 100.00 150.00 200.00 250.00 300.00

1600.00

1700.00

1800.00

1900.00

2000.00

Page 18: Flare Radiation

GAS PROPERTIES AND COMPOSITION CALCULATOR (By Volume)

Total flow Volume: 823500 SCFHMolecular Weight 63Factor de Comp. (z) 1

SUBSTANCE MOL% M.W. Heating Value @60°F Calc.SCFH

Hydrogen H2 0 2.0159 273.8 0Methane CH4 75.6 16.043 909.4 622566Ethene (Ethylene) C2H4 0 28.054 1499.1 0Ethane C2H6 5.2 30.07 1618.7 42822Propene (Propylene) C3H6 0 42.081 2181.8 0Propane C3H8 1.83 44.097 2314.9 15070.051-Butene (Butylene) C4H8 0 56.108 2878.7 0Butanes C4H10 0.93 58.123 3010.8 7658.551-Pentene C5H10 0 70.134 3575 0Pentanes C5H12 0.43 72.15 3706.9 3541.05Benzene C6H6 0 78.114 3590.9 0Hexane C6H14 0.2 86.177 4403.8 1647n-Heptane C7H16 0 100.204 5100 0n-Octane C8H18 0 114.231 5796.1 0Toluene C7H8 0.29 92.141 4273.6 2388.15o-Xylene C8H10 0 106.167 4958.2 0m-Xylene C8H11 0 106.167 4956.3 0p-Xylene C8H12 0 106.167 4957.1 0Acetylene C2H2 0 26.038 1423.2 0Methanol CH3OH 0 32.042 766.1 0Others 0 0

Hydrogen Sulphide H2S 0 34.08 586.8 0Carbon dioxide CO2 14 44.01 0 115290Carbon Monoxide CO2 0 28.01 320.5 0Sulphur Dioxide SO2 0 64.06 0 0Ammonia NH3 0 17.0305 359 0Water Vapor H2O 0 18.0153 0 0Nitrogen N2 1.52 28.0134 0 12517.2

T O T A L 100 22.38 823500

RESUME:Avg. Mol Weight 22.38SG(air) 0.773Temperature 300 °FTotal Moles/h 2771.43609Total Flow Weight 62015.5346 Kg/hr

136720.851 Lb/hrTotal Flow Volume 823500 SCFH 19.76 MMSCFD

22105.0282 Nm3/hr 0.59 MMSCMD

Heat Release 7.24E+08 Btu/hr1.82E+08 Kcal/hr2.12E+08 watts

Calorific Value 879.18 Btu/ft35295.51 Btu/Lb

Page 19: Flare Radiation

GAS PROPERTIES AND COMPOSITION CALCULATOR (By Volume)

Calc. Btu/Hr

0.00E+005.66E+080.00E+006.93E+070.00E+003.49E+070.00E+002.31E+070.00E+001.31E+070.00E+007.25E+060.00E+000.00E+001.02E+070.00E+000.00E+000.00E+000.00E+000.00E+000.00E+00

0.00E+000.00E+000.00E+000.00E+000.00E+000.00E+000.00E+00

7.24E+08

Page 20: Flare Radiation

Factor de Compresibilidad Z

Página 20

Calculo del Factor de Compresibilidad

de una mezcla gaseosa mediante la

Corriente : N2 input ecuación de Redlich Kwong

Temperatura deg.C 50.0 inputdeg K 323.0deg.F 122.0

Presión bar 1.00 input

PSIA 14.50

input PC TC Omega CpComp. mol % Peso Molecular (b.a) (deg.C) acc. Factor kcal/kmol.°C

H2O 6.93 18.02 221.23 374.17 0.3434 8.04CO2 0.00 44.01 73.86 31.04 0.2667 8.20H2S 93.07 34.08 71.45 100.33 0.0920 8.20N2 0.00 28.01 34.00 -147.06 0.0372 6.99C1 0.00 16.04 46.06 -82.60 0.0126 7.84C2 0.00 30.07 48.81 32.28 0.0978 12.18C3 0.00 44.10 42.50 96.67 0.1541 18.87iC4 0.00 58.12 36.49 134.98 0.1840 26.85nC4 0.00 58.12 37.98 152.57 0.2015 22.90iC5 0.00 72.15 33.82 187.24 0.2286 29.73nC5 0.00 72.15 33.70 196.44 0.2524 27.72C6 0.00 86.18 30.13 234.22 0.2998 31.97C7 0.00 100.21 27.37 267.06 0.3494 37.02

