1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
{
"metadata": {
"name": "Chapter 13"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": "Mechanical Refrigeration"
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": "Example 13.2,Page 596"
},
{
"cell_type": "code",
"collapsed": false,
"input": "# Initialization of Variable\nfrom math import pi\nfrom math import atan\nfrom numpy import *\nmr=3.0 #lb\nmj=5.0 #lb\nt2=67.0 #F\nt1=60.0 #lb\nihp=7.25\n#\"From mollier charts\"\nh4=709 #Btu/b\nh3=618 #Btu/lb\n\n#calculations\nenergyin=ihp*2545/60\nenergyout=mr*(h4-h3) + mj*(t2-t1)\n\n#results\nprint \"Energy in Btu/min\",round(energyin,3)\nprint \"Energy out Btu/min\",round(energyout,3)",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Energy in Btu/min 307.521\nEnergy out Btu/min 308.0\n"
}
],
"prompt_number": 10
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": "Example 13.3,Page 602"
},
{
"cell_type": "code",
"collapsed": false,
"input": "# Initialization of Variable\nfrom math import pi\nfrom math import atan\nfrom numpy import *\nr=3.0 #lb\nhp=10.0 #hp\n\n#calculations\nh3=618 #Btu/lb\nh1=131 #Btu/lb\nQe=mr*(h3-h1)\nwork=hp*2545/60\ncop=Qe/work\n\n#results\nprint \"Coefficient of performance \",round(cop,3)",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Coefficient of performance 3.444\n"
}
],
"prompt_number": 11
}
],
"metadata": {}
}
]
}
|
