{ "metadata": { "name": "" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter No - 1 : Introduction\n", " " ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.1- Page No : 6" ] }, { "cell_type": "code", "collapsed": false, "input": [ "from __future__ import division\n", "# Given data\n", "P_m = 760 # pressure of mercury in mm\n", "P_m_bar = P_m/750 # in bar\n", "P_W = 0.006867 # pressure of water in bar\n", "P = P_m_bar+P_W # in bar\n", "print \"The absolute pressure of gas = %0.3f bar \" %P" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The absolute pressure of gas = 1.020 bar \n" ] } ], "prompt_number": 1 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.2- Page No : 6" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "Rho = 13.6 \n", "g = 9.81 \n", "a = 760 # in mm\n", "b = 480 # in mm\n", "h = a-b # in mm\n", "P = (1000*Rho*g*h)/(1000) # in N/m**2\n", "P= int(P/100)*100 #in N/m**2\n", "print \"The absolute pressure = %0.f N/m**2 \" %P\n", "P = int(P /100) # in mbar\n", "print \"The absolute pressure = %0.f mbar \" %P" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The absolute pressure = 37300 N/m**2 \n", "The absolute pressure = 373 mbar \n" ] } ], "prompt_number": 2 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.3- Page No : 6" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "G_P = 30 # guage pressure of steam in bar\n", "P1 = 745 # in mm\n", "P1= P1/750 # in bar\n", "PressureInBoiler = G_P+P1 # in bar\n", "print \"The absolute pressure in the bioler =\",round(PressureInBoiler,3),\"bar\"\n", "P2 = 708.2 # in mm\n", "P2= P2/750 # in \n", "PressureInCond = P1-P2 # in bar\n", "print \"The absolute pressure in the Condenser = %0.4f bar \" %PressureInCond\n", "PressureInCond = round(PressureInCond*10**4)*10**1 # in N/m**2\n", "print \"The absolute pressure in the Condenser = %0.f N/m**2 \" %(PressureInCond)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The absolute pressure in the bioler = 30.993 bar\n", "The absolute pressure in the Condenser = 0.0491 bar \n", "The absolute pressure in the Condenser = 4910 N/m**2 \n" ] } ], "prompt_number": 3 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.4- Page No : 7" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "Rho = 0.78 # in kg/m**3\n", "g = 9.81 \n", "h = 3 # in m\n", "b = g*Rho*h*1000 # in N/m**2\n", "b = b * 10**-3 # in kN/m**2\n", "print \"The gauge pressure = %0.3f kN/m**2 \" %b" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The gauge pressure = 22.955 kN/m**2 \n" ] } ], "prompt_number": 4 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.5- Page No : 7" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "B_h = 755 # Barometric height in mm\n", "M_h= 240 # Manometer height in mm\n", "P = B_h+M_h # in mm \n", "P = P/750 # absolute pressure in bar\n", "P= P*10**5 # in N/m**2\n", "print \"The absolute pressure in the vessel = %0.4f MN/m**2 \" %(P*10**-6)\n", "print \"The absolute pressure in the vessel = %0.3f bar \" %(P*10**-5)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The absolute pressure in the vessel = 0.1327 MN/m**2 \n", "The absolute pressure in the vessel = 1.327 bar \n" ] } ], "prompt_number": 5 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.6- Page No : 12" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "T = 287 # in degree C\n", "T = T + 273 # in K\n", "print \"The temperature on absolute scale = %0.f K \" %T" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The temperature on absolute scale = 560 K \n" ] } ], "prompt_number": 6 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.7- Page No : 12" ] }, { "cell_type": "code", "collapsed": false, "input": [ "from math import sqrt\n", "# Given data\n", "\n", "a = 0.26 \n", "b = 5*10**-4 \n", "E = 10 # in mV\n", "T = (a/(2*b))*( sqrt(1+(4*E*b/a**2)) - 1 ) # in degree C\n", "print \"The unit of a will be mV/\u00b0C and the unit of b will be mV/\u00b0C**2\"\n", "print \"The Temperature = %0.2f degree C \" %T" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The unit of a will be mV/\u00b0C and the unit of b will be mV/\u00b0C**2\n", "The Temperature = 35.97 degree C \n" ] } ], "prompt_number": 10 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.8- Page No : 15" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "Q_w = 500 # quantity of water flowing in kg/minute\n", "T1 = 80 # in \u00b0 C\n", "T2 = 20 # in \u00b0C\n", "del_T = T1-T2 # in \u00b0C\n", "Spe_heat = 4.182 # in kJ/kg\n", "Q_h = Q_w*del_T*Spe_heat # in kJ/minute\n", "print \"Quantity of heat supplied to water in the economizer is\",int(Q_h),\"kJ/minute or\",round(Q_h*10**-3,2),\" MJ/minute\" " ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Quantity of heat supplied to water in the economizer is 125460 kJ/minute or 125.46 MJ/minute\n" ] } ], "prompt_number": 7 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.9- Page No : 15" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "CopperMass = 3 # in kg\n", "WaterMass= 6 # in kg\n", "Spe_heat_copper= 0.394 # in kJ/kg-K\n", "T1 = 90 # in degree C\n", "T2 = 20 # in degree C\n", "del_T = T1-T2 # in degree C\n", "H_C = CopperMass*Spe_heat_copper*del_T # heat required by copper in kJ\n", "Spe_heat_water= 4.193 # in kJ/kg-K\n", "H_W = WaterMass*Spe_heat_water*del_T # heat required by water in kJ\n", "H = H_C+H_W #heat required by vessel and water in kJ\n", "H = H * 10**-3 # in MJ\n", "print \"Heat required by vessel and water = %0.3f MJ \" %H" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Heat required by vessel and water = 1.844 MJ \n" ] } ], "prompt_number": 8 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "Example No : 1.10- Page No : 15" ] }, { "cell_type": "code", "collapsed": false, "input": [ "# Given data\n", "\n", "m = 18.2 #quantity of air supplied of coal in kg\n", "T1 = 200 # in degree C\n", "T2 = 18 # in degree C\n", "del_T = T1-T2 # in degree C\n", "Spe_heat = 1 # in kJ/kg-K\n", "Q_C = m*Spe_heat*del_T # in kJ\n", "print \"The Quantity of heat supplied per kg of coal = %0.1f kJ \" %Q_C" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "The Quantity of heat supplied per kg of coal = 3312.4 kJ \n" ] } ], "prompt_number": 9 } ], "metadata": {} } ] }