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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 24 : Fluid-Fluid Reactors: Design"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 24.1 pageno : 551"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"kag_a = 0.32; # mol/hr.m**3 Pa\n",
"kal_a = 0.1 # hr\n",
"HA = 12.5 # Pa.m**3/mol\n",
"Fg = 10.**5 # mol/hr.m**2\n",
"Fl = 7.*10**5 # mol/hr.m**2\n",
"Ct = 56000.; #mol/m3\n",
"P = 10.**5; #Pa\n",
"\n",
"# Calculations\n",
"inv_Kag_a = 3.125+HA/(kal_a);\n",
"Gfilm_res = (3.125)/inv_Kag_a;\n",
"Lfilm_res = (HA/(kal_a))/inv_Kag_a;\n",
"Kag_a = 1/inv_Kag_a;\n",
"d = 20;\n",
"def f9(dp): \n",
"\t return 1./20\n",
"\n",
"h = (Fg/(P*Kag_a))* quad(f9,20,100)[0]\n",
"\n",
"# Results\n",
"print \" The height of the tower required for countercurrent operartions is %.1f \"%(h),\n",
"print \"m\"\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" The height of the tower required for countercurrent operartions is 512.5 m\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 24.2 pageno : 554"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"Fg = 10.**5; \n",
"P = 10.**5;\n",
"Fg_by_Acs = 10.**5 #(Fg/Acs)\n",
"PA1 = 20;PA2 = 100.;\n",
"kag_a = 0.32;\n",
"\n",
"# Calculations\n",
"def f10(PA): \n",
"\t return 1./(0.32*PA)\n",
"\n",
"h = (Fg_by_Acs/P)* quad(f10,PA1,PA2)[0]\n",
"\n",
"# Results\n",
"print \" The height of the tower is %.2f \"%(h),\n",
"print \"m\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" The height of the tower is 5.03 m\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 24.3 pageno : 555"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"\n",
"# from example 24.2\n",
"Fg = 10.**5;\n",
"P = 10.**5;\n",
"PA1 = 20.\n",
"PA2 = 100.;\n",
"HA = 12.5;\n",
"kaga = 0.32\n",
"kla = 0.1;\n",
"\n",
"# Calculations\n",
"rA = 420./((1./kaga)+(HA/kla));\n",
"\n",
"def f8(PA): \n",
"\t return 1./rA\n",
"\n",
"h = (Fg/P)* quad(f8,PA1,PA2)[0]\n",
"\n",
"# Results\n",
"print \"The height of the tower is %.1f\"%(h),\n",
"print \"m\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The height of the tower is 24.4 m\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 24.4 page no : 557"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"\n",
"# from example 24.2\n",
"PA1 = 20.\n",
"PA2 = 100. #Pa\n",
"Fg_by_Acs = 10.**5;\n",
"P = 10.**5;\n",
"HA = 12.5;\n",
"kaga = 0.32\n",
"kla = 0.1;\n",
"PA = 39.5 #Pa\n",
"\n",
"# Calculations\n",
"def f11(P): \n",
"\t return 1./(kaga*P)\n",
"\n",
"def f22(P):\n",
" return (1/kaga+HA/kla)/1620\n",
"\n",
"h = (Fg_by_Acs/P)*( quad(f11,PA1,PA)[0] + quad(f22,PA,PA2)[0])\n",
"\n",
"# Results\n",
"print \"The height of the tower is %.2f\"%(h),\n",
"print \"m\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The height of the tower is 6.91 m\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 24.5 pageno : 558"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"\n",
"# from 24.2\n",
"Fg = 10.**5;\n",
"P = 10.**5;\n",
"Fg_by_Acs = 10.**5 #(Fg/Acs)\n",
"PA1 = 20.\n",
"PA2 = 100.\n",
"kag_a = 0.32;\n",
"\n",
"# Calculations\n",
"def f0(PA): \n",
"\t return 1./(PA/3.125)\n",
"\n",
"h = (Fg_by_Acs/P)* quad(f0,PA1,PA2)[0]\n",
"\n",
"# Results\n",
"print \" The height of the tower is %.2f \"%(h),\n",
"print \"m\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" The height of the tower is 5.03 m\n"
]
}
],
"prompt_number": 8
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 24.6 pageno : 560"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"kag_a = 0.72; # mol/hr.m**3 Pa\n",
"kal_a = 144.; # hr**-1\n",
"HA = 1000.; # Pa m**3/mol\n",
"Fg = 9000. #mol/hr\n",
"fl = 0.9\n",
"b = 1\n",
"Vr = 1.62 #m3\n",
"DA = 3.6*10**-6 #m2/hr\n",
"a = 100. #m2/m3\n",
"k = 2.6*10**5; #m3/mol.hr\n",
"DB = DA\n",
"P = 10**5\n",
"PA = 1000. #Pa\n",
"kal = kal_a/a;\n",
"#At the start\n",
"CBo = 555.6;\n",
"\n",
"# Calculations\n",
"Mh = (math.sqrt(DB*k*CBo))/kal;\n",
"#Min value of EAi\n",
"Ei = 1+(CBo*HA/PA);\n",
"if Ei>Mh:\n",
" E = Mh;\n",
"\n",
"rA1 = PA/((P*Vr/Fg)+(1/kag_a)+(HA/(kal_a*E))+(HA/(k*fl*CBo)));\n",
"#At the end\n",
"CBf = 55.6;\n",
"Mh = (math.sqrt(DB*k*CBf))/kal;\n",
"#Min value of EAi\n",
"Ei = 1+(CBf*HA/PA);\n",
"if Ei>Mh:\n",
" E = Mh;\n",
"\n",
"rA2 = PA/((P*Vr/Fg)+(1/kag_a)+(HA/(kal_a*E))+(HA/(k*fl*CBf)));\n",
"#Average rate of reaction\n",
"rA_avg = (rA1+rA2)/2;\n",
"\n",
"def f7(CB): \n",
"\t return 1./rA_avg\n",
"\n",
"t = (fl/b)* quad(f7,CBf,CBo)[0]\n",
"\n",
"# Results\n",
"print \" Part a\"\n",
"print \" The run time needed is %.2f\"%t,\n",
"print \"hr\"\n",
"#The min time required is\n",
"tmin = Vr*(CBo-CBf)/(Fg*(PA/(P-PA)));\n",
"print \" The minimum time required is %.2f\"%(tmin),\n",
"print \"hr\"\n",
"#Fraction of reacmath.tant which passes through the math.tank unreacted is\n",
"f = (t-tmin)/tmin;\n",
"print \" Part b\"\n",
"print \" Fraction of reacmath.tant which passes through the math.tank unreacted is %.3f\"%(f)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Part a\n",
" The run time needed is 9.13 hr\n",
" The minimum time required is 8.91 hr\n",
" Part b\n",
" Fraction of reacmath.tant which passes through the math.tank unreacted is 0.025\n"
]
}
],
"prompt_number": 11
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}
|
