LM, VM, CM still designations.

Moderator: Site Moderator

Post Reply
RocketSurgeon
Site Donor
Site Donor
Posts: 54
Joined: Wed Dec 23, 2020 12:15 pm

LM, VM, CM still designations.

Post by RocketSurgeon »

What do the LM, VM, and CM still designations mean? I see them referenced frequently, but can't find an explanation.

Also, in Zymurgy Bob's post Read Me First Discussion (http://www.artisan-distiller.net/phpBB3 ... 46#p121746), he says; "In An Overview of Potstilling, you learned how to run your potstill...".

I am unable to find that post or any reference to it.

Will some kind soul please point me to it?

Thanks.
Not to get technical, but according to chemistry alcohol is a solution.
User avatar
zed255
Distiller
Posts: 1021
Joined: Thu Jan 05, 2017 7:06 pm
Location: Ontario, Canada

Re: LM, VM, CM still designations.

Post by zed255 »

----------
Zed

When the Student is ready, the Master will appear.
If you can't explain it simply, you don't understand it well enough.
User avatar
Saltbush Bill
Site Mod
Posts: 9677
Joined: Thu Mar 17, 2011 2:13 am
Location: Northern NSW Australia

Re: LM, VM, CM still designations.

Post by Saltbush Bill »

Liquid Management , Vapour Management , Cooling Management.
As far as I'm aware not all of Bobs book can be viewed free on line, it is for sale though and pretty easy to track down.
User avatar
Bushman
Admin
Posts: 17988
Joined: Tue Mar 30, 2010 5:29 am
Location: Pacific Northwest

Re: LM, VM, CM still designations.

Post by Bushman »

Also a good search for terms would be our glossary:
viewtopic.php?f=46&t=58100
kimbodious
Distiller
Posts: 1199
Joined: Fri Apr 17, 2015 3:57 pm
Location: Far northern tropics of Australia.

Re: LM, VM, CM still designations.

Post by kimbodious »

Might as well add CCVM to the list of acronyms - condenser controlled vapour management
--
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
OtisT
Master of Distillation
Posts: 3180
Joined: Sat Oct 24, 2015 11:59 am
Location: Pacific Northwest

Re: LM, VM, CM still designations.

Post by OtisT »

That just makes it a CM in my book.
Otis’ Pot and Thumper, Dimroth Condenser: Pot-n-Thumper/Dimroth
Learning to Toast: Toasting Wood
Polishing Spirits with Fruitwood: Fruitwood
Badmotivator’s Barrels: Badmo Barrels
User avatar
Yummyrum
Global moderator
Posts: 7657
Joined: Sat Jul 06, 2013 2:23 am
Location: Fraser Coast QLD Aussie

Re: LM, VM, CM still designations.

Post by Yummyrum »

OtisT wrote: Thu Dec 31, 2020 5:02 pm That just makes it a CM in my book.
Not really Otis , in a CCVM you are not adjusting coolant flow but rather moving the physical position of the condenser . It is a VM .
User avatar
Saltbush Bill
Site Mod
Posts: 9677
Joined: Thu Mar 17, 2011 2:13 am
Location: Northern NSW Australia

Re: LM, VM, CM still designations.

Post by Saltbush Bill »

I see where Otis is coming from....by moving the condenser up or down are you not managing the amount of cooling?
kimbodious
Distiller
Posts: 1199
Joined: Fri Apr 17, 2015 3:57 pm
Location: Far northern tropics of Australia.

Re: LM, VM, CM still designations.

Post by kimbodious »

No, but you are changing where the reflux is occurring (in relation to the offtake). A similar discussion about the nature of the CCVM design took place in 2013 in the Condenser Controlled Column thread viewtopic.php?f=17&t=41579
--
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
RocketSurgeon
Site Donor
Site Donor
Posts: 54
Joined: Wed Dec 23, 2020 12:15 pm

Re: LM, VM, CM still designations.

Post by RocketSurgeon »

Didn't see those terms in the glossary I located previously. Perhaps there is more than one. Thanks.
Not to get technical, but according to chemistry alcohol is a solution.
Prairiepiss
retired
Posts: 16571
Joined: Sat Dec 18, 2010 7:42 am
Location: Somewhere in the Ozarks

Re: LM, VM, CM still designations.

