Issues driving my CCVM- total noob
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- Distiller
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Re: Issues driving my CCVM- total noob
So plates in plated reflux columns are flooded?
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50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
- bluefish_dist
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Re: Issues driving my CCVM- total noob
No, but there is a level of liquid on the plate. That height is set by the downcomer. Usually around 1/2” (13mm). A plate should be in equilibrium with a constant flow of vapor going up and liquid going down. Flooding is when too much vapor is coming up and not enough liquid is going down. The fluid level will slowly increase until you are pushing liquid up the column, not vapor.
You can also hold liquid in the packing like a plate holds liquid. Supposedly for SPP that reduces the hetp, but I have never been able to make that work. Usually I found once the liquid was being held up, it just keeps going up until it pukes out the top or I reduced power so it went back down.
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Re: Issues driving my CCVM- total noob
Thanks Blue. I was challenging the comments about any liquid pooling on top of packing as being a column in a flooded state. As you say it is possible to maintain an equilibrium between vapour rising and condensate falling and it is only at the stage where the level of liquid is rising that flooding is a risk. Thanks again.
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50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
Re: Issues driving my CCVM- total noob
I would like to see this a seperate discussion. I agree with Yummy that it borders on flooding. BUT, looking at the boiling action in the video it seems mild. If i remember correct previous posts on the subject showed more vigorous boiling action.Andrew_90 wrote: ↑Fri Dec 03, 2021 12:23 pmSo effectively the video I posted shows my column flooding?Andrew_90 wrote: ↑Fri Dec 03, 2021 12:31 am Here is a clip of my sight glass under operation.
You can see the distillate streaming down the sight glass sides as well as dripping down. It was the same when the column was being stabilized. The video posted is during the actual spirit run, the bubbling is about an inch above the packing.
https://mavness.co.za/vid/ginstillpercolating.mp4
It is a pity your column is so well insulated, i would have liked to see what the outside temprature differences are between bottom, mid and top column in this state.
NoIdonotrunbytemprature
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- Rumrunner
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Re: Issues driving my CCVM- total noob
@Setsumi.
I have a infrared temperature probe for my multimeter so can give you bottom and top right at the entrance and the exit. This reading should be very close, or perhaps close enough for your purposes.
I need to wait for my multimeter to be repaired and then I will do it for you at the next run which will be in the new year.
Reminded me of the old WYSIWYG
I have a infrared temperature probe for my multimeter so can give you bottom and top right at the entrance and the exit. This reading should be very close, or perhaps close enough for your purposes.
I need to wait for my multimeter to be repaired and then I will do it for you at the next run which will be in the new year.
NoIdonotrunbytemprature
Reminded me of the old WYSIWYG
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- shadylane
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Re: Issues driving my CCVM- total noob
What kind of regulator is being used between the propane tank and burner?Schuetzenman wrote: ↑Thu Oct 28, 2021 5:28 pm I’m running on propane. I don’t think it was going to puke as it was 40% low wines,
ABV was 95-ish and takeoff rate was about 1.5qt per hour
The more consistent the power input, the easier it is to control the column.
How tall is the packed section of the column?
Re: Issues driving my CCVM- total noob
Thanks for the input folks. Hopefully I'll get to run it again this weekend and see how it does. Practice/Read/Practice/Read, what seems an endless cycle. LOL.
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Re: Issues driving my CCVM- total noob
I run a blichmann burner from my home brewing setup. It is a low pressure regulator, so I can get pretty good control. My packed section is 48 inches. I finally got a chance to do a run yesterday. I repacked the column a little looser and it seemed to help. Still had the output speeding up and slowing down but it was windy and even in a garage half closed I think the drafts were causing that.shadylane wrote: ↑Sat Dec 04, 2021 12:08 amWhat kind of regulator is being used between the propane tank and burner?Schuetzenman wrote: ↑Thu Oct 28, 2021 5:28 pm I’m running on propane. I don’t think it was going to puke as it was 40% low wines,
ABV was 95-ish and takeoff rate was about 1.5qt per hour
The more consistent the power input, the easier it is to control the column.
How tall is the packed section of the column?
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Re: Issues driving my CCVM- total noob
Is your column insulated?
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50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
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Re: Issues driving my CCVM- total noob
Yea I insulated it with reflectix.
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Re: Issues driving my CCVM- total noob
thanks, okay so maybe the drafts are affecting the gas burner? That would make sense
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50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
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- Joined: Sun Jul 11, 2021 5:26 am
Re: Issues driving my CCVM- total noob
Yeah I was thinking drafts were disturbing the flame and maybe cooling the headspace in the boiler.
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- Master of Distillation
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Re: Issues driving my CCVM- total noob
Put a shield around it.kimbodious wrote: ↑Mon Jan 17, 2022 12:22 am thanks, okay so maybe the drafts are affecting the gas burner? That would make sense
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