diff options
Diffstat (limited to 'Basic_And_Applied_Thermodynamics_by_P._K._Nag/Chapter9.ipynb')
| -rw-r--r--[-rwxr-xr-x] | Basic_And_Applied_Thermodynamics_by_P._K._Nag/Chapter9.ipynb | 78 |
1 files changed, 37 insertions, 41 deletions
diff --git a/Basic_And_Applied_Thermodynamics_by_P._K._Nag/Chapter9.ipynb b/Basic_And_Applied_Thermodynamics_by_P._K._Nag/Chapter9.ipynb index 91d540ce..ceef1a80 100755..100644 --- a/Basic_And_Applied_Thermodynamics_by_P._K._Nag/Chapter9.ipynb +++ b/Basic_And_Applied_Thermodynamics_by_P._K._Nag/Chapter9.ipynb @@ -40,7 +40,7 @@ } ], "source": [ - "\n", + "import math\n", "# At 1 MPa\n", "tsat = 179.91 # Saturation temperature in degree Celsius\n", "vf = 0.001127 # Specific volume of fluid in m**3/kg\n", @@ -67,7 +67,7 @@ }, { "cell_type": "code", - "execution_count": 1, + "execution_count": 2, "metadata": { "collapsed": false }, @@ -87,6 +87,7 @@ } ], "source": [ + "import math\n", "# Given that\n", "s = 6.76 # Entropy of saturated steam in kJ/kgK\n", "print \"\\n Example 9.2\"\n", @@ -107,7 +108,7 @@ }, { "cell_type": "code", - "execution_count": 2, + "execution_count": 3, "metadata": { "collapsed": false }, @@ -125,7 +126,7 @@ } ], "source": [ - "\n", + "import math\n", "v = 0.09 # Specific volume of substance at a point in m**3/kg\n", "vf = 0.001177 # Specific volume of fluid in m**3/kg\n", "vg = 0.09963 # Specific volume of gas in m**3/kg\n", @@ -153,7 +154,7 @@ }, { "cell_type": "code", - "execution_count": 6, + "execution_count": 4, "metadata": { "collapsed": false }, @@ -182,7 +183,7 @@ } ], "source": [ - "\n", + "import math\n", "Psat = 3.973 # Saturation pressure in MPa\n", "vf = 0.0012512 # specific volume of fluid in m**3/kg\n", "vg = 0.05013 # Specific volume of gas in m**3/kg\n", @@ -228,7 +229,7 @@ }, { "cell_type": "code", - "execution_count": 11, + "execution_count": 5, "metadata": { "collapsed": false }, @@ -245,7 +246,7 @@ } ], "source": [ - "\n", + "import math\n", "# At T = 40 degree\n", "Psat = 7.384 # Saturation pressure in kPa\n", "sf = 0.5725 # Entropy of fluid in kJ/kgK\n", @@ -272,7 +273,7 @@ }, { "cell_type": "code", - "execution_count": 2, + "execution_count": 6, "metadata": { "collapsed": false }, @@ -291,7 +292,7 @@ } ], "source": [ - "\n", + "import math\n", "h2 = 2716.2 # Enthalpy at turbine inlet in kJ/kg\n", "hf = 844.89 # Enthalpy of fluid in kJ/kg\n", "hfg = 1947.3 # Latent heat of vaporization in kJ/kg\n", @@ -313,7 +314,7 @@ }, { "cell_type": "code", - "execution_count": 3, + "execution_count": 7, "metadata": { "collapsed": false }, @@ -330,7 +331,7 @@ } ], "source": [ - "\n", + "import math\n", "# At 0.1Mpa, 110 degree\n", "h2 = 2696.2 # Enthalpy at turbine inlet in kJ/kg\n", "hf = 844.89 # Enthalpy of fluid in kJ/kg\n", @@ -357,7 +358,7 @@ }, { "cell_type": "code", - "execution_count": 4, + "execution_count": 8, "metadata": { "collapsed": false }, @@ -374,7 +375,7 @@ } ], "source": [ - "\n", + "import math\n", "# P = 1MPa\n", "vf = 0.001127 # specific volume of fluid in m**3/kg\n", "vg = 0.1944# specific volume of gas in m**3/kg\n", @@ -407,7 +408,7 @@ }, { "cell_type": "code", - "execution_count": 5, + "execution_count": 10, "metadata": { "collapsed": false }, @@ -417,23 +418,18 @@ "output_type": "stream", "text": [ "\n", - " Example 9.12\n" - ] - }, - { - "ename": "NameError", - "evalue": "name 'math' is not defined", - "output_type": "error", - "traceback": [ - "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m", - "\u001b[1;31mNameError\u001b[0m Traceback (most recent call last)", - "\u001b[1;32m<ipython-input-5-4824fe7bf0c8>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m()\u001b[0m\n\u001b[0;32m 14\u001b[0m \u001b[1;32mprint\u001b[0m \u001b[1;34m\"\\n Example 9.12\"\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 15\u001b[0m \u001b[0mV1\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mm\u001b[0m\u001b[1;33m*\u001b[0m\u001b[0mv1\u001b[0m \u001b[1;31m# total volume at point 1\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m---> 16\u001b[1;33m \u001b[0mVd\u001b[0m \u001b[1;33m=\u001b[0m \u001b[1;33m(\u001b[0m\u001b[0mmath\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mpi\u001b[0m\u001b[1;33m/\u001b[0m\u001b[1;36m4\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m*\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0md\u001b[0m\u001b[1;33m*\u001b[0m\u001b[1;36m1e-3\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m**\u001b[0m\u001b[1;36m2\u001b[0m\u001b[1;33m*\u001b[0m\u001b[0ml\u001b[0m\u001b[1;33m*\u001b[0m\u001b[1;36m1e-3\u001b[0m \u001b[1;31m# displaced volume\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m 17\u001b[0m \u001b[0mV2\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mV1\u001b[0m\u001b[1;33m+\u001b[0m\u001b[0mVd\u001b[0m \u001b[1;31m# Total volume at point 2\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m 18\u001b[0m \u001b[0mn\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mlog\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mP1\u001b[0m\u001b[1;33m/\u001b[0m\u001b[0mP2\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m/\u001b[0m\u001b[0mlog\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mV2\u001b[0m\u001b[1;33m/\u001b[0m\u001b[0mV1\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;31m# polytropic index\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n", - "\u001b[1;31mNameError\u001b[0m: name 'math' is not defined" + " Example 9.12\n", + "\n", + " The value of n is 1.23844995978\n", + "\n", + " The work done by the steam is 4.72026539673 kJ \n", + "\n", + " The heat transfer is -1.80091923775 kJ \n" ] } ], "source": [ - "\n", + "import math\n", "m = 0.02 # Mass of steam in Kg\n", "d = 280 # diameter of piston in mm\n", "l = 305 # Stroke length in mm\n", @@ -450,7 +446,7 @@ "V1 = m*v1 # total volume at point 1\n", "Vd = (math.pi/4)*(d*1e-3)**2*l*1e-3 # displaced volume\n", "V2 = V1+Vd # Total volume at point 2\n", - "n = log(P1/P2)/log(V2/V1) # polytropic index\n", + "n = math.log(P1/P2)/math.log(V2/V1) # polytropic index\n", "W12 = ((P1*V1)-(P2*V2))*1e6/(n-1) # work done\n", "print \"\\n The value of n is \",n\n", "print \"\\n The work done by the steam is \",W12/1e3 ,\"kJ \"\n", @@ -475,7 +471,7 @@ }, { "cell_type": "code", - "execution_count": 6, + "execution_count": 11, "metadata": { "collapsed": false }, @@ -495,7 +491,7 @@ } ], "source": [ - "\n", + "import math\n", "x1 = 1 # Steam quality in first vessel\n", "x2 = 0.8 # Steam quality in second vessel\n", "# at 0.2MPa\n", @@ -551,7 +547,7 @@ }, { "cell_type": "code", - "execution_count": 7, + "execution_count": 12, "metadata": { "collapsed": false }, @@ -574,7 +570,7 @@ } ], "source": [ - "\n", + "import math\n", "# At 6 MPa, 400 degree\n", "h1 = 3177.2 # Enthalpy in kJ/kg\n", "s1 = 6.5408 #Entropy in kJ/kgK\n", @@ -614,7 +610,7 @@ }, { "cell_type": "code", - "execution_count": 8, + "execution_count": 13, "metadata": { "collapsed": false }, @@ -637,7 +633,7 @@ } ], "source": [ - "\n", + "import math\n", "# At 25 bar, 350 degree\n", "h1 = 3125.87 # Enthalpy in kJ/kg\n", "s1 = 6.8481# Entropy in kJ/kgK\n", @@ -691,7 +687,7 @@ }, { "cell_type": "code", - "execution_count": 9, + "execution_count": 14, "metadata": { "collapsed": false }, @@ -714,7 +710,7 @@ } ], "source": [ - "\n", + "import math\n", "# At dead state of 1 bar, 300K\n", "u0 = 113.1 # Internal energy in kJ/kg\n", "h0 = 113.2 # Enthalpy in kJ/kg\n", @@ -775,7 +771,7 @@ }, { "cell_type": "code", - "execution_count": 10, + "execution_count": 15, "metadata": { "collapsed": false }, @@ -803,7 +799,7 @@ } ], "source": [ - "\n", + "import math\n", "# Given\n", "th1 = 90.0 # Inlet temperature of hot water in degree Celsius\n", "tc1 = 25.0# Inlet temperature of cold water in degree Celsius\n", @@ -866,7 +862,7 @@ }, { "cell_type": "code", - "execution_count": 26, + "execution_count": 16, "metadata": { "collapsed": false }, @@ -883,7 +879,7 @@ } ], "source": [ - "\n", + "import math\n", "m = 50.0# mass flow rate in kg/h\n", "Th = 23.0 # Home temperature in degree Celsius\n", "# State 1\n", |