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+{
+ "metadata": {
+  "name": "CHAPTER5"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter5 : Introduction to Convection"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "Example 5.1 Page NO. 248"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#How much heat must be added for the two cases.\n",
+      "\n",
+      "#Given\n",
+      "# properties of CO at 300K from appendix table D2\n",
+      "Cp=871\n",
+      "Gamma=1.3\n",
+      "\n",
+      "#calculation\n",
+      "Cv=Cp/Gamma\n",
+      "dT=20\n",
+      "m=5\n",
+      "Qp=m*Cp*dT\n",
+      "Qv=m*Cv*dT\n",
+      "\n",
+      "#Result\n",
+      "print\" The heat required at constant pressure is \",Qp/1000,\"kj\"\n",
+      "print\"The heat required at constant volume is \",Qv/1000,\"kj\"\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " The heat required at constant pressure is  87 kj\n",
+        "The heat required at constant volume is  67.0 kj\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "Example 5.2 Page NO.250"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#verify the valve for Voluemetric thermal coefficient\n",
+      "\n",
+      "#Given\n",
+      "# properties of Freon-12 from appendix table C3\n",
+      "T1_Fr=-50\n",
+      "T2_Fr=-40\n",
+      "rou1_Fr=1.546*1000\n",
+      "rou2_Fr=1.518*1000\n",
+      "\n",
+      "#Calculation\n",
+      "beta_Fr=-(rou1_Fr-rou2_Fr)/(rou1_Fr*(T1_Fr-T2_Fr))\n",
+      "beta_acc_Fr=2.63e-3 # the accurate value of volumetric thermal expansion coefficient for Freon-12\n",
+      "error_Fr=(beta_acc_Fr-beta_Fr)*100/beta_acc_Fr\n",
+      "# properties of helium from appendix table D3\n",
+      "T1_He=366\n",
+      "T2_He=477\n",
+      "rou1_He=0.13280\n",
+      "rou2_He=0.10204\n",
+      "beta_He=-(rou1_He-rou2_He)/(rou1_He*(T1_He-T2_He))\n",
+      "\n",
+      "#REsult\n",
+      "print\"The volumetric thermal expansion coefficient calculated for Freon-12 is \",round(beta_Fr,6),\"1/K\"\n",
+      "print\"The error introduced in the case of Freon-12 is  percent\",round(error_Fr,0),\"percent\"\n",
+      "print\"The volumetric thermal expansion coefficient calculated for Freon-12 is \",round(beta_He,6),\"1/K\"\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The volumetric thermal expansion coefficient calculated for Freon-12 is  0.001811 1/K\n",
+        "The error introduced in the case of Freon-12 is  percent 31.0 percent\n",
+        "The volumetric thermal expansion coefficient calculated for Freon-12 is  0.002087 1/K\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file