evil_lurker
National Hazard
Posts: 767
Registered: 12-3-2005
Location: United States of Elbonia
Member Is Offline
Mood: On the wagon again.
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Inline reef chillers?
I snagged a nice new chemglass 1000ml modified stillhead offa day bay for a couple hundred clams (Chemglass price @$350).
Now I almost have all the parts needed for a dedicated sodium benzophenone ketyl still... well maybe not, still need nitrogen/argon bottle, heating
mantle, maybe a new alihn condensor....
Those can be had fairly easily.
What I need is a way to keep the darn thing cool for extended periods of time... ice just ain't practical for long runs, especially when your making
the ether. (I've been known to go thru 30 pounds in a 6 hour time).
I was thinking of using a reef chiller... how many HP do I need?
I was thinking I might be able to get away with 1/4HP... ideally I'd like to have the coolant running a frosty -10ºC.
[Edited on 11-4-2007 by evil_lurker]
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bio2
Hazard to Others
Posts: 447
Registered: 15-1-2005
Member Is Offline
Mood: No Mood
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.........I was thinking of using a reef chiller... how many HP do I need? I was thinking I might be able to get away with 1/4HP... ideally I'd like to
have the coolant running a frosty -10ºC........
I built one for a vapor recovery unit once. The plate type evaporator was in a big cooler (48 qt) full of antifreeze.
and would pull down to minus 20. IIRC it was about 1/4 hp
say 2amps at 120v.
What you need is a " freezer" rated compressor these are
designed for low suction pressures. A n airconditioner
compressor won't last long in those temperatures
You could scavenge one of those type refrigerator/freezer
units that have the freezer compartment made from an aluminum evaporator folded into the freezer box.
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