Chiller solution


#1

Not sure what to use for the chiller. Any one have any ideas what solution to use for my chiller? 30liter also have a whiped film system not sure what to use for those chillers or heaters… need help lol thanks for all the feedback


#2

What process will it be used for?


#3

The chiller is set up both on our rotary evaporators and also the whiped film system not sure what I need to fill the chillers I herd iso but I’m sure there is something better


#4

How cold does the chiller get?


#5

You may not be able to use the chiller for both processes at the same time depending on how you plan to run it


#6

-30c it’s get forbthe roto not sure in the whiped film I have t finished assembly. I have two chillers in that system. What would you do??


#7

What wfe are you useing?


#8

It’s my design. I’ll be posting pics end of the week to show everyone it’s very similar to a pope but it’s not a pope lol. We upgraded many thing and it’s a true continuous system


#9

Have you thought about counter flow heat exchangers?


#10

I haven’t…


#11

Whats the brand and model of the chiller?


#12

You could theoretically have the chiller cool the process that is of more importance, then use a counter flow heat exchanger to piggyback off to your other process. You can use a pump to throttle circulation rate through your second system to control temperature.


#13

Not sure I will have to double check when I get back to the fort.


#14

I’ve circulated iso and denatured, both worked well.


#15

How are you keeping atmospheric moisture from forming ice inside the system?


#16

Never had an issue with that.


#17

Really? How low does your chiller go? My -85 c chillers use a nitrogen headspace to keep a positlve pressure. I also dunk a mesh bag full of 3a mol seives every week or so to ensure the fluid is dry. If you run polar solvent as a fluid you need to keep in mind it’s hygroscopic propertys.


#18

I run denatured in my -80c chiller from Touchscience and haven’t had any issues


#19

EtOH%20graph

At around 80% dilution you’ll form ice.


#20

Can I use that in my whiped film system chillers? Or just for the roto chillers