Post by Prairiepiss »

Yummyrum wrote: Thu Dec 31, 2020 10:02 pm
OtisT wrote: Thu Dec 31, 2020 5:02 pm That just makes it a CM in my book.
Not really Otis , in a CCVM you are not adjusting coolant flow but rather moving the physical position of the condenser . It is a VM .
You are not controlling the coolant flow. Yes you are correct in that statement. But you are controlling the coolant. You are not controlling the vapors by mechanical means. You are controlling the vapor with the coolant you are controlling by moving it. So it’s a CM still.

You are letting alcohol vapors through by the amount of cooling action the coolant system is imposing on the rising vapors. And you are adjusting the coolant system to allow the vapors you want to flow by. Again it’s a cooling management still.

Just because the condenser is above the takeoff doesn’t make it not a CM still. You are just imposing your will on the vapors from a different angle. Above the take off instead of below the takeoff.

You are physically adjusting the coolant system. You are not physically adjusting the vapors. So I would agree. That is a CM still in my book.
It'snotsocoldnow.

Advice For newbies by a newbie.
CM Still Mods
My Stuffs
Fu Man

Mr. Piss
That's Princess Piss to the haters.
User avatar
bluefish_dist
Distiller
Posts: 1502
Joined: Fri Jan 16, 2015 10:13 am
Location: Eastern Ia

Re: LM, VM, CM still designations.

Post by bluefish_dist »

I would disagree and say it’s a vm. You are managing the takeoff by valving the vapor. You just happen to use a condenser as the valve.

If you lowered the condenser and then controlled it by coolant flow I would say, yes it’s a CM. But by raising and lowering the condenser with a fixed flow, you are not using coolant flow to manage takeoff.
Formerly
Dsp-CO-20051
kimbodious
Distiller
Posts: 1199
Joined: Fri Apr 17, 2015 3:57 pm
Location: Far northern tropics of Australia.

Re: LM, VM, CM still designations.

Post by kimbodious »

8AC00995-AF5E-4B6C-B124-5175FE47387C.jpeg
0B7407C7-4D5C-493C-8E12-5DDE70F83C1D.jpeg
When the RC is above the offtake, you can change the flow of coolant but the result is the same.
--
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
User avatar
Tummydoc
Site Donor
Site Donor
Posts: 967
Joined: Tue Jun 24, 2014 1:05 pm
Location: attack ship off the shoulder of Orion

Re: LM, VM, CM still designations.

Post by Tummydoc »

It's CCVM, not CCCM for a reason. Your condenser becomes the valve as stated above, and coolant flow is not the controlling factor.
kimbodious
Distiller
Posts: 1199
Joined: Fri Apr 17, 2015 3:57 pm
Location: Far northern tropics of Australia.

Re: LM, VM, CM still designations.

Post by kimbodious »

I feel bad that I am somewhat to blame for this thread being hijacked. I am happy if the moderators want to move the tail end of this thread to the condenser controlled column thread
--
50L Beer keg boiler, 2200W element
Modular 2" Pot Still
opinions are free and everybody has them, experience costs you time
User avatar
Yummyrum
Global moderator
Posts: 7657
Joined: Sat Jul 06, 2013 2:23 am
Location: Fraser Coast QLD Aussie

Re: LM, VM, CM still designations.

Post by Yummyrum »

Thanks for the graphic Kimbodious . That says what I was thinking exactly .

No need to move it . It is a good discussion and quite relavent . ... and I’m not just saying that ‘cause its validating my theory . :oops:
User avatar
thecroweater
retired
Posts: 6081
Joined: Wed Mar 14, 2012 9:04 am
Location: Central Highlands Vic. Australia

Re: LM, VM, CM still designations.

Post by thecroweater »

Adjusting where the condenser is to change where and how the vapour is collected is mechanical as heck, it is the definition of mechanical manipulation. Such a configuration will/does change the type of management 100% and not in any ambiguous way. What class of management still this is relates directly to the configuration it is ran at any given time, ei. It varies.
Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. Benjamin Franklin
Post Reply