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HW_5_Solution

# HW_5_Solution - Problem 3-21 nZRT m PV ZRT M m PM density V...

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Problem 3-21 Component Mole Fractions Critical Pressure Critical Temperature Molecular weight Methane 0.8700 666.4 579.8 -116.7 343.3 298.7 16.04 13.96 Ethane 0.0490 706.5 34.6 89.9 549.9 26.9 30.07 1.47 Propane 0.0360 616.0 22.2 206.1 666.1 24.0 44.10 1.59 i-Butane 0.0250 527.9 13.2 274.5 734.5 18.4 58.12 1.45 n-Butane 0.0200 550.6 11.0 305.6 765.6 15.3 58.12 1.16 1.0000 660.8 383.3 19.63 1.67 7.04 From Fig 3-7, Z 0.96 For P= 4650 Psia and T=(180+460) o R y i P ci , psia y i * P ci T c , o F T c , o R y i * T ci P pc T pc T pr = T / T pc P pr = P / P pc i M i i M y ft lb/cu 58 . 13 640 * 10.73 * 0.96 19.63 * 4560 density = = ZRT PM V m density ZRT M m PV nZRT PV = = = =

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Problem 3-23 0.932 Z 580 * 10.73 * 0.0862 0.5 * 1000 nRT PV Z is pressure at this factor - Z the Therefore moles - lbm 0.0862 0.0923 - 0.1785 moles of number new the 1000Psia to drop pressure After moles - lbm 0.1785 n ) 460 120 ( * 73 . 10 * 9 . 0 5 . 0 * 2000 ZRT PV n moles of number initial Find = = = = = = + = =
Problem 3-27 Pressure 7000 psig 7014 psia Temperature, T 256 716 Area, A 7,040 acre 306,662,400 Thickness, h 13 ft 0.4 0.6 Porosity, Ø 0.11 263,116,339 Component Mole Fractions Critical Pressure Critical Temperature Methane 0.6904 666.4 460.1 -116.7 343.3 237.0 Ethane 0.0864 706.5 61.0 89.9 549.9 47.5 Propane 0.0534 616.0 32.9 206.1 666.1 35.6 i-Butane 0.0115 527.9 6.1 274.5 734.5 8.4 n-Butane 0.0233 550.6 12.8 305.6 765.6 17.8 i-Pentane 0.0093 490.4 4.6 369.1 829.1 7.7 n-Pentane 0.0085 488.6 4.2 385.8 845.8 7.2 Hexanes 0.0173 436.9 7.6 453.6 913.6 15.8 Heptanes plus 0.0999 335.0 33.5

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HW_5_Solution - Problem 3-21 nZRT m PV ZRT M m PM density V...

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