Team:Harvard/Dailybook/Week6/Widgetry

From 2008.igem.org

(Difference between revisions)
(New page: =Goals for this week= =Monday: July 28, 2008= =Tuesday: July 29, 2008= =Wednesday: July 30, 2008= =Thursday: July 31, 2008= =Friday: August 1, 2008=)
(First Nine-chamber Test)
 
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=Goals for this week=
=Goals for this week=
-
=Monday: July 28, 2008=
+
* Finish building remainder of chambers to bring us up to a total of 9 working fuel cells
-
=Tuesday: July 29, 2008=
+
* Configure Kiethley/LabVIEW to support measurement from 9 fuel cells
-
=Wednesday: July 30, 2008=
+
* Run test with 9 identical wt chambers to test for reproducibility of results
-
=Thursday: July 31, 2008=
+
** Use argon instead of nitrogen on anode side
-
=Friday: August 1, 2008=
+
 
 +
=First Nine-chamber Test=
 +
* Clean and re-build fuel cells in preparation for experiment
 +
** Reused cathodes, but replaced Nafion membrane and anode
 +
* Placed built fuel cells under UV light to prevent contamination
 +
 
 +
[[Image:shaking.jpg | 600px]]
 +
 
 +
'''Variance Test with Shaking'''
 +
 
 +
 
 +
What we did:
 +
 
 +
-Tested how much variance existed among chambers by running 9 parallel chambers with wt Shewie
 +
 
 +
-Switched nitrogen gas with argon gas on the anode side
 +
 
 +
-Shook chamber 1 manually to see the effect of shaking on current production
 +
 
 +
 
 +
Results:
 +
 
 +
-Current production range was between 50-75 microAmps
 +
 
 +
-Red line (wt w/ shaking) went up to 500 microAmps when shaking vigorously
 +
 
 +
:-Shows that shaking directly affects current production
 +
 
 +
:-Therefore, amount of gas bubbling directly affects current production
 +
 
 +
- Possible to use this as direct test for computer interface

Latest revision as of 21:22, 29 October 2008

Goals for this week

  • Finish building remainder of chambers to bring us up to a total of 9 working fuel cells
  • Configure Kiethley/LabVIEW to support measurement from 9 fuel cells
  • Run test with 9 identical wt chambers to test for reproducibility of results
    • Use argon instead of nitrogen on anode side

First Nine-chamber Test

  • Clean and re-build fuel cells in preparation for experiment
    • Reused cathodes, but replaced Nafion membrane and anode
  • Placed built fuel cells under UV light to prevent contamination

Shaking.jpg

Variance Test with Shaking


What we did:

-Tested how much variance existed among chambers by running 9 parallel chambers with wt Shewie

-Switched nitrogen gas with argon gas on the anode side

-Shook chamber 1 manually to see the effect of shaking on current production


Results:

-Current production range was between 50-75 microAmps

-Red line (wt w/ shaking) went up to 500 microAmps when shaking vigorously

-Shows that shaking directly affects current production
-Therefore, amount of gas bubbling directly affects current production

- Possible to use this as direct test for computer interface