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P8404 Solar Pasteurizer
Progress: Week 2
Ben Johns
Brian Moses
Greg Tauer
Seby Kottackal
Adam Yeager
Pasteurization
Heat Destroys Bacteria
By heating a liquid to a temperature below boiling, the
bacteria can be destroyed.
Cans and Bottles
Traditionally, in the US, the beer in cans and bottles is
pasteurized. The pasteurization process often occurs after the
beer has been placed in the can or bottle and the package
has been sealed. The process involves running the package
through a hot water spray for two to three minutes.
(Micro-Matic Brewing Equipment)
Customer Needs
2 Groups:
EPA
Environmentally Friendly
Distributable
Tamper resistant
Solar
End Users (Venezuela)
Safely Pasteurize enough H2O
Cheap
Easy to:
Use
Assemble/Set Up
Maintain
Safe
Long life
Needs  Metrics
Spec
Number
Customer
Need Number
Metric
Importance
Unit of Measure
Marginal
Value
Ideal Value
1
1
Safety Zone
9
Binary
1
1
2
1
Kill Rate
9
percentage
killed
99%
99.90%
3
1
Pasteurize water
3
l / day
25
100
4
2
Production Cost (materials)
9
Dollars
85
25
5
2
Production Cost (labor)
1
Hours
8
3
6
2
Maintenance Cost (Materials)
3
Dollars
5
1
7
3a,3b
Maximum set up time from shipping state
1
Minutes
15
5
8
3c
Thermal cycles between maintenance
3
Days
30
365
9
4
Highest External Temp
1
Degree C
40
30
10
5
Corrosion Resistant
9
Binary
1
1
11
5
Clog Resistant
9
Binary
1
1
12
6
Percentage of dry mass recyclable/reusable
3
%
75
100
13
7
Fit standard shipping pallet
1
Binary
0
1
14
8
Tamper resistant
3
Binary
0
1
15
1
Operating Temperature of pasteurization
3
Degree C
65
70
16
1
Time to reach operating temperature
3
Minutes
180
60
Successfully planning is
like planning to succeeded