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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 7 : Design for Parallel Reactions"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.2 page no : 159"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"#Initial Concentration(mol/litre)eactant in combined feed\n",
"CAo = 10.\n",
"CBo = 10. \n",
"XA = 0.9; # conversion\n",
"CAf = CAo*(1-XA);\n",
"CA = CAf;\n",
"\n",
"# Calculations\n",
"def f4(CA): \n",
"\t return 1./(1+CA**0.5)\n",
"\n",
"Qp = (-1./(CAo-CAf))* quad(f4,CAo,CAf)[0]\n",
"\n",
"CRf = 9*Qp;\n",
"CSf = 9*(1-Qp)\n",
"# Results\n",
"print \" Part a\"\n",
"print \" For Plug Flow\"\n",
"print \" Concentration of R in the product stream is %.2f mol/litre\"%(CRf)\n",
"print \" Csf is %.2f mol/litre\"%(CSf)\n",
"\n",
"Qm = CA/(CA+CA**1.5);\n",
"CRf = 9*Qm;\n",
"Csf = 9*(1-Qm)\n",
"print \" Part b\"\n",
"print \" For Mixed Flow\"\n",
"print \" Concentration of R in the product stream is %.2f mol/litre \"%(CRf)\n",
"print \" Csf is %.2f mol/litre\"%(Csf)\n",
"\n",
"CAo = 19.\n",
"CB = 1;\n",
"\n",
"def f5(CA): \n",
"\t return CA/(CA+CB**1.5)\n",
"\n",
"Q = -1./(CAo-CAf)* quad(f5,CAo,CAf)[0]\n",
"CRf = 9*Q;\n",
"Csf = 9*(1-Q)\n",
"print \" Part c\"\n",
"print \" For Plug flow A Mixed flow B\"\n",
"print \" Concentration of R in the product stream is %.2f mol/litre\"%(CRf)\n",
"print \" Csf is %.2f mol/litre\"%(Csf)\n",
"print ('The result for plug flow varies as there seems to be typographical error in integration done in book')\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Part a\n",
" For Plug Flow\n",
" Concentration of R in the product stream is 2.86 mol/litre\n",
" Csf is 6.14 mol/litre\n",
" Part b\n",
" For Mixed Flow\n",
" Concentration of R in the product stream is 4.50 mol/litre \n",
" Csf is 4.50 mol/litre\n",
" Part c\n",
" For Plug flow A Mixed flow B\n",
" Concentration of R in the product stream is 7.85 mol/litre\n",
" Csf is 1.15 mol/litre\n",
"The result for plug flow varies as there seems to be typographical error in integration done in book\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.3 page no : 162"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"CAo = 2; # decomposition of A\n",
"CA = 0.5;\n",
"CAf = 0.;\n",
"\n",
"Csf = (CAo-CA)*2*CA/(1+CA)**2;\n",
"\n",
"print \" Part a\"\n",
"print \" For Mixed Flow Reactor\"\n",
"print \" Maximum expected Cs is %.3f\"%(Csf)\n",
"\n",
"# Calculations\n",
"def f12(CA): \n",
"\t return 2*CA/(1+CA)**2\n",
"\n",
"Csf = -1* quad(f12,CAo,CAf)[0]\n",
"\n",
"# Results\n",
"print \" Part b\"\n",
"print \" For Plug Flow\"\n",
"print \" Maximum expected concentration of S is %.3f \"%(Csf)\n",
"\n",
"CA = 1.;\n",
"Csf = (CAo-CA)*2*CA/(1+CA)**2;\n",
"\n",
"print \"Part c\"\n",
"print \" For MFR with separation and recycle\" \n",
"print \" Concentration of Csf is %.2f\"%(Csf)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Part a\n",
" For Mixed Flow Reactor\n",
" Maximum expected Cs is 0.667\n",
" Part b\n",
" For Plug Flow\n",
" Maximum expected concentration of S is 0.864 \n",
"Part c\n",
" For MFR with separation and recycle\n",
" Concentration of Csf is 0.50\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7.4 page no : 164"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"import math \n",
"from scipy.integrate import quad \n",
"\n",
"# Variables\n",
"CAo = 2. # based on example 7.3\n",
"CA = 1.\n",
"Q = 0.5\n",
"\n",
"# Calculations\n",
"Cs1 = Q*(CAo-CA);\n",
"\n",
"def f6(CA): \n",
"\t return 2*CA/(1+CA)**2\n",
"\n",
"Cs2 = -1* quad(f6,1,0)[0]\n",
"\n",
"#Total amount of CS formed is\n",
"Cs = Cs1+Cs2;\n",
"\n",
"# Results\n",
"print \"Mixed flow followed by plug flow would be best\"\n",
"print \" Total amount of CS formed is %.3f mol/litre\"%(Cs)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Mixed flow followed by plug flow would be best\n",
" Total amount of CS formed is 0.886 mol/litre\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 5
}
],
"metadata": {}
}
]
}
|
