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diff --git a/Thermodynamics_by_F_P_Durham/chapter9.ipynb b/Thermodynamics_by_F_P_Durham/chapter9.ipynb deleted file mode 100755 index 5adb2219..00000000 --- a/Thermodynamics_by_F_P_Durham/chapter9.ipynb +++ /dev/null @@ -1,229 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:1b345bcc6f6116aaf7adbb12f98cd555cc881aca2c20462b022b19355831b872" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Chapter 9: Vapour Power Cycles" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 9.1, page no. 179" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "\n", - "#initialization\n", - "P = 500 #lb/in^2\n", - "T = 800+460.0 #R\n", - "Pf = 1.0 #lb/in^2\n", - "\n", - "#calculation\n", - "#From table 4 of appendix\n", - "ht1 = 69.7\n", - "vt1 = 0.01614\n", - "W = vt1*(P-Pf)*144\n", - "ht2 = W/778 +ht1\n", - "ht3 = 1412.1\n", - "s3 = 1.6571\n", - "ht4 = 925.8\n", - "WbyJ = ht3-ht4\n", - "W3 = 778*WbyJ\n", - "dW = W3-W\n", - "eta = 1-((ht4-ht1)/(ht3-ht2))\n", - "\n", - "#result\n", - "print \"Neglecting pump work, Work = %d ft-lb/lbm\" %W3\n", - "print \"Considering pump work, Work = %d ft-lb/lbm\" %dW\n", - "print \"Considering pump work, Thermal efficiency = %.3f\" %(eta-0.001)\n", - "print \"Neglecting pump work, Thermal efficiency = 0.362\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Neglecting pump work, Work = 378341 ft-lb/lbm\n", - "Considering pump work, Work = 377181 ft-lb/lbm\n", - "Considering pump work, Thermal efficiency = 0.361\n", - "Neglecting pump work, Thermal efficiency = 0.362\n" - ] - } - ], - "prompt_number": 1 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 9.2, page no. 181" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "\n", - "#initialization\n", - "P1 = 400.0 #lb/in^2\n", - "T1 = 800+460.0 #R\n", - "Pt1 = 1.0 #lb/in^2\n", - "T2 = 95+460.0 #R\n", - "Pt2 = 500.0 #lb/in^2\n", - "es = 0.8\n", - "ep = 0.75\n", - "et = 0.8\n", - "\n", - "#calculation\n", - "#From Appendix steam tables and mollier chart\n", - "ht1 = 62.98\n", - "ht3 = 1416.4\n", - "ht4s = 941.1\n", - "vt1 = 0.0161\n", - "WbyJ = vt1*(Pt2-Pt1)/(ep*778)\n", - "ht2 = WbyJ+ht1\n", - "Q = (ht3-ht2)/et\n", - "WtbyJ = et*(ht3-ht4s)\n", - "dW = 778*(WtbyJ-WbyJ)\n", - "eta = WtbyJ/Q\n", - "\n", - "#result\n", - "print \"Thermal efficiency = %.3f\" %eta\n", - "print \"Specific net work = %d B/lbm\" %dW" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Thermal efficiency = 0.225\n", - "Specific net work = 295816 B/lbm\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 9.3, page no. 184" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "\n", - "#initialization\n", - "P1 = 500 #lb/in^2\n", - "T1 = 800 #F\n", - "\n", - "#calculation\n", - "#From steam tables\n", - "ht1 = 69.7\n", - "ht3 = 1412.1\n", - "s3 = 1.6571\n", - "ht4 = 1175\n", - "Pt4 = 53 \n", - "ht5 = 1430\n", - "s5 = 1.917\n", - "ht6 = 1070\n", - "X6 = 0.966\n", - "Wsum = 778*(ht3-ht4+ht5-ht6)\n", - "Qsum = ht3-ht1+ht5-ht4\n", - "eta = Wsum/(778*Qsum)\n", - "\n", - "#result\n", - "print \"Specific work = %d ft-lb/lbm\" %Wsum\n", - "print \"Thermal efficiency = %.3f \" %eta" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Specific work = 464543 ft-lb/lbm\n", - "Thermal efficiency = 0.374 \n" - ] - } - ], - "prompt_number": 1 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Exmaple 9.4, page no. 186" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "\n", - "#initialization\n", - "# From steam tables\n", - "\n", - "ht1 = 218.12\n", - "ht3 = 1412.1\n", - "st3 = 1.6571\n", - "ht4 = 1134.6\n", - "ht5 = 925.8\n", - "ht6 = 69.7\n", - "\n", - "#calculation\n", - "w = (ht1-ht6)/(ht4-ht6)\n", - "WbyJ = ht3-ht4+(1-w)*(ht4-ht5)\n", - "W = 778*WbyJ\n", - "Q = ht3-ht1\n", - "eta = WbyJ/Q\n", - "\n", - "#result\n", - "print \"Specific work = %d ft-lb/lbm\" %W\n", - "print \"Efficiency = %.3f\" %eta" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Specific work = 355700 ft-lb/lbm\n", - "Efficiency = 0.383\n" - ] - } - ], - "prompt_number": 2 - } - ], - "metadata": {} - } - ] -}
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