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author | Thomas Stephen Lee | 2015-09-04 22:04:10 +0530 |
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committer | Thomas Stephen Lee | 2015-09-04 22:04:10 +0530 |
commit | 41f1f72e9502f5c3de6ca16b303803dfcf1df594 (patch) | |
tree | f4bf726a3e3ce5d7d9ee3781cbacfe3116115a2c /Fundamentals_Of_Thermodynamics/Chapter10.ipynb | |
parent | 9c9779ba21b9bedde88e1e8216f9e3b4f8650b0e (diff) | |
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diff --git a/Fundamentals_Of_Thermodynamics/Chapter10.ipynb b/Fundamentals_Of_Thermodynamics/Chapter10.ipynb deleted file mode 100755 index 59bbb80a..00000000 --- a/Fundamentals_Of_Thermodynamics/Chapter10.ipynb +++ /dev/null @@ -1,164 +0,0 @@ -{
- "metadata": {
- "name": "",
- "signature": "sha256:6310b6690e48041fd88dd8277353623ea538798dfeeeb9a3819409de065b2175"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Chapter10:IRREVERSIBILITY AND AVAILABILITY"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Ex10.1:pg-386"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#example 1\n",
- "#Calculating reversible work\n",
- "\n",
- "#Form the Steam Tables,the inlet and the exit state properties are \n",
- "hi=171.95 #initial specific heat of enthalpy in kJ/kg\n",
- "si=0.5705 #initial specific entropy in kJ/kg-K\n",
- "se=2.1341 #final specific entropy in kJ/kg-K\n",
- "he=765.34 #final specific heat of enthalpy in kJ/kg-K\n",
- "m=5 #mass flow rate of feedwater in kg/s\n",
- "q1=900/m #heat added by one of the sources in kJ/kg\n",
- "q2=he-hi-q1 #second heat transfer in kJ/kg\n",
- "To=25+273.3 #Temp. of the surroundings in K\n",
- "T1=100+273.2 #temp. of reservoir of one of the source in K\n",
- "T2=200+273.2 #temp. of reservoir of second source in K\n",
- "wrev=To*(se-si)-(he-hi)+q1*(1-To/T1)+q2*(1-To/T2) #reversible work in kJ/kg\n",
- "print\"\\n Hence, the irreversibility is\",round(wrev,1),\"kJ/kg\"\n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "\n",
- " Hence, the irreversibility is 62.0 kJ/kg\n"
- ]
- }
- ],
- "prompt_number": 1
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Ex10.2:pg-387"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#example 2\n",
- "#Calculating reversible work\n",
- "import math\n",
- "#Form the Steam Tables,the inlet and the exit state properties are\n",
- "hi=298.6 #initial specific heat of enthalpy in kJ/kg\n",
- "si=6.8631 #initial specific entropy in kJ/kg-K\n",
- "se=7.4664 #final specific entropy in kJ/kg-K\n",
- "he=544.7 #final specific heat of enthalpy in kJ/kg-K\n",
- "q=-50 #heat lost to surroundings in kJ/kg\n",
- "w=hi-he+q #work in kJ/kg\n",
- "To=25+273.2 #Temp. of the surroundings in K\n",
- "P1=100 #Pressure of ambient air in kPa\n",
- "P2=1000 #Final pressure of air after compression in kPa\n",
- "R=0.287 #Universal gas constant in kJ/kg-K\n",
- "wrev=To*(se-si-R*math.log(P2/P1))-(he-hi)+q*(1-To/To)#reversible work for the given change of state in kJ/kg\n",
- "i=wrev-w #irreversibility in kJ/kg\n",
- "print\"\\n Hence, the irreversibility is\",round(i,1),\"kJ/kg\"\n"
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "\n",
- " Hence, the irreversibility is 32.8 kJ/kg\n"
- ]
- }
- ],
- "prompt_number": 3
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Ex10.3:pg-390"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#example 3\n",
- "#Calculating reversible work and irreversibility\n",
- "\n",
- "#Form the Steam Tables at state 1\n",
- "u1=1243.5 #initial specific internal energy in kJ/kg\n",
- "s1=4.4819 #initial specific entropy in kJ/kg-K\n",
- "v1=28.895 #initial specific volume in m^3/kg\n",
- "v2=2*v1 #final specific volume in kg/m^3\n",
- "u2=u1 #initial specific internal energy in kJ/kg\n",
- "#These two independent properties, v2 and u2 , fix state 2.The final temp. is calculated by interplotation using the data for T2=5C and v2,x=0/3928 and u=948.5 kJ/kg. For T2=10C and v2, x=0.5433 and u=1317 kJ/kg\n",
- "T2=9.1+273.2 #final temp. in K\n",
- "x2=0.513 #quality in final state\n",
- "s2=4.644 #final specific entropy in kJ/kg\n",
- "V1=1 #volume of part of A in m^3\n",
- "m=V1/v1 #mass flow rate in kg/s\n",
- "To=20+273.2 #Room temperature in K\n",
- "Wrev=To*m*(s2-s1) #reversible work in kJ\n",
- "I=Wrev #irreversibility of the process\n",
- "print\"\\n The irreversibility is \",round(I,3),\"kJ\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "\n",
- " The irreversibility is 1.645 kJ\n"
- ]
- }
- ],
- "prompt_number": 5
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [],
- "language": "python",
- "metadata": {},
- "outputs": []
- }
- ],
- "metadata": {}
- }
- ]
-}
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