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diff --git a/Elements_of_thermal_technology_by_John_H._Seely/Tem.ipynb b/Elements_of_thermal_technology_by_John_H._Seely/Tem.ipynb new file mode 100644 index 00000000..058e99cb --- /dev/null +++ b/Elements_of_thermal_technology_by_John_H._Seely/Tem.ipynb @@ -0,0 +1,238 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Chapter 3: Tem" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.1" + ] + }, + { + "cell_type": "code", + "execution_count": 1, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "T (F) = 26.60\n", + " \n", + " T (C) = 87.96\n", + " \n", + " T (K) = 361.11\n", + "press enter key to exit\n" + ] + }, + { + "data": { + "text/plain": [ + "''" + ] + }, + "execution_count": 1, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "#Make the following conversions : (a) -3 C to F (b) 650 R to C (c) 650 R to K\n", + "#initialisation of variables\n", + "T1= -3 \t\t\t\t\t#degrees\n", + "T2= 650. \t\t\t\t#Rankine\n", + "T3= 650. \t\t\t\t#Rankine\n", + "#CALCULATIONS\n", + "t1= (9./5.)*T1+32 \t\t#In F\n", + "t2= T2-459.67 \t\t\t#In F\n", + "t21= (5./9.)*(t2-32) \t#In C\n", + "t3= t21+273.15 \t\t\t#In K\n", + "#RESULTS\n", + "print '%s %.2f' % ('T (F) = ',t1)\n", + "print '%s %.2f' % (' \\n T (C) = ',t21)\n", + "print '%s %.2f' % (' \\n T (K) = ',t3)\n", + "raw_input('press enter key to exit')" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.2" + ] + }, + { + "cell_type": "code", + "execution_count": 2, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "T (F) = 18.00\n", + " \n", + " T (R) = 18.00\n", + "press enter key to exit\n" + ] + }, + { + "data": { + "text/plain": [ + "''" + ] + }, + "execution_count": 2, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "#The temperatuer of an object drops from 40 to 30C. Determine the temperature\n", + "#drop in (a) F and (b) R.\n", + "#initialisation of variables\n", + "T1= 40. \t\t\t\t#degrees\n", + "T2= 30. \t\t\t\t#degrees\n", + "#CALCULATIONS\n", + "d1= (T1-T2)*(9./5.) \t#drop in F\n", + "d2= d1 \t\t\t\t\t#drop in R\n", + "#RESULTS\n", + "print '%s %.2f' % ('T (F) = ',d1)\n", + "print '%s %.2f' % (' \\n T (R) = ',d2)\n", + "raw_input('press enter key to exit')" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.3" + ] + }, + { + "cell_type": "code", + "execution_count": 3, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "L (mm) = 400.54\n", + "press enter key to exit\n" + ] + }, + { + "data": { + "text/plain": [ + "''" + ] + }, + "execution_count": 3, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "#A brass wire has a length of 400mm at 20C. What is the length of the wire at 90C?\t\n", + "#initialisation of variables\n", + "l= 400 \t\t\t\t\t#mm\n", + "t1= 20 \t\t\t\t\t#degrees\n", + "t2= 90 \t\t\t\t\t#degrees\n", + "alpha= 19.3/1000000. \t#degrees^-1\n", + "#CALCULATIONS\n", + "L= alpha*(t2-t1)*l \t\t#Change in Length\n", + "L1= L+l \t\t\t\t#Final Length\n", + "#RESULTS\n", + "print '%s %.2f' % ('L (mm) = ',L1)\n", + "raw_input('press enter key to exit')" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Exa 3.4" + ] + }, + { + "cell_type": "code", + "execution_count": 4, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "diameter at -15 (in) = 2.98\n", + "press enter key to exit\n" + ] + }, + { + "data": { + "text/plain": [ + "''" + ] + }, + "execution_count": 4, + "metadata": {}, + "output_type": "execute_result" + } + ], + "source": [ + "#An Al 2024-T3 plate has a 2.980-in diameter hole at 69F. What is the \n", + "#diameter if the temperature is lowered to -15F?\n", + "import math\n", + "#initialisation of variables\n", + "d= 2.98 \t\t\t\t\t#in\n", + "T1= 69 \t\t\t\t\t\t#F\n", + "T2= -15 \t\t\t\t\t#F\n", + "alpha= 22.7/1000000. \t\t#C^-1\n", + "#CALCULATIONS\n", + "A0= math.pi*d*d/4. \t\t\t#Initial Area\n", + "alpha1= alpha/1.8 \n", + "A= 2*alpha1*A0*(T1-T2) \t#Change in Area\n", + "A1= A0-A \n", + "d1= math.sqrt(4*A1/math.pi) #diameter at -15F\n", + "#RESULTS\n", + "print '%s %.2f' % ('diameter at -15 (in) = ',d1)\n", + "raw_input('press enter key to exit')" + ] + } + ], + "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 +} |