removing problem statements

14 files changed, 74 insertions, 177 deletions

diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_1.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_1.ipynb
index 62ff8fe0..7c755d06 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_1.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_1.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:711f56c3e3096fd85ba076900a2d5d1fac9fbc28d9c6a8c278c36feee7744bc6"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,8 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
-      "# Find Wall Heat Loss - Problem of Pure Conduction Unidimensional Heat\n",
+      "\n",
       "\n",
       "L=.15;   \t\t \t\t\t#[m] - Thickness of conducting wall\n",
       "delT = 1400. - 1150.;  \t\t#[K] - Temperature Difference across the Wall\n",
@@ -70,8 +70,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
-      "# Find a) Emissive Power & Irradiation b)Total Heat Loss per unit length \n",
+      " \n",
       "import math\n",
       "d=.07;    \t\t\t\t\t\t\t\t\t#[m] - Outside Diameter of Pipe\n",
       "Ts = 200+273.15;  \t\t\t\t\t\t\t#[K] - Surface Temperature of Steam\n",
@@ -124,7 +123,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "# Find Velocity of Coolant Fluid\n",
       "import math\n",
@@ -183,7 +182,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "# Find Skin Temperature & Heat loss rate\n",
       "import math\n",
@@ -259,7 +258,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "%pylab inline\n",
       "# (a) Curie Temperature for h = 15 W/m^2\n",
       "# (b) Value of h for cure temp = 50 deg C\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_10.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_10.ipynb
index e31dd90e..bb6c3320 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_10.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_10.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:1967d26762283e30e4854c10c803a16851680afbc2e91b1d3cee7d16421cae2c"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,11 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Power Required by electruc heater to cause boiling\n",
-      "# Rate of water evaporation due to boiling\n",
-      "# Critical Heat flux corresponding to the burnout point\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 118+273.    \t\t\t\t;#[K] Surface Temperature\n",
@@ -97,9 +94,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Power Dissipation per unith length for the cylinder, qs\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 255+273.    \t\t\t\t\t;#[K] Surface Temperature\n",
@@ -169,9 +164,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Heat Transfer and Condensation Rates\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 50+273.    \t\t\t;#[K] Surface Temperature\n",
@@ -238,9 +231,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Condensation rate per unit length of tubes\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 25+273.    \t\t\t\t\t;#[K] Surface Temperature\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_11.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_11.ipynb
index 97945574..b185ed9e 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_11.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_11.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:ab6cb233ee6afa8e8253b650d9b15125740d73ba571b9d5b3c9431dc16631f9d"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,9 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Tube Length to achieve a desired hot fluid temperature\n",
       "import math\n",
       "#Operating Conditions\n",
       "Tho = 60+273    \t\t\t\t\t\t\t;#[K] Hot Fluid outlet Temperature\n",
@@ -110,10 +109,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Exterior Dimensions of heat Exchanger\n",
-      "# Pressure drops within the plate-type Heat exchanger with N=60 gaps\n",
       "import math\n",
       "import numpy\n",
       "from numpy import linspace\n",
@@ -236,7 +232,6 @@
      "collapsed": false,
      "input": [
       "\n",
-      "# Required gas side surface area\n",
       "\n",
       "#Operating Conditions\n",
       "Tho = 100+273.    \t\t\t\t;#[K] Hot Fluid outlet Temperature\n",
@@ -300,9 +295,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Heat Transfer Rate and Fluid Outlet Temperatures\n",
       "\n",
       "#Operating Conditions\n",
       "Thi = 250+273.    \t\t\t;#[K] Hot Fluid intlet Temperature\n",
@@ -375,10 +368,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Outlet Temperature of cooling Water\n",
-      "# Tube length per pass to achieve required heat transfer\n",
       "import math\n",
       "#Operating Conditions\n",
       "q = 2*math.pow(10,9)       \t \t\t\t;#[W] Heat transfer Rate\n",
@@ -448,9 +438,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Gas-side overall heat transfer coefficient. Heat exchanger Volume\n",
       "import math\n",
       "#Operating Conditions\n",
       "hc = 1500.        \t\t\t\t\t\t\t\t;#[W/m^2.K] Coefficient of heat transfer for outer surface\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_12.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_12.ipynb
index 25268933..9072d911 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_12.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_12.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:304ae148e504c8ed241176c62ed1b8e5847971fcae322bbded93788c7a0511f7"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,7 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# a) Intensity of emission in each of the three directions\n",
@@ -106,7 +107,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "import math\n",
       "import matplotlib.pyplot as plt\n",
       "%pylab inline\n",
@@ -168,7 +169,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Spectral Emissive Power of a small aperture on the enclosure\n",
@@ -239,7 +240,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "import scipy\n",
@@ -295,7 +296,6 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
