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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