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-{

- "metadata": {

-  "name": ""

- },

- "nbformat": 3,

- "nbformat_minor": 0,

- "worksheets": [

-  {

-   "cells": [

-    {

-     "cell_type": "heading",

-     "level": 1,

-     "metadata": {},

-     "source": [

-      "Chapter 1: Introduction and Basic Concepts"

-     ]

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-2, Page No.8"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#Given values\n",

-      "p=850;# density in kg/m^3\n",

-      "V=2;  # volumne of tank in m^3\n",

-      "\n",

-      "#Calculations\n",

-      "m=p*V;# mass, density and volumne corealtion\n",

-      "\n",

-      "#Result\n",

-      "print 'The amount of oil in tank is %i kg' %round(m,0)\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The amount of oil in tank is 1700 kg\n"

-       ]

-      }

-     ],

-     "prompt_number": 8

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-3, Page No.9"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#Constants used\n",

-      "g=32.174;# gravitational constant in ft/s^2\n",

-      "\n",

-      "#given values\n",

-      "m=1; # mass of 1.00 lbm is subjected to standard earth gravity\n",

-      "\n",

-      "#Calculations\n",

-      "w=(m*g)/g; # weight is mass times the local value of gravitational acceleration\n",

-      "#dimensionally the above equation is represented as lbm * ft/s^2 * (lbf/ft/s^2)\n",

-      "\n",

-      "#Result\n",

-      "print 'The weight on earth is %i lbf' %w\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The weight on earth is 1 lbf\n"

-       ]

-      }

-     ],

-     "prompt_number": 3

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-4, Page No.21"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "# Example 1.4\n",

-      "\n",

-      "# Given values\n",

-      "Tc=10; #change in temp in Celcius\n",

-      "\n",

-      "# Calculations\n",

-      "Tk=Tc;\n",

-      "Tr=1.8*Tk;#conversion scale of temperature change from K to R\n",

-      "Tf=Tr;\n",

-      "# calculated using the corealtions b/w these scales\n",

-      "\n",

-      "#Results\n",

-      "print 'the corresponding change is %i K' %Tk\n",

-      "print 'the corresponding change is %i R' %Tr\n",

-      "print 'the corresponding change is %i F' %Tf\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "the corresponding change is 10 K\n",

-        "the corresponding change is 18 R\n",

-        "the corresponding change is 18 F\n"

-       ]

-      }

-     ],

-     "prompt_number": 4

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-5, Page No.23"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#Given values\n",

-      "Patm=14.5; #atmospheric pressure in psi\n",

-      "Pvac=5.8;  #vacuum gage reading in psi\n",

-      "\n",

-      "#Calculations\n",

-      "Pabs=Patm-Pvac;#pressure in vaccumm is always treated to be negative\n",

-      "\n",

-      "#Results\n",

-      "print'the absolute pressure in the chamber %f psi'%round(Pabs,1)\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "the absolute pressure in the chamber 8.700000 psi\n"

-       ]

-      }

-     ],

-     "prompt_number": 14

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-6, Page No.26"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#Constants used\n",

-      "pw=1000; # density of water in kg/m^3;\n",

-      "g=9.81; # acceleration due to gravity in m/s^2;\n",

-      " \n",

-      "#Given values\n",

-      "SG=0.85;# specific gravity of manometric fluid\n",

-      "h=0.55;# converting height from cm to m\n",

-      "Patm=96;# atmospheric pressure in kPa\n",

-      "\n",

-      "# Calculations\n",

-      "p=SG*pw;\n",

-      "Ptank=Patm+(p*g*h/1000); # calculating pressure using liquid at same height have same pressure\n",

-      "\n",

-      "#Results\n",

-      "print 'absolute pressure in tank %f kPa' %round(Ptank,1)\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "absolute pressure in tank 100.600000 kPa\n"

-       ]

-      }

-     ],

-     "prompt_number": 5

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-7, Page No.28"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#Constants used\n",

-      "g=9.81;#acceleration due to gravity in m/s^2;\n",

-      "\n",

-      "#Given values\n",

-      "h1=0.1;# distance b/w point 1 at air-water interface and point 2 at mercury-air interface in m\n",

-      "h2=0.2;# distance b/w oil-water interface and  mercury-oil interface in m\n",

-      "h3=0.35;# distance b/w air-mercury interface and  mercury-oil interface in m\n",