       "import math\n",
       "# Total hemispherical emissivity\n",
@@ -376,7 +376,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "import scipy\n",
@@ -453,7 +453,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "import matplotlib\n",
@@ -533,7 +533,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "import math\n",
       "# Total emissivity of cover glass to solar radiation\n",
       "\n",
@@ -579,7 +579,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Total hemispherical emissivity of fire brick wall\n",
@@ -648,7 +648,6 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
       "import math\n",
       "# Total hemispherical absorptivity and emissivity of sphere for initial condition\n",
@@ -712,7 +711,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Useful heat removal rate per unit area\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_13.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_13.ipynb
index 2b72fa5a..908362f2 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_13.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_13.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:9fc173b0d74248d2dec7a4473e85a2d5663ed8938149f46e30b414437d81486f"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,7 +28,6 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
       "\n",
       "# View Factors of known surface Geometries\n",
@@ -88,7 +88,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "import numpy\n",
@@ -161,7 +161,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Power required to maintain prescribed temperatures\n",
@@ -213,7 +213,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Heat gain by the fluid passing through the inner tube\n",
@@ -268,7 +268,6 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
       "import math\n",
       "# Rate at which heat must be supplied per unit length of duct\n",
@@ -330,7 +329,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Rate at which heat must be supplied \n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_14.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_14.ipynb
index 3ce70f77..6d3fd60d 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_14.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_14.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:23004d8fb27d32537f04ac072677553656b3c1c397997f3010334189894b890f"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,7 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "\n",
       "import math\n",
       "# Molar and mass fluxes of hydrogen and the relative values of the mass and thermal diffusivities for the three cases\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_2.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_2.ipynb
index a3d2e96a..0de7a462 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_2.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_2.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:9a142a6e8cf26110d3ff9748fc8583daf04a172f1232dcfc8ee5e1fe6a9f5ec3"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,9 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Find Value for Thermal Diffusivity\n",
       "\n",
       "def alpha(p, Cp, k):\n",
       "    a=k/(p*Cp); #[m^2/s]\n",
@@ -107,10 +106,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Analyze a Situation of Non-Uniform Temperature Distribution\n",
-      "#T(x) = a + bx +cx^2   T-degC & x-meter\n",
       "\n",
       "a = 900.;    \t\t\t#[degC]\n",
       "b = -300.;   \t\t\t#[degC/m]\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_3.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_3.ipynb
index 80e4f209..4cf59010 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_3.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_3.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:ca8839cd8008ad44590694ea2ad13ce425811997673bf9c8b6a013454026c154"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,9 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Find Skin Temperature & Aerogel Insulation Thickness \n",
       "import math\n",
       "A=1.8;    \t\t\t\t\t# [m^2] Area for Heat transfer i.e. both surfaces\n",
       "Ti = 35+273.;  \t\t\t\t#[K] - Inside Surface Temperature of Body\n",
@@ -104,9 +103,6 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
-      "\n",
-      "# Chip Operating Temperature\n",
       "import math\n",
       "Tf = 25+273.; \t\t\t#[K] - Temperature of Fluid Flow\n",
       "L=.008;    \t\t\t\t#[m] - Thickness of Aluminium \n",
@@ -155,9 +151,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Find Thermal conductivity of Carbon Nanotube\n",
       "import math\n",
       "D = 14 * math.pow(10,-9);    \t\t\t# [m]Dia of Nanotube\n",
       "s = 5*math.pow(10,-6);       \t\t\t# [m]Distance between the islands\n",
@@ -227,9 +221,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Temperature Distribution And Heat rate\n",
       "import math\n",
       "import numpy\n",
       "from numpy import linspace\n",
@@ -287,9 +279,8 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
+      "\n",
       "%pylab inline\n",
-      "# Critical Thickness\n",
       "import math\n",
       "import numpy\n",
       "from numpy import linspace\n",
@@ -367,9 +358,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
-      "\n",
-      "# Heat conduction through Spherical Container \n",
+      " \n",
       "import math\n",
       "k = .0017;    \t\t\t\t\t\t#[W/m.K] From Table A.3, Silica Powder at Temp 300K\n",
       "h = 5;       \t\t\t\t\t\t#[W/m^2.K]\n",
@@ -430,9 +419,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Composite Plane wall\n",
       "import math\n",
       "\n",
       "Tsurr = 30+273.;   \t\t\t\t\t\t#[K] Temperature of surrounding Water\n",
@@ -489,7 +476,7 @@
      "input": [
       "#Variable Initialization\n",
       "%pylab inline\n",
-      "# Heat conduction through Rod\n",
+      "\n",
       "import math\n",
       "import numpy\n",
       "from numpy import linalg\n",
@@ -595,9 +582,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Study of motorcycle finned cylinder\n",
