Added(A)/Deleted(D) following books

 A  Introduction_to_Thermal_Systems_Engineering:_Thermodynamics,_Fluid_Mechanics,_and_Heat_Transfe_by_Moran,_Shapiro,_Munson,_Dewitt/README.txt
A  Material_Science_by_S._L._Kakani_and_A._Kakani/README.txt
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch10.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch11.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch12.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch13.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch14.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch15.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch16.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch18.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch2.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch3.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch4.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch5.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch6.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch7.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch8.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/ch9.ipynb
A  Material_Science_by_S._L._Kakani_and_A._Kakani/screenshots/10.png
A  Material_Science_by_S._L._Kakani_and_A._Kakani/screenshots/16.png
A  Material_Science_by_S._L._Kakani_and_A._Kakani/screenshots/7.png
A  Thermodynamics_by_K._M._Gupta/README.txt
A  Thermodynamics_by_K._M._Gupta/ch1.ipynb
A  Thermodynamics_by_K._M._Gupta/ch10.ipynb
A  Thermodynamics_by_K._M._Gupta/ch11.ipynb
A  Thermodynamics_by_K._M._Gupta/ch2.ipynb
A  Thermodynamics_by_K._M._Gupta/ch3.ipynb
A  Thermodynamics_by_K._M._Gupta/ch4.ipynb
A  Thermodynamics_by_K._M._Gupta/ch5.ipynb
A  Thermodynamics_by_K._M._Gupta/ch6.ipynb
A  Thermodynamics_by_K._M._Gupta/ch7.ipynb
A  Thermodynamics_by_K._M._Gupta/ch8.ipynb
A  Thermodynamics_by_K._M._Gupta/ch9.ipynb
A  Thermodynamics_by_K._M._Gupta/screenshots/1.png
A  Thermodynamics_by_K._M._Gupta/screenshots/2.png
A  Thermodynamics_by_K._M._Gupta/screenshots/3.png

