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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:b620865a516deeb75cd703005b53698c7a7013658cab02400acc0bf08c43a5d1"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 17 - Internal-combustion engines"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 1 - Pg 358"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#calculate the indicated efficiency, brake thermal efficiency in both cases\n",
+      "#Initalization of variables\n",
+      "hp1=2000. #bhp\n",
+      "m=792. #lb/hr\n",
+      "ex=0.5\n",
+      "hp2=210.\n",
+      "hv=18900. #Btu/lb\n",
+      "etth=51.3\n",
+      "#calculations\n",
+      "ihp=hp1+hp2\n",
+      "ietat= ihp*2544/(m*hv) *100\n",
+      "betat=ietat*hp1/ihp\n",
+      "betat2=hp1*2544/(m*hv) *100\n",
+      "ietae=ietat/etth *100\n",
+      "betae=betat/etth *100\n",
+      "brake= ietae*hp1/ihp\n",
+      "#results\n",
+      "print '%s %.1f %s' %(\"Indicated efficiency =\",ietat,\"percent\")\n",
+      "print '%s %.1f %s' %(\"\\n Brake thermal efficiency =\",betat,\" percent\")\n",
+      "print '%s %.1f %s' %(\"\\n In case 2, Brake thermal efficiency =\",betat2,\"percent\")\n",
+      "print '%s %.1f %s' %(\"\\n Indicated thermal efficiency =\",ietae,\" percent\")\n",
+      "print '%s %.1f %s' %(\"\\n Brake engine efficiency =\",betae,\" percent\")\n",
+      "print '%s %.1f %s' %(\"\\n In case 2, Brake engine efficiency =\",brake,\"percent\")\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Indicated efficiency = 37.6 percent\n",
+        "\n",
+        " Brake thermal efficiency = 34.0  percent\n",
+        "\n",
+        " In case 2, Brake thermal efficiency = 34.0 percent\n",
+        "\n",
+        " Indicated thermal efficiency = 73.2  percent\n",
+        "\n",
+        " Brake engine efficiency = 66.3  percent\n",
+        "\n",
+        " In case 2, Brake engine efficiency = 66.3 percent\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 2 - Pg 361"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#calculate the indicated mep\n",
+      "#Initalization of variables\n",
+      "J=778.\n",
+      "o2=12.5\n",
+      "theo=0.95\n",
+      "N=56.5\n",
+      "R0=1545.\n",
+      "T=540. #R\n",
+      "p=14. #psia\n",
+      "LHV=2368089. #Btu/lb\n",
+      "ther=39.4\n",
+      "iep=0.78\n",
+      "ve=0.8\n",
+      "#calculations\n",
+      "Ar=o2/0.21 *theo\n",
+      "vol=N*R0*T/(144*p)\n",
+      "hv=(LHV -17730)/LHV\n",
+      "ithep=iep*ther\n",
+      "pd=ithep/100 *ve *100.5\n",
+      "mep=J*pd\n",
+      "#results\n",
+      "print '%s %d %s' %(\"Indicated mep =\",mep,\"lb/sq ft\")\n",
+      "print '%s' %(\"The answer might differ from textbook due to rounding off error\")"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Indicated mep = 19223 lb/sq ft\n",
+        "The answer might differ from textbook due to rounding off error\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file