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diff --git a/Engineering_&_Chemical_Thermodynamics/ch1.ipynb b/Engineering_&_Chemical_Thermodynamics/ch1.ipynb new file mode 100755 index 00000000..b3ff4f91 --- /dev/null +++ b/Engineering_&_Chemical_Thermodynamics/ch1.ipynb @@ -0,0 +1,164 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 1 : Measured thermodynamic Properties and Other Basic Concepts" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.3 Page No : 28" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Variables\n", + "P = 1.4 ; \t\t\t# [MPa]\n", + "T = 333. \t\t\t#[K]\n", + "T1 = 320. \t\t\t#[K]\n", + "T2 = 360. \t\t\t#[K]\n", + "P_low = 1. \t\t\t#[MPa]\n", + "P_high = 1.5\n", + "V_cap_T1_P1 = 0.2678\n", + "V_cap_T2_P1 = 0.2873\n", + "V_cap_T1_P1_5 = 0.1765\n", + "V_cap_T2_P1_5 = 0.1899\n", + "\n", + "# Calculations\n", + "#At P = 1 MPa\n", + "V_cap_T333_P1 = V_cap_T1_P1 + (V_cap_T2_P1 - V_cap_T1_P1)*((T - T1)/(T2- T1))\n", + "\n", + "#Similarly at P=1.5 MPa\n", + "V_cap_T333_P1_5 = V_cap_T1_P1_5 + (V_cap_T2_P1_5 - V_cap_T1_P1_5)*((T - T1)/(T2 - T1))\n", + "\n", + "#At T=333*C\n", + "V_cap_P1_5 = V_cap_T333_P1_5 ;\n", + "V_cap_P1 = V_cap_T333_P1 ;\n", + "V_cap_P1_4 = V_cap_P1 + (V_cap_P1_5 - V_cap_P1)*((P - P_low)/(P_high - P_low)) ; \t\t\t#[m**3/kg]\n", + "\n", + "# Results\n", + "print 'Required specific volume = %.5f m**3/kg'%(V_cap_P1_4);\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Required specific volume = 0.19951 m**3/kg\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.4 Page No : 29" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Variables\n", + "P = 1.4 ; \t\t\t#[MPa]\n", + "P_low = 1 ;\t\t\t#[MPa]\n", + "P_high = 1.5;\t\t\t#[MPa]\n", + "\n", + "#At T=333*C from interpolation we have\n", + "v_cap_P1_5 = 0.18086 ;\t\t\t#[m**3/kg]\n", + "v_cap_P1 = 0.27414 ;\t\t\t#[m**3/kg]\n", + "\n", + "# Calculations\n", + "#Molar volume is inversely proportional to pressure\n", + "v_cap_P1_4 = v_cap_P1 +(v_cap_P1_5 - v_cap_P1)*((1/P - 1/P_low)/(1/P_high - 1/P_low));\n", + "x=(0.19951-v_cap_P1_4)/v_cap_P1_4*100 ;\n", + "\n", + "# Results\n", + "print 'Specific volume m**3/kg) = %g m**3/kg'%(v_cap_P1_4);\n", + "print 'Percentage difference = %.1f %%'%(x);\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Specific volume m**3/kg) = 0.194186 m**3/kg\n", + "Percentage difference = 2.7 %\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 1.5 page no : 29" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# variables\n", + "V1 = 1 # volume\n", + "m1 = 2.5 # water\n", + "Vv = 5.042 # m**3/kg\n", + "Vt = .001023 # m**3/kg\n", + "T_44632 = 145 # C\n", + "T_39278 = 150 # C\n", + "\n", + "# Calculations\n", + "v1 = V1/m1 \n", + "x1 = (v1 - Vt)/(Vv - Vt)\n", + "\n", + "T2 = T_44632 + ( T_39278 - T_44632) * (( 0.4 - 0.44632)/(0.39278 - 0.44632))\n", + "\n", + "# Restuls\n", + "print \"Approximately %.f %% of the mass of water in the vapor\"%(round(x1,2)*100)\n", + "print \"Temperature T2 = %.1f C\"%T2\n", + "\n", + "# Note : Answer in book is wrong. Please calculate manually.\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Approximately 8 % of the mass of water in the vapor\n", + "Temperature T2 = 149.3 C\n" + ] + } + ], + "prompt_number": 8 + } + ], + "metadata": {} + } + ] +}
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