       "import math\n",
       "H = .15;   \t\t\t\t\t\t#[m] height\n",
       "k = 186;    \t\t\t\t\t#[W/m.K] alumunium at 400K\n",
@@ -659,9 +644,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Study of Fuel-cell fan system\n",
       "import math\n",
       "Wc =.05;    \t\t\t\t#[m] width\n",
       "H = .026;  \t \t\t\t\t#[m] height\n",
@@ -737,9 +720,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Heat loss from body & temp at inner surface\n",
       "import math\n",
       "hair = 2.;     \t\t\t#[W/m^2.K] Heat convection coefficient air\n",
       "hwater = 200.;     \t\t#[W/m^2.K] Heat convection coefficient water\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_4.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_4.ipynb
index 70b74f06..9f1825ca 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_4.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_4.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:d0883c349e6026c1b16a5b0a707e34ddc2310403ffaeb85c40a328facdc14025"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,9 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Thermal resistance of wire coating associated with peripheral variations in coating thickness\n",
       "import math\n",
       "d = .005;        \t\t\t\t\t\t\t\t\t\t#[m] Diameter of wire\n",
       "k = .35;         \t\t\t\t\t\t\t\t\t\t#[W/m.K] Thermal Conductivity\n",
@@ -77,9 +76,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Temperature Distribution and Heat rate per unit length\n",
       "import math\n",
       "import numpy\n",
       "from numpy import linalg\n",
@@ -158,9 +155,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Temperature Field and Rate of Heat Transfer\n",
       "import math\n",
       "import numpy\n",
       "from numpy import linalg\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_5.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_5.ipynb
index a8498107..62378c37 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_5.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_5.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:eb7d44d988c21bed8e236b270188ea83d6cab7b82a702d6c6ac0888d3618efff"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,9 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Junction Diameter and Time Calculation to attain certain temp\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -87,10 +86,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Steady State Temperature of junction\n",
-      "# Time Required for thermocouple to reach a temp that is within 1 degc of its steady-state value\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -160,7 +156,6 @@
      "input": [
       "#Variable Initialization\n",
       "\n",
-      "# Total Time t required for two step process\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -236,9 +231,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Radial System with Convection\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -319,9 +312,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Two step cooling process of Sphere\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -385,11 +376,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
-      "\n",
-      "# Burial Depth\n",
       "\n",
-      "#Operating Conditions\n",
       "import math\n",
       "k = .52;         \t\t#[W/m.K] Thermal Conductivity \n",
       "rho = 2050;        \t\t#[kg/m^3] Density\n",
@@ -436,9 +423,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Spherical Tumor\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -514,9 +499,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Thermal Conductivity of Nanostructured material\n",
       "import numpy\n",
       "import math\n",
       "from numpy import linalg\n",
@@ -582,9 +565,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Temperature distribution 1.5s after a change in operating power\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -634,11 +615,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#Variable Initialization\n",
       "\n",
-      "# Using Explicit Finite Difference method, determine temperatures at the surface and 150 mm from the surface after an elapsed time of 2 min\n",
-      "# Repeat the calculations using the Implicit Finite Difference Method\n",
-      "# Determine the same temperatures analytically\n",
       "import math\n",
       "#Operating Conditions\n",
       "a\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_6.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_6.ipynb
index a8c5a4a2..56b06d80 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_6.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_6.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:4c9f19718c00e3bd942cd652731d5120db18676ef29029938745f62980f5cff9"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,8 +28,6 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Napthalene Sublimation rate per unit length\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -72,8 +71,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Convection Mass Transfer coefficient \n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "\n",
@@ -116,8 +114,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Convection Mass Transfer coefficient \n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 1;        \t\t\t\t#[m/s]  Velocity of water\n",
@@ -179,9 +176,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Heat Flux to blade when surface temp is reduced\n",
-      "# Heat flux to a larger turbine blade\n",
+      "\n",
       "\n",
       "#Operating Conditions\n",
       "v = 160;        \t\t\t\t#[m/s]  Velocity of air\n",
@@ -232,8 +227,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Water vapor conc and flux associated with the same location on larger surface of the same shape\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 100;        \t\t\t#[m/s]  Velocity of air\n",
