From 5e4af9aebb389109363666017f67e986e96a9906 Mon Sep 17 00:00:00 2001 From: Trupti Kini Date: Fri, 9 Sep 2016 23:30:25 +0600 Subject: 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 --- Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb | 228 +++++++++++++++++++++ 1 file changed, 228 insertions(+) create mode 100644 Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb (limited to 'Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb') diff --git a/Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb b/Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb new file mode 100644 index 00000000..7dd6ca44 --- /dev/null +++ b/Heat_Transfer_in_SI_units_by_Holman/Chapter3.ipynb @@ -0,0 +1,228 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Chapter 3 Steady State Conduction Multiple Dimension" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.1" + ] + }, + { + "cell_type": "code", + "execution_count": 1, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Heat lost by the pipe is 859.9 W\n" + ] + } + ], + "source": [ + "#Example Number 3.1\n", + "# Calculate the heat loss by the pipe\n", + "\n", + "# Variable declaration\n", + "\n", + "d = 0.15 \t\t\t# [m] diameter of pipe\n", + "r = d/2 \t\t\t# [m] radius of pipe\n", + "L = 4 \t\t\t\t# [m] length of pipe\n", + "Tp = 75\t\t\t\t# [degree celsius] pipe wall temperature\n", + "Tes = 5 \t\t\t# [degree celsius] earth surface temperature\n", + "k = 0.8\t\t\t\t# [W/m per deg C] thermal conductivity of earth \n", + "D = 0.20 \t\t\t# [m] depth of pipe inside earth\n", + "\n", + "\t# We may calculate the shape factor for this situation using equation given in \ttable 3-1 \n", + "\t\n", + "\t# since D<3*r\n", + "#Calculation\n", + "import math\n", + "S = (2*math.pi*L)/math.acosh(D/r) \t# [m] shape factor\n", + "\t# the heat flow is calculated from \n", + "q = k*S*(Tp-Tes) \t\t\t# [W]\n", + "\n", + "#Result\n", + "print\"Heat lost by the pipe is\",round(q,1),\"W\"" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.2" + ] + }, + { + "cell_type": "code", + "execution_count": 2, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Heat lost through the walls is: 8.592 kW\n" + ] + } + ], + "source": [ + "#Example Number 3.2 \n", + "# Calculate heat loss through the walls\n", + "\n", + "# VARIABLE DECLARATION\n", + "\n", + "a = 0.5 \t # [m] length of side of cubical furnace\n", + "Ti = 500 \t # [degree celsius] inside furnace temperature\n", + "To = 50 \t # [degree celsius] outside temperature\n", + "k = 1.04 \t # [W/m per degree celsius] thermal conductivity of fireclay brick \n", + "t = 0.10 \t # [m] wall thickness\n", + "A = a*a \t # [square meter] area of one face \n", + "\t\t # we compute the total shape factor by adding the shape factors \t\t \t for the walls, edges and corners\n", + "\n", + "#Calculation\n", + "Sw = A/t\t # [m] shape factor for wall\n", + "Se = 0.54*a \t # [m] shape factor for edges\n", + "Sc = 0.15*t\t # [m] shape factor for corners\n", + "\n", + "\t\t # there are six wall sections, twelve edges and eight corners, so \t\t\tthe total shape factor S is\n", + "\n", + "S = 6*Sw+12*Se+8*Sc \t# [m]\n", + "\t\t \n", + "\t\t# the heat flow is calculated as \n", + "\n", + "q = k*S*(Ti-To) \t# [W]\n", + "\n", + "#Result\n", + "print\"Heat lost through the walls is:\",round(q/1000,3),\"kW\" \n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.3" + ] + }, + { + "cell_type": "code", + "execution_count": 4, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Heat lost by disk is: 198.46 W\n" + ] + } + ], + "source": [ + "#Example Number 3.3\n", + "# Calculate the heat loss by the disk\n", + "\n", + "# Variable declaration\n", + "\n", + "import math\n", + "d = 0.30 \t# [m] diameter of disk\n", + "r = d/2 \t# [m] radius of disk\n", + "Td = 95 \t# [degree celsius] disk temperature\n", + "Ts = 20 \t# [degree celsius] isothermal surface temperature\n", + "k = 2.1 \t# [W/m per degree celsius] thermal conductivity of medium \n", + "D = 1.0 \t# [m] depth of disk in a semi-infinite medium\n", + "\t# We have to calculate shape factor using relation given in table (3-1) \n", + "\t# We select the relation for the shape factor is for the case D/(2*r)>1\n", + "\n", + "#Calculation\n", + "S = (4*math.pi*r)/((math.pi/2)-math.atan(r/(2*D)))\t # [m] shape factor\n", + "\t# heat lost by the disk is \n", + "q = k*S*(Td-Ts) \t\t\t\t\t # [W]\n", + "\n", + "#Result\n", + "print\"Heat lost by disk is:\",round(q,2),\"W\"" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.4" + ] + }, + { + "cell_type": "code", + "execution_count": 5, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Heat transfer between the disks is: 308.4 W\n" + ] + } + ], + "source": [ + "#Example Number 3.4 \n", + "#Calculate the heat transfer betwwen the disks\n", + "\n", + "# Variable declaration\n", + "\n", + "d = 0.50\t # [m] diameter of both disk\n", + "r = d/2 \t # [m] radius of disk\n", + "Td1 = 80\t # [degree celsius] first disk temperature\n", + "Td2 = 20 \t # [degree celsius] second disk temperature\n", + "k = 2.3 \t # [W/m per degree celsius] thermal conductivity of medium \n", + "D = 1.5\t\t # [m] seperation of disk in a infinite medium\n", + "\t# We have to calculate shape factor using relation given in table (3-1) \n", + "\t# We select the relation for the shape factor is for the case D>5*r\n", + "#Calculation\n", + "import math\n", + "\n", + "S = (4*math.pi*r)/((math.pi/2)-math.atan(r/D)) # [m] shape factor\n", + "q = k*S*(Td1-Td2) # [W]\n", + "\n", + "#Result\n", + "print\"Heat transfer between the disks is:\",round(q,1),\"W\" \n", + "\n" + ] + } + ], + "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 +} -- cgit