From 41f1f72e9502f5c3de6ca16b303803dfcf1df594 Mon Sep 17 00:00:00 2001 From: Thomas Stephen Lee Date: Fri, 4 Sep 2015 22:04:10 +0530 Subject: add/remove/update books --- .../Chapter6.ipynb | 315 --------------------- 1 file changed, 315 deletions(-) delete mode 100755 Thermodynamics_An_Engineering_Approach/Chapter6.ipynb (limited to 'Thermodynamics_An_Engineering_Approach/Chapter6.ipynb') diff --git a/Thermodynamics_An_Engineering_Approach/Chapter6.ipynb b/Thermodynamics_An_Engineering_Approach/Chapter6.ipynb deleted file mode 100755 index 0cebc0e1..00000000 --- a/Thermodynamics_An_Engineering_Approach/Chapter6.ipynb +++ /dev/null @@ -1,315 +0,0 @@ -{ - "metadata": { - "name": "" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Chapter 6: The Second Law of Thermodynamics" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-1 ,Page No.286" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "QH=80.0;#rate of heat transfer in MW\n", - "QL=50.0;#rate of waste heat rejection in MW\n", - "\n", - "#calculations\n", - "Wnet=QH-QL;\n", - "print'net power output %i MW'%Wnet\n", - "nth=Wnet/QH;\n", - "print'the thermal efficiency is %f '%round(nth,3)\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "net power output 30 MW\n", - "the thermal efficiency is 0.375000 \n" - ] - } - ], - "prompt_number": 1 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-2 ,Page No.286" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "Wnet=65;#power output in hp\n", - "nth=0.24;#effficiency of car\n", - "HV=19000;#heating value in Btu/lbm\n", - "\n", - "#calculations\n", - "QH=Wnet/nth*2545;#factor of 2545 to convert to Btu/h\n", - "m=QH/HV;\n", - "print'the engine must burn at fuel rate %f lbm/h'%round(m,1)\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "the engine must burn at fuel rate 36.300000 lbm/h\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-3 ,Page No.291" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "Wnet=2.0;#power input in kW\n", - "QL=360.0;#rate of heat rejection in kJ/min\n", - "\n", - "#calculations\n", - "COPR=QL/Wnet/60;#factor of 60 to convert kW to kJ/min\n", - "print'coefficient of performance of refrigerator is %i'%COPR;\n", - "QH=QL+Wnet*60;#factor of 60 to convert kW to kJ/min\n", - "print'heat rejection rate %i kJ/min'%QH\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "coefficient of performance of refrigerator is 3\n", - "heat rejection rate 480 kJ/min\n" - ] - } - ], - "prompt_number": 4 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-4 ,Page No.291" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "COP=2.5;#COP in the given conditions of heat pump\n", - "QH=80000.0;#heat loss rate in kJ/hr\n", - "\n", - "#calculations\n", - "Wnet=QH/COP;\n", - "print'the power consumed %i kJ/h'%Wnet\n", - "QL=QH-Wnet;\n", - "print'the rate at which heat is absorbed %i kJ/h'%QL\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "the power consumed 32000 kJ/h\n", - "the rate at which heat is absorbed 48000 kJ/h\n" - ] - } - ], - "prompt_number": 5 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-5 ,Page No.306" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "QH=500.0;#heat recieved per cycle in kJ\n", - "TL=30+273.0;#low temperature source in C\n", - "TH=652+273.0;#high temperature source in C\n", - "\n", - "#calculations\n", - "nth=1-TL/TH;\n", - "print'the thermal efficiency of carnot engine is %f'%round(nth,3);\n", - "QL=TL*QH/TH;\n", - "print'the amount of heat rejected to the sink per cycle %i kJ'%round(QL)\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "the thermal efficiency of carnot engine is 0.672000\n", - "the amount of heat rejected to the sink per cycle 164 kJ\n" - ] - } - ], - "prompt_number": 6 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-6 ,Page No.310" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "COP=13.5;#COP of refrigerator\n", - "TH=75+460.0;#room temperature in R\n", - "TL=35+460.0;#refrigerated temp in R\n", - "\n", - "#calculations\n", - "COPR=1/(TH/TL-1);\n", - "if COPR>=COP:\n", - " print('claim is true');\n", - "else:\n", - " print('claim is false')\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "claim is false\n" - ] - } - ], - "prompt_number": 9 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-7 ,Page No.310" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "TL=-5+273.0;#in C\n", - "TH=21+273.0;#house temp in C\n", - "QH=135000.0/3600;#heat loss rate in kW\n", - "\n", - "#calculations\n", - "COPHP=1/(1-TL/TH);\n", - "Wnet=QH/COPHP;\n", - "print'minimum power required %f kW'%round(Wnet,2)\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "minimum power required 3.320000 kW\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 6-8 ,Page No.314" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#given data\n", - "Qrefrig=40.0;#heat load on referigerator in W\n", - "COPR=1.3;#COP of referigerator\n", - "Wlight=40.0;#rated power of bulb in W\n", - "\n", - "#calculation\n", - "Wrefrig=Qrefrig/COPR;\n", - "Wt=Wrefrig+Wlight;\n", - "AnHr=365*24;#annual hours\n", - "NOH=20*30/3600.0*365;#normal operating hours\n", - "AOP=AnHr-NOH;#addtional operating hours\n", - "APC=Wt*AOP/1000;#additional power consumption; fator of 1000 to convert to kW\n", - "print'increase in power consumption %i kWh/yr'%round(APC);\n", - "print'increase in cost S%f/yr'%round((APC)*0.08,1)\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "increase in power consumption 616 kWh/yr\n", - "increase in cost S49.300000/yr\n" - ] - } - ], - "prompt_number": 3 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit