1 files changed, 0 insertions, 41 deletions
diff --git a/Engineering_Heat_Transfer/CHAPTER1.ipynb b/Engineering_Heat_Transfer/CHAPTER1.ipynb
index d020ad30..9b33caee 100644
--- a/Engineering_Heat_Transfer/CHAPTER1.ipynb
+++ b/Engineering_Heat_Transfer/CHAPTER1.ipynb
@@ -27,23 +27,16 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determination of surface temperature on one side of a firewall\n",
       "\n",
-      "#Given\n",
       "k=9.4              # thermal conductivity in [BTU/hr.ft. \u02daRankine]\n",
       "q=6.3              # heat flux in [BTU/s. sq.ft]\n",
       "T1=350             # the outside surface temperature of one aide of the wall [\u02daF]\n",
       "\n",
-      "#Calculation\n",
-      "# converting heat flux into BTU/hr  sq.ft\n",
       "Q=6.3*3600         # [BTU/hr.sq.ft]\n",
       "dx=0.5             # thickness in [inch]\n",
-      "#converting distance into ft\n",
       "Dx=0.5/12.0          # thickness in [ft]\n",
-      "# solving for temeprature T2\n",
       "T2=T1-(Q*Dx/k)     # [\u02daF]\n",
       "\n",
-      "#Result\n",
       "print\"The required temperature on the other side of the firewall is \",round(T2,1),\"F\"\n"
      ],
      "language": "python",
@@ -71,19 +64,15 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determination of thermal conductivity of aluminium\n",
       "\n",
-      "#Given\n",
       "k_ss=14.4    #  thermal conductivity of stainless steel in [W/m.K]\n",
       "dt_ss=40     # [K]\n",
       "dt_al=8.65   # [K]\n",
       "dz_ss=1      # [cm]\n",
       "dz_al=3      # [cm]\n",
       "\n",
-      "#calculation\n",
       "k_al=k_ss*dt_ss*dz_al/(dt_al*dz_ss);# thermal conductivity of Al in [W/m.K]\n",
       "\n",
-      "#result\n",
       "print\"The thermal conductivity of aluminium is\",round(k_al,0),\"W/m.K\"\n"
      ],
      "language": "python",
@@ -111,19 +100,15 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determination of heat transferred by convection\n",
       "\n",
-      "#Given\n",
       "h_c=3               # convective coefficient in [BTU/hr.ft**2\n",
       "A=30*18             # Cross sectional area in ft**2\n",
       "T_w=140             # Roof surface temperature in degree Fahrenheit\n",
       "T_inf=85           # Ambient temperature in degree Fahrenheit\n",
       "\n",
-      "#Calculation\n",
       "dT= (T_w-T_inf)\n",
       "Q_c=h_c*A*dT       # Convective heat transfer in BTU/hr\n",
       "\n",
-      "#Result\n",
       "print\"The heat transferred by convection is\",round(Q_c,2),\"BTU/hr\"\n"
      ],
      "language": "python",
@@ -151,9 +136,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determining average film conductance\n",
       "\n",
-      "#Given\n",
       "D=0.0243            # diameter in meter\n",
       "L=0.2             # length in meter\n",
       "A=3.14*D*L           # cross-sectional area in sq.m\n",
@@ -164,12 +147,9 @@
       "Q=500.0              # volumetric flow rate in cc/s\n",
       "density=1000       # density of water in kg/cu.m\n",
       "\n",
-      "#calculation\n",
       "m=Q*density/10**6  # mass flowa rate in kg/s\n",
-      "# using definition of specific heat and Newton's law of cooling\n",
       "hc=m*cp*(T_b2-T_in)/(A*(T_w-T_in))\n",
       "\n",
-      "#result\n",
       "print\"The average film conductance is \",round(hc,0),\"W/sq.m. K\"\n"
      ],
      "language": "python",
@@ -197,9 +177,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determination of heat loss rate by radiation\n",
       "\n",
-      "#Given\n",
       "W=14         # width in ft\n",
       "L=30.0       # length in ft\n",
       "A=W*L        # area in ft**2\n",
@@ -207,12 +185,10 @@
       "T1=120+460   # driveway surface temperature  in degree Rankine\n",
       "T2=0        # space temperature assumed to be 0 degree Rankine\n",
       "\n",
-      "#Calculation\n",