1 files changed, 298 insertions, 0 deletions

diff --git a/Thermodynamics_by_K._M._Gupta/ch7.ipynb b/Thermodynamics_by_K._M._Gupta/ch7.ipynb
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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:3e3cc60dc2a7aa47248e51781bc474e34ce30f23ed528c32391da2267db7146e"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter  7 : Entropy"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.2 Page No :  Page No : 172"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math \n",
+      "\n",
+      "# Variables\n",
+      "v1 = 0.05;\t\t    \t# in m**3\n",
+      "v2 = 8. * v1;\t\t\t# in m**3\n",
+      "T1 = 280.;\t\t    \t# in \u00b0C\n",
+      "T1 = T1 + 273;\t\t\t# in K\n",
+      "T2 = 25.;\t\t        # in \u00b0C\n",
+      "T2 = T2 + 273;\t\t\t# in K\n",
+      "p1 = 8.;\t        \t\t# in bar\n",
+      "C_p = 1.005;\t\t\t# in kJ/kgK\n",
+      "C_v = 0.712;\t\t\t# in kJ/kgK\n",
+      "\n",
+      "# Calculations\n",
+      "R = C_p - C_v;\t\t\t# in kJ/kgK\n",
+      "del_phi = (R * ( math.log(v2/v1)) ) + (C_v * (math.log(T2/T1)) );\t\t\t# in kJ/kgK\n",
+      "\n",
+      "# Results\n",
+      "print \"The change in entrophy of air during the process in kJ/kgK is : %.3f\"%del_phi\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The change in entrophy of air during the process in kJ/kgK is : 0.169\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.3 Page No : 172"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math \n",
+      "\n",
+      "# Variables\n",
+      "m = 5.;      \t\t\t# in kg\n",
+      "T1 = 50.;\t    \t\t# in \u00b0C\n",
+      "T1 = T1 + 273;\t\t\t# in K\n",
+      "T2 = 250.;\t\t\t    # in \u00b0C\n",
+      "T2 = T2 + 273;\t    \t# in K\n",
+      "C_p = 1.0;\n",
+      "C_v = 0.72;\n",
+      "T3 = 50.;   \t\t\t# in \u00b0C\n",
+      "T3 = T3 + 273;\t\t\t# in K\n",
+      "\n",
+      "# Calculations\n",
+      "del_phi = m * C_p * (math.log(T2/T1));\t\t\t# in kJ/ K (this is increase in entrophy)\n",
+      "del_phi1 = m * C_v * (math.log(T3/T2));\t\t\t# in kJ/K (this is decrease in entrophy)\n",
+      "phi_net = del_phi - abs(del_phi1);\t\t\t    # in kJ/K\n",
+      "\n",
+      "# Results\n",
+      "print  \"net change in entrophy in kJ/K is : %.3f\"%phi_net\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "net change in entrophy in kJ/K is : 0.675\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.6 Page No : 174"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "# Variables\n",
+      "Q1 = 1600.;\t\t\t# in kJ\n",
+      "Q2 = 1600.;\t\t\t# in kJ\n",
+      "T1 = 800.;\t\t\t# in K\n",
+      "T2 = 127.;\t\t\t# in \u00b0C\n",
+      "\n",
+      "# Calculations\n",
+      "T2 = T2 + 273;\t\t\t# in K\n",
+      "d1_phi = Q1/T1;\t\t\t# in kJ per K\n",
+      "d2_phi = Q2/T2;\t\t\t# in kJ per K\n",
+      "net_phi = d2_phi - d1_phi;\t\t\t# in kJ per K\n",
+      "\n",
+      "# Results\n",
+      "print \"entrophy generated during the process in kJ/K is : \",net_phi\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "entrophy generated during the process in kJ/K is :  2.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.8 Page No : 175"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math \n",
+      "\n",
+      "# Variables\n",
+      "T_A = 50.+273;\t\t\t# in K\n",
+      "T_B = 13.+273;\t\t\t# in K\n",
+      "P_A = 130.;\t\t\t# in kPa\n",
+      "P_B = 100.;\t\t\t# in kPa\n",
+      "Cp = 1.005;\t\t\t# in kJ/kg-K\n",
+      "pvByT = 0.287;\t\t\t# p in kPa, v in m**3/kg, T in K\n",
+      "\n",
+      "# Calculations\n",
+      "del_S_system = Cp*math.log(T_B/T_A)-pvByT*math.log(P_B/P_A);\t\t\t# in kJ/kg-K\n",
+      "del_S_surrounding = 0;\n",
+      "del_S_universe = del_S_system+del_S_surrounding;\t\t\t# in kJ/kg-K\n",
+      "\n",
+      "# Results\n",
+      "print  \"change in entropy in kJ/kg-K is : %.3f\"%del_S_universe\n",
+      "print (\"But a negative change in entropy is not possible,\");\n",
+      "print (\"therefore the flow of air must be from B to A\")\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "change in entropy in kJ/kg-K is : -0.047\n",
+        "But a negative change in entropy is not possible,\n",
+        "therefore the flow of air must be from B to A\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.9 Page No : 176"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math \n",
+      "\n",
+      "# Variables\n",
+      "m = 5.\t    \t\t# in kg\n",
+      "s= 4.18 \n",
+      "T1 = 0.\t    \t\t# in \u00b0C\n",
+      "T2 = 20.\t\t\t# in \u00b0C\n",
+      "dt = T2 - T1;\t\t\t# in \u00b0C\n",
+      "Q = m * s * dt;\t\t\t# in kJ\n",
+      "L = 335.;\t\t\t# in kJ/kg\n",
+      "\n",
+      "# Calculations\n",
+      "# Q = m_i * l\n",
+      "m_i = Q/L;\t\t\t# in kg\n",
+      "T1 = T1 + 273;\t\t\t# in K\n",
+      "T2 = T2 + 273;\t\t\t# in K\n",
+      "del_S = ((m_i * L)/T1) - (m * s * (math.log(T1/T2)));\t\t\t# in kJ per K\n",
+      "\n",
+      "# Results\n",
+      "print  \"change in entropy of the adiabatic system in kJ/K is %.3f\"%del_S\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "change in entropy of the adiabatic system in kJ/K is 3.009\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7.11 Page No : 177"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math \n",
+      "\n",
+      "# Variables\n",
+      "p1 = 1. * 10**5;\t\t\t# in N/m**2\n",
+      "C_p = 1.005;\t\t\t# in kJ/kg k\n",
+      "R = 287.;\t\t\t# in j/kg k\n",
+      "T1 = 290.;\t\t\t# in K\n",
+      "T2 = 580.;\t\t\t# in K\n",
+      "v1 = 1.;\t\t\t# in m**3\n",
+      "\n",
+      "# Calculations\n",
+      "m = (p1 * v1)/(R * T1);\t\t\t# in kg\n",
+      "Q = m * R * (T2-T1);\t\t\t# in J\n",
+      "Q = Q * 10**-3;\t\t\t# in kJ\n",
+      "del_phi = m * C_p * (math.log(T2/T1));\t\t\t# in kJ per K\n",
+      "R = R * 10**-3;\t\t\t# in kJ/kg K\n",
+      "C_v = C_p - R;\t\t\t# in kJ/kg k\n",
+      "del1_phi = m * C_v * (math.log(T1/T2));\t\t\t# in kJ/K\n",
+      "net_phi = del_phi + del1_phi;\t\t\t# in kJ/K\n",
+      "\n",
+      "# Results\n",
+      "print \"Over all change in entrophy in kJ/K is : %.4f\"%net_phi\n",
+      "\n",
+      "# rounding off error\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Over all change in entrophy in kJ/K is : 0.2390\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file