@@ -296,8 +290,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Steady State Temperature of Beverage\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "Tsurr = 40+273.;    \t\t#[K] Surrounding Air Temperature\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_7.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_7.ipynb
index f8aa1a6f..b47e5d70 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_7.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_7.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:12137eba1f5bf47c0fd628804006f0ff8647777d41f9645050b549888507b91d"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,8 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Cooling rate per Unit Width of the Plate\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 10;            \t\t\t\t\t\t\t#[m/s] Air velocity\n",
@@ -83,8 +83,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Maximum Heater Power Requirement\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 60;            \t\t\t#[m/s] Air velocity\n",
@@ -172,8 +171,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Daily Water Loss\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 2;            \t\t\t#[m/s] Air velocity\n",
@@ -237,9 +235,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Convection Coefficient associated with operating conditions\n",
-      "# Convection Coefficient from an appropriate correlation\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 10;            \t\t\t#[m/s] Air velocity\n",
@@ -304,8 +300,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Convective Heat transfer to the canister and the additional heating needed\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 23;            \t\t\t\t#[m/s] Air velocity\n",
@@ -363,8 +358,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Time required to cool from Ti = 75 degC to 35 degC\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 10;            \t\t\t#[m/s] Air velocity\n",
@@ -423,9 +417,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Air side Convection coefficient and Heat rate\n",
-      "# pressure Drop\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "v = 6;            \t\t\t#[m/s] Air velocity\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_8.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_8.ipynb
index fac7e1bf..ec80846d 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_8.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_8.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:bcdb44fcb5c412a8fb12ecf8bc3409e5bc0d03dc35a4f7331daf1db849b5f7af"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,9 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Length of tube needed to achieve the desired outlet temperature\n",
-      "#Local convection coefficient at the outlet\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "m = .1;            #[kg/s] mass flow rate of water\n",
@@ -80,8 +79,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# average convection coefficient \n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "m = .25;            \t#[kg/s] mass flow rate of water\n",
@@ -128,9 +126,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Length of tube for required heating\n",
-      "# Surface temperature Ts at outlet section\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "m = .01;            #[kg/s] mass flow rate of water\n",
@@ -194,8 +190,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Length of Blood Vessel\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "um1 = .13;                  #[m/s] Blood stream\n",
@@ -281,9 +276,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Heat Loss from the Duct over the Length L, q \n",
-      "# Heat flux and suface temperature at x=L\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "m = .05;            \t#[kg/s] mass flow rate of water\n",
@@ -349,8 +342,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Time needed to bring the reactants to within 1 degC of processing temperature\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "T1 = 125+273.;    \t\t\t#[K] Chip Temperature 1\n",
@@ -483,8 +475,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Average mass trasnfer convection coefficient for the tube\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "m = .0003;            \t\t#[kg/s] mass flow rate of water\n",
diff --git a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_9.ipynb b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_9.ipynb
index 8bdfef75..449ae71c 100644
--- a/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_9.ipynb
+++ b/Fundamentals_of_Heat_and_Mass_Transfer/Chapter_9.ipynb
@@ -1,6 +1,7 @@
 {
  "metadata": {
-  "name": ""
+  "name": "",
+  "signature": "sha256:56bd333b1440dc978cb1a204c216290125fc0bef6769e6c73f6ac7af2e17116b"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -27,8 +28,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Boundary Layer thickness at trailing edge.\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 70+273.;    \t\t\t\t\t#[K] Surface Temperature\n",
@@ -84,8 +84,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Heat transfer by convection between screen and room air.\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 232+273.;    \t\t\t#[K] Surface Temperature\n",
@@ -140,8 +139,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Heat Loss from duct per meter of length\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 45+273.;    \t\t\t\t#[K] Surface Temperature\n",
@@ -200,8 +198,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Heat Loss from pipe per meter of length\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "Ts = 165+273.;    \t\t\t\t#[K] Surface Temperature\n",
@@ -255,9 +252,7 @@
      "cell_type": "code",
      "collapsed": false,
      "input": [
-      "#variable initialization\n",
-      "# Heat Loss from pipe per unit of length\n",
-      "# Heat Loss if air is filled with glass-fiber blanket insulation\n",
+      "\n",
       "import math\n",
       "#Operating Conditions\n",
       "To = 35+273.    \t\t\t;#[K] Shield Temperature\n",