       "sigma=0.1714*10**(-8)   # value of Stefan-Boltzmann's constant in BTU/(hr.ft**2.(degree Rankine)**4)\n",
       "e=0.9       # surface emissivity\n",
       "q=sigma*A*e*F_12*((T1)**4-(T2)**4);\n",
       "\n",
-      "#result\n",
       "print\"The heat loss rate by radiation is \",round(q,0),\"BTU/hr\"\n"
      ],
      "language": "python",
@@ -240,18 +216,14 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determination of radiation thermal conductance\n",
       "\n",
-      "#Given\n",
       "A=420.0              # area in sq.ft\n",
       "T1=580.0          # driveway surface temperature in degree Rankine\n",
       "T2=0               # surface temperature assumed to be 0 degree Rankine\n",
       "Qr=73320             # heat loss rate in BTU/hr\n",
       "\n",
-      "#calculation\n",
       "hr=Qr/(A*(T1-T2))  # radiation thermal conductance in BTU/(hr.ft**2.(degree Rankine)\n",
       "\n",
-      "#result\n",
       "print\"the radiation thermal conductance is  \",round(hr,2),\"BTU/(hr. sq.ft R)\"\n"
      ],
      "language": "python",
@@ -289,18 +261,13 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# Identification of all resistances and their values\n",
-      "# Estimation of heat transfer per unit area\n",
-      "# Determination of the inside and outside wall temperatures\n",
       "\n",
-      "#Given\n",
       "A=1.0                # assuming A=1 m**2 for convenience\n",
       "hc1_avg=15.0         # taking average of extreme values for hc [W/m**2.K]\n",
       "k=(0.38+0.52)/2.0    # thermal conductivity of common brick in W/M.k\n",
       "L=0.1                #10 cm converted into m\n",
       "Rk=(L/(k*A))         # resistance of construction material, assume common brick\n",
       "\n",
-      "#calcultion\n",
       "T_inf1=1000.0 # temperature of exhaust gases in K\n",
       "T_inf2=283.0 # temperature of ambient air in K\n",
       "Rcl=1/(hc1_avg*A)   # resistance on left side of wall [K/W]\n",
@@ -309,7 +276,6 @@
       "T_in=T_inf1-Rcl*q    #inlet temprature \n",
       "T_out=T_inf2+Rc2*q\n",
       "\n",
-      "#result\n",
       "print\"(b)\"\n",
       "print\"The resistance on left side of wall is \",round(Rcl,2),\"K/W\"\n",
       "print\"The resistance of construction material of wall is\",round(Rk,2),\"K/W\"\n",
@@ -319,7 +285,6 @@
       "print\"The inside wall temperature is \",round(T_in,0),\"K\"\n",
       "print\"The outside wall temperature is\",round(T_out,1),\"K\"\n",
       "\n",
-      "#Plot\n",
       "import matplotlib.pyplot as plt\n",
       "fig = plt.figure()\n",
       "ax = fig.add_subplot(111)\n",
@@ -408,9 +373,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "# determination of surface temperature\n",
       "\n",
-      "#Given\n",
       "k=0.604        # [BTU/(hr.ft.degree Rankine)]\n",
       "hc=3.0          # average value for natural convection in BTU/(hr.ft**2.degree Rankine)\n",
       "ew=0.93        \n",
@@ -421,12 +384,9 @@
       "T_inf=20+460    # temperature of ambient air in degree Rankine\n",
       "T_r=0           # assuming space temperature to be 0 degree Rankine\n",
       "\n",
-      "#Calculation\n",
-      "# LHS of the form a*Tw+b*Tw**4=c\n",
       "a=((k/L)+hc)       #Coefficient of Tw in the equation\n",
       "b=(sigma*ew*f_wr)  #Coefficient of Tw**4 in the equation\n",
       "c=(k*T1/L)+(hc*T_inf)+(sigma*f_wr*ew*T_r**4)  #right hans side of the equation\n",
-      "#Soving by try and error\n",
       "Tw1=470            #assumed first value of temprature\n",
       "LHS1=a*Tw1+b*Tw1**4\n",
       "Tw2=480            #assumed 2nd value of temprature\n",
@@ -438,7 +398,6 @@
       "Tw5=484.5            #assumed fifth value of temprature\n",
       "LHS5=a*Tw5+b*Tw5**4\n",
       "\n",
-      "#result\n",
       "print\"RHS\",round(c,1)\n",
       "print\"LHS at surface Temprature 1=\",round(LHS1,1)\n",
       "print\"LHS at surface Temprature 2=\",round(LHS2,1)\n",