Cn+ 0.00 114.23 24.87 295.61 0.3981 40.79total 100.00 32.9631 81.83 119.31 0.1094 8.18577

Grav. Gas (aire=1) 1.138

Condiciones del Gas :Presión Reducida : 0.012220878Temperatura Reducida : 0.823400949Factor de Compresibilidad : 0.992564101Volumen Esp. ( L / mol ) : 26.63738273Densidad (Kg / m^3 ): 1.237475543Entalpia Esp. (kJ / kmol) 834.75096

Constantes de Redlich Kwong :

Tri Pri Ai Bi ai biH2O 0.49921 0.00452 0.00191 0.00000 0.0470683 0.0001007CO2 1.06233 0.01354 0.00000 0.00000 0 0H2S 0.86523 0.01400 0.02266 0.00009 6.6488007 0.0024159N2 2.56276 0.02941 0.00000 0.00000 0 0C1 1.69588 0.02171 0.00000 0.00000 0 0C2 1.05802 0.02049 0.00000 0.00000 0 0C3 0.87380 0.02353 0.00000 0.00000 0 0iC4 0.79179 0.02741 0.00000 0.00000 0 0nC4 0.75907 0.02633 0.00000 0.00000 0 0iC5 0.70191 0.02957 0.00000 0.00000 0 0nC5 0.68815 0.02968 0.00000 0.00000 0 0C6 0.63691 0.03319 0.00000 0.00000 0 0C7 0.59820 0.03654 0.00000 0.00000 0 0

Cn+ 0.56816 0.04021 0.00000 0.00000 0 0Total --- 0.02457 0.0000938 6.6958689 0.0025165

Ecuación : f(Z) = 0 = (aZ^3+bZ^2+cZ+d=0) 6.6083088a= 1 L^2*atm*°K/mol^2

b= -1c= 0.007392598d= -1.190E-005

Page 21: Flare Radiation

Factor de Compresibilidad Z

Página 21

input Z root = 0.992564101f(Z) =? 0 0.00000000

-0.25-0.2-0.15-0.1-0.0500.010.020.030.040.050.060.070.080.090.10.110.120.130.140.150.160.170.180.190.20.210.220.230.240.250.260.270.280.290.30.310.320.330.340.350.360.370.380.390.40.410.420.430.440.450.460.470.480.490.50.510.520.530.540.550.560.570.580.590.60.610.620.630.640.650.660.670.680.690.70.710.720.730.740.750.760.770.780.790.80.810.820.830.840.850.860.870.880.890.90.910.920.930.940.950.960.970.980.991

-0.16

-0.14

-0.12

-0.1

-0.08

-0.06

-0.04

-0.02

0

0.02

f(z) vs. z

Zi

f(z

i)

Solver

Page 22: Flare Radiation

Factor de Compresibilidad Z

Página 22

Page 23: Flare Radiation

Factor de Compresibilidad Z

Página 23

Zroot Función (=0)

-0.25 -0.07998505-0.2 -0.04949042

-0.15 -0.02699579-0.1 -0.01175116

-0.05 -0.00300653

0 -1.190E-0050.01 -3.698E-005

Cp 0.02 -0.00025605kJ / kmol °c 0.03 -0.00066312

33.66 0.04 -0.001252234.33 0.05 -0.0020172734.32 0.06 -0.0029523529.25 0.07 -0.0040514232.83 0.08 -0.005308550.99 0.09 -0.0067175779.01 0.1 -0.00827264

112.43 0.11 -0.0099677295.87 0.12 -0.01179679

124.49 0.13 -0.01375387116.07 0.14 -0.01583294133.83 0.15 -0.01802801154.97 0.16 -0.02033309170.78 0.17 -0.02274216

34.27218 0.18 -0.025249240.19 -0.027848310.2 -0.03053338

0.21 -0.033298460.22 -0.036137530.23 -0.039044610.24 -0.042013680.25 -0.045038750.26 -0.048113830.27 -0.05123290.28 -0.054389980.29 -0.057579050.3 -0.06079412

0.31 -0.06402920.32 -0.067278270.33 -0.070535350.34 -0.073794420.35 -0.077049490.36 -0.080294570.37 -0.083523640.38 -0.086730720.39 -0.089909790.4 -0.09305486

0.41 -0.096159940.42 -0.099219010.43 -0.102226090.44 -0.105175160.45 -0.108060230.46 -0.110875310.47 -0.113614380.48 -0.116271460.49 -0.118840530.5 -0.1213156

