User:Linh N Le/Notebook/2009/07/30: Difference between revisions
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== | ==To Do== | ||
* | * Play with ice machine | ||
==Ice Machime== | |||
*The electronic ice machines came in yesterday and I have been messing with them since | |||
*They are set to be @ 3°C | |||
*They use these "Miracle Beads" instead of ice to absorb the heat | |||
*We left one on overnight filled 80% with beads with a centrifuge tube with tap water. | |||
**Today, it is hovering about 6-7°C which Koch thinks is alright | |||
***The VWR is around 5C | |||
*The display says its at 3C and using the temp probe we have, the block is 3-4C | |||
*Things to try: | |||
**Leave the lid off (Koch's Idea). Makes more of a thermal gradient, perhaps causing the block to work harder and cool the beads all the way through | |||
**Too many beads, use less beads (Q=mc(delta)T, so if Q is constant, less m = more delta T) | |||
**Beads + water. The booklet says that this causes the thing to cool faster (1hr instead of 2hrs for beads only) | |||
Revision as of 12:21, 30 July 2009
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To Do
Ice Machime
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