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{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter12:Emerging Technologies"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex12.1:pg-375"
]
},
{
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"input": [
"import math\n",
"# given data\n",
"delG=-39.59 # kJ/mol\n",
"delH=-56.83 # change in enthalpy in kJ/mol\n",
"mdotmethanol=32.0 # in g/s\n",
"mdotoxygen=48.0 # in g/s\n",
"\n",
"Wmax=166.3 # -delG in kJ\n",
"\n",
"flowmethanol=mdotmethanol*100*3600/(Wmax*1000) # in kg/h\n",
"flowoxygen=mdotoxygen*100*3600/(Wmax*1000) # in kg/h\n",
"print \"The required flow rate of methanol is \",round(flowmethanol,2),\"kg/h\"\n",
"print \"The required flow rate of oxygen is \",round(flowoxygen,2),\"kg/h\"\n",
"delQ=delH-delG # using eq 12.7 \n",
"\n",
"fuelrate=-delQ*19.24/mdotmethanol # in kcal/s\n",
"\n",
"print \"The required heat removal rate is \",round(fuelrate,3),\"kcal/s\"\n",
"\n",
"# The answer is wrong in textbook because of incorrect conversion from g/s to kg/h"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The required flow rate of methanol is 69.27 kg/h\n",
"The required flow rate of oxygen is 103.91 kg/h\n",
"The required heat removal rate is 10.366 kcal/s\n"
]
}
],
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