0.51 -0.123690680.52 -0.12595975

Page 24: Flare Radiation

Factor de Compresibilidad Z

Página 24

0.53 -0.128116830.54 -0.13015590.55 -0.132070970.56 -0.133856050.57 -0.135505120.58 -0.13701220.59 -0.138371270.6 -0.13957634

0.61 -0.140621420.62 -0.141500490.63 -0.142207570.64 -0.142736640.65 -0.143081710.66 -0.143236790.67 -0.143195860.68 -0.142952940.69 -0.142502010.7 -0.14183708

0.71 -0.140952160.72 -0.139841230.73 -0.138498310.74 -0.136917380.75 -0.135092450.76 -0.133017530.77 -0.13068660.78 -0.128093680.79 -0.125232750.8 -0.12209782

0.81 -0.11868290.82 -0.114981970.83 -0.110989050.84 -0.106698120.85 -0.102103190.86 -0.097198270.87 -0.091977340.88 -0.086434420.89 -0.080563490.9 -0.07435856

0.91 -0.067813640.92 -0.060922710.93 -0.053679790.94 -0.046078860.95 -0.038113930.96 -0.029779010.97 -0.021068080.98 -0.011975160.99 -0.00249423

1 0.007380696

-0.25-0.2-0.15-0.1-0.0500.010.020.030.040.050.060.070.080.090.10.110.120.130.140.150.160.170.180.190.20.210.220.230.240.250.260.270.280.290.30.310.320.330.340.350.360.370.380.390.40.410.420.430.440.450.460.470.480.490.50.510.520.530.540.550.560.570.580.590.60.610.620.630.640.650.660.670.680.690.70.710.720.730.740.750.760.770.780.790.80.810.820.830.840.850.860.870.880.890.90.910.920.930.940.950.960.970.980.991

-0.16

-0.14

-0.12

-0.1

-0.08

-0.06

-0.04

-0.02

0

0.02

f(z) vs. z

Zi

f(z

i)

Page 25: Flare Radiation

Factor de Compresibilidad Z

Página 25

Page 26: Flare Radiation

API Recommended Prantice 521

Sizing a Knockout Drum (Horizontal):S.I.

Total Mass= 200000 lb/hr 90718 kg/hr

Pressure Gauge= 2 Psig 0.138 bar

Temperature= 300 °F 148.89 °C

Liquid Mass= 31000 lb/hr 14061 kg/hr

Liquid Density= 31 lb/ft3 496.57 kg/m3

Vapor Mass= 169000 lb/hr 76657 kg/hr

Vapor Density= 0.18 lb/ft3 2.88 kg/m3

Vapor Viscosity= 0.01 cp

Droplet Size Allowable= 300 micron 0.3 mm

Miscellaneous Drainings= 66.84 ft^3 1.89 m3

Liquid Holdup= 30 min

C*Re^2= 5025.13

C= 1.3 ...Drag coefficient, From figure 9

ud= 2.35 ft/sec ...Dropout velocity 0.716 m/seg

Vcond= 500.00 ft^3 ...Volume of Condensed Liquids 14.16 m3

Vtotal= 566.84 ft^3 ...Total Liquid Volume. 16.05 m3

Trial Assumed Assumed Cross Seccion Area Vertical Depth of Liquid

Drum Inside Drum Leng. TOTAL Miscell Real Liquid Vapor Depth Depth Depth Depth Liquid Vapor

Diameter Drains Conden. C. Area Area Drains all Liq Vapor Total Dropout Velocity

D L L/D At Al1 Al2 Av hl1 hl1+hl2 hv ht tita uv

ft ft ft^2 ft^2 ft^2 ft^2 ft^2 in in in in sec ft/sec

1 8.0 19.0 2.38 50.27 3.51789 26.3158 29.8337 20.43 11.5621 55.2667 40.7333 96 1.44471 12.7253

2 7.5 20.5 2.73 44.18 3.26049 24.3902 27.6507 16.53 11.2816 54.1488 35.8512 90 1.27156 15.731

3 7.0 22.5 3.21 38.48 2.97067 22.2222 25.1929 13.29 10.8905 52.4672 31.5328 84 1.11839 19.5612

4 6.5 25.0 3.85 33.18 2.6736 20 22.6736 10.51 10.4423 50.5033 27.4967 78 0.97524 24.7396

Page 27: Flare Radiation

API Recommended Prantice 521

Required

Length

Lmin

ft

18.38

20.00

21.88

24.13