Added(A)/Deleted(D) following books

 A  Heat_Transfer_Principles_And_Applications_by_Dutta/README.txt
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch10.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch11.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch2.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch3.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch4.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch5.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch6.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch7.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch8.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/ch9.ipynb
A  Heat_Transfer_Principles_And_Applications_by_Dutta/screenshots/10.png
A  Heat_Transfer_Principles_And_Applications_by_Dutta/screenshots/5.png
A  Heat_Transfer_Principles_And_Applications_by_Dutta/screenshots/51.png
A  Heat_Transfer_in_SI_units_by_Holman/Chapter1.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter10.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter11.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter2.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter4.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter5.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter6.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter7.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter8.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/Chapter9.ipynb
A  Heat_Transfer_in_SI_units_by_Holman/README.txt
A  Heat_Transfer_in_SI_units_by_Holman/screenshots/9.1.png
A  Heat_Transfer_in_SI_units_by_Holman/screenshots/9.2.png
A  Heat_Transfer_in_SI_units_by_Holman/screenshots/9.4.png
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter1.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter2.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter3.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter4.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter5.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter6.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter7.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter8.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/Chapter9.ipynb
A  Power_Electronics_Principles_and_Applications_by_Jacob/README.txt
A  Power_Electronics_Principles_and_Applications_by_Jacob/screenshots/4.png
A  Power_Electronics_Principles_and_Applications_by_Jacob/screenshots/5.png
A  Power_Electronics_Principles_and_Applications_by_Jacob/screenshots/6.png
A  sample_notebooks/AviralYadav/Chapter5.ipynb

1 files changed, 326 insertions, 0 deletions

diff --git a/Power_Electronics_Principles_and_Applications_by_Jacob/Chapter8.ipynb b/Power_Electronics_Principles_and_Applications_by_Jacob/Chapter8.ipynb
new file mode 100644
index 00000000..7cf6b405
--- /dev/null
+++ b/Power_Electronics_Principles_and_Applications_by_Jacob/Chapter8.ipynb
@@ -0,0 +1,326 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 8: Thyristors"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 8.3,Page 397"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "inductance is 6.22 microH\n",
+      "load impedence at angle 90 degree is 0.00195 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding inductance,load impedence\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=220.0;#line voltage\n",
+    "f=50.0;#hertz\n",
+    "R=80.0;#load resistance\n",
+    "K=50.0;#di/dt\n",
+    "\n",
+    "#calculation\n",
+    "L=V*2**.5/K;\n",
+    "Z=2*pi*f*L;\n",
+    "\n",
+    "#result\n",
+    "print \"inductance is\",round(L,2),\"microH\"\n",
+    "print \"load impedence at angle 90 degree is\",round(Z*1e-6,5), \"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 8.4,Page 400"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "minimum value of capacitor is 0.067 micfoF\n",
+      "\n",
+      "choose C=.1 micoF\n",
+      "capacitor impedence at angle -90degree is 31.83 ohm\n",
+      "Load current in mA at an angle 90 degrees is 6.91\n",
+      "Potential drop in V at an angle 90 degrees is 0.55\n",
+      "Power dissipated is 3 mW\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding capacitor,current\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=220.0;#line voltage\n",
+    "f=50.0;#hertz\n",
+    "R=80.0;#load resistance\n",
+    "K=75.0;#dv/dt\n",
+    "Vd=400.0;#DRM voltage\n",
+    "\n",
+    "\n",
+    "#calculation\n",
+    "C=Vd/R/K;\n",
+    "C1=.1;\n",
+    "Z=1/(2*pi*f*C1);\n",
+    "Iload=V/1000/(-Z*cos(180*pi/180)+R*round(cos(90*pi/180)));\n",
+    "Vload=Iload/1000*R;\n",
+    "P=Vload*Iload;\n",
+    "\n",
+    "#result\n",
+    "print \"minimum value of capacitor is\",round(C,3), \"micfoF\"\n",
+    "print('\\nchoose C=.1 micoF')\n",
+    "print \"capacitor impedence at angle -90degree is\",round(Z*1000,2), \"ohm\"\n",
+    "print \"Load current in mA at an angle 90 degrees is\",round(Iload,2)\n",
+    "print \"Potential drop in V at an angle 90 degrees is\",round(Vload,2)\n",
+    "print \"Power dissipated is\",int(P), \"mW\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 8.5,Page 402"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "snubbing resistnce is 7.39 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding snubbing resistance\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=220;#line voltage\n",
+    "f=50;#hertz\n",
+    "R=80;#load resistance\n",
+    "I=46;#TSM current\n",
+    "\n",
+    "#calculation\n",
+    "Rs=V*2**.5/(I-V*2**.5/R);\n",
+    "\n",
+    "#result\n",
+    "print \"snubbing resistnce is\",round(Rs,2), \"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 8.6,Page 414"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "line period is 16.67 ms\n",
+      "half-cycle time is 8.333 ms\n",
+      "no. of cycles is 10.0\n",
+      "voltage for t1 is 54.0 V\n",
+      "power for t1 is 291.6 W\n",
+      "voltage for t2 is 100.0 V\n",
+      "voltage for t2 is 1000.0 W\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding voltage , power and cycles\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "R=10.0;#load\n",
+    "V=120.0;#rms voltage\n",
+    "f=60.0;#hertz\n",
+    "T=83.3;#ms\n",
+    "t1=15;#ms\n",
+    "t2=55;#ms\n",
+    "\n",
+    "#calculation\n",
+    "Tl=1/f;\n",
+    "Th=Tl/2;\n",
+    "C=round(T/Th/100)*100;\n",
+    "D1=.2;\n",
+    "V1=round(V*D1**.5);\n",
+    "P1=V1**2/R;\n",
+    "D2=.7;\n",
+    "V2=round(V*D2**.5);\n",
+    "P2=V2**2/R;\n",
+    "\n",
+    "#result\n",
+    "print \"line period is\",round(Tl*1000,2), \"ms\"\n",
+    "print \"half-cycle time is\",round(Th*1000,3), \"ms\"\n",
+    "print \"no. of cycles is\",C/1000\n",
+    "print \"voltage for t1 is\",round(V1,3), \"V\"\n",
+    "print \"power for t1 is\",round(P1,3), \"W\"\n",
+    "print \"voltage for t2 is\",round(V2,3), \"V\"\n",
+    "print \"voltage for t2 is\",round(P2,3), \"W\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 8.8,Page 427"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "average voltage is 42.0 V\n",
+      "dc voltage is 41.0 V\n",
+      "\n",
+      "the markers indicae Vp=163V Vave=41\n",
+      "full-wave rms voltage is 108.0 V\n",
+      "rms voltage is 108.0 V\n",
+      "\n",
+      "the markers indicate Vp=169V ;Vave=106V\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding dc volatge,average voltage,rms voltage\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=120.0;#line voltage\n",
+    "A=60.0;#degree\n",
+    "D=0.35;\n",
+    "\n",
+    "#calculation\n",
+    "Va=D*V;\n",
+    "Vd=V*2**.5*(cos(A*pi/180)+1)/2/pi;\n",
+    "Vr=.9*V;\n",
+    "Vrms=V*(2**.5)*(.5*(pi-1.047)+.25*sin(2*A*pi/180))**.5/pi**.5;\n",
+    "\n",
+    "#result\n",
+    "print \"average voltage is\",round(Va,3), \"V\"\n",
+    "print \"dc voltage is\",round(Vd), \"V\"\n",
+    "print('\\nthe markers indicae Vp=163V Vave=41')\n",
+    "print \"full-wave rms voltage is\",round(Vr), \"V\"\n",
+    "print \"rms voltage is\",round(Vrms), \"V\"\n",
+    "print('\\nthe markers indicate Vp=169V ;Vave=106V')\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Example 8.9,Page 430"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "rms voltage is 141.18 V\n",
+      "double checked value of rms voltage is 141.18 V\n"
+     ]
+    }
+   ],
+   "source": [
+    "#finding rms voltage and double checked rms voltage\n",
+    "\n",
+    "#initialisation of variable\n",
+    "from math import pi,tan,sqrt,sin,cos,acos,atan\n",
+    "V=220.0;#line voltage\n",
+    "P=1.3;#kW\n",
+    "R=15.0;#ohm\n",
+    "\n",
+    "#calculation\n",
+    "Vr=round((P*1000*R)**.5);\n",
+    "D=Vr/V;\n",
+    "Vr=V*2**.5*(.5*(pi-1.710)+sin(196*pi/180)/4)**.5/pi**.5;\n",
+    "\n",
+    "#result\n",
+    "print \"rms voltage is\",round(Vr,2), \"V\"\n",
+    "print \"double checked value of rms voltage is\",round(Vr,2), \"V\""
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 2",
+   "language": "python",
+   "name": "python2"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}