-      "pw=1000;# density of water in kg/m^3\n",

-      "pHg=13600;# density of mercury in kg/m^3\n",

-      "poil=800;# density of oil in kg/m^3\n",

-      "Patm=85.6;# atmospheric pressure in kPa\n",

-      "\n",

-      "#Calculation\n",

-      "P1=Patm-(pw*g*h1+poil*g*h2-pHg*g*h3)/1000;#calculating pressure using liquid at same height have same pressure\n",

-      "\n",

-      "#Results\n",

-      "print 'the air pressure in tank %i kPa' %round(P1)\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "the air pressure in tank 130 kPa\n"

-       ]

-      }

-     ],

-     "prompt_number": 11

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-8, Page No.31"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#Constants used\n",

-      "g=9.81;# acceleration due to gravity in m/s^2;\n",

-      "\n",

-      "#Given values\n",

-      "pHg=13570;# density of mercury at 10 C in kg/m^3\n",

-      "h=0.74;# converting barometric reading into m from mm\n",

-      "\n",

-      "#Calculationa\n",

-      "Patm=pHg*g*h/1000;# standard  pressure formula\n",

-      "\n",

-      "#Results\n",

-      "print 'the atmospheric pressure %f kPa' %round(Patm,1)\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "the atmospheric pressure 98.500000 kPa\n"

-       ]

-      }

-     ],

-     "prompt_number": 12

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-9, Page No.31"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "#constants used\n",

-      "g=9.81;#acceleration due to gravity in m/s^2;\n",

-      "\n",

-      "#given values\n",

-      "m=60;# mass of piston in kg\n",

-      "Patm=0.97;# atmospheric pressure in kPa\n",

-      "A=0.04;# cross-sectional area in m^2\n",

-      "\n",

-      "#calculation\n",

-      "P=Patm+(m*g/A)/100000;# standard  pressure formula\n",

-      "print 'The pressure inside the cylinder %f bar' %round(P,2)\n",

-      "#The volume change will have no effect on the free-body diagram drawn in part (a), and therefore the pressure inside the cylinder will remain the same\n",

-      "print('If some heat is transferred to the gas and its volume is doubled, there is no change in pressure');\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "The pressure inside the cylinder 1.120000 bar\n",

-        "If some heat is transferred to the gas and its volume is doubled, there is no change in pressure\n"

-       ]

-      }

-     ],

-     "prompt_number": 16

-    },

-    {

-     "cell_type": "heading",

-     "level": 2,

-     "metadata": {},

-     "source": [

-      "Example 1-10, Page No.32"

-     ]

-    },

-    {

-     "cell_type": "code",

-     "collapsed": false,

-     "input": [

-      "import math\n",

-      "from scipy.integrate import quad \n",

-      "from pylab import *\n",

-      "\n",

-      "#Constants used\n",

-      "g=9.81;#acceleration due to gravity in m/s^2;\n",

-      "\n",

-      "#Given values\n",

-      "p=1040;# density on the water surface in kg/m^3\n",

-      "h1=0.8;# thickness of surface zone\n",

-      "H=4;# thickness of gradient zone\n",

-      "x0=0.0;# lower limit of integration\n",

-      "x1=4.0;# upper limit of integration\n",

-      "\n",

-      "\n",

-      "#Calculations\n",

-      "P1=p*g*h1/1000;#standard  pressure determination formula\n",

-      "#P2 = integration of the exp. p*g*(math.sqrt(1+(math.tan(math.pi*z/4/H)^2))) b/w 0-4\n",

-      "def intgrnd1(z): \n",

-      " return (p*g*(math.sqrt(1+(math.tan(math.pi*(z)/4/H)**2))) )#integrant\n",

-      "P2, err = quad(intgrnd1, x0, x1) \n",

-      "P2=P2/1000;#converting into kPa\n",

-      "P=P1+P2;\n",

-      "\n",

-      "#Results\n",

-      "print 'the gage pressure at the bottom of gradient zone %f kPa' %round(P)\n"

-     ],

-     "language": "python",

-     "metadata": {},

-     "outputs": [

-      {

-       "output_type": "stream",

-       "stream": "stdout",

-       "text": [

-        "the gage pressure at the bottom of gradient zone 54.000000 kPa\n"

-       ]

-      }

-     ],

-     "prompt_number": 17

-    }

-   ],

-   "metadata": {}

-  }

- ]

-}
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