Search found 53 matches

by matjans
Sat Nov 18, 2023 9:10 am
Forum: Related Electric Accessories
Topic: PWM SSR Controller
Replies: 2
Views: 412

Re: PWM SSR Controller

Yeah sure, that’s why the stuff is on github. Have at it. A software PID is implemeted easily enough.
by matjans
Thu Nov 16, 2023 2:59 pm
Forum: Related Electric Accessories
Topic: PWM SSR Controller
Replies: 2
Views: 412

PWM SSR Controller

I've been working on an arduino based slow PWM SSR controller for some time now, and v1 is operational. fd81d1681a3d3a202a0607be2b0dfe49e7cfbc06_2_1332x1000.jpeg In a case. Old pic, it now has 2 controls - an analog pot for setting powerl level and a rotary pot for the menu. 092987054ad70a92b84799b1...
by matjans
Fri Oct 20, 2023 11:16 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

Welll the pads work, so far. Currently no isolation over the pads, and 11 pads @ 300W (full pull, 100% power) heat up 40L of water from 18C to 98C in an hour and a half without the stirrer engaged. Works out, efficiency should be somewhere around 60-70%. We'll add isolation over the pads later on. H...
by matjans
Fri Oct 20, 2023 6:19 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

20230918_142253.jpg Something like this. A colleague hobby dude from one of the dutch forums, not very experienced distiller but a kickass welder built it for himself. I'm doing the still controller and together we're doing the testing & pad controlling stuff. When the first version is finished...
by matjans
Tue Oct 17, 2023 2:19 pm
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

The last pic, no, they’re heating pads. 12 x 300W.
by matjans
Tue Oct 17, 2023 9:28 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

Teaser. Building a new potstill controlller. Operations screen 3D8A8EDA-D5F3-4107-BC2A-AD3E8334C174.jpeg Menu 87452932-EFBF-41AD-9A5D-D32E039B78ED.jpeg Warning and error. Configurable in the menu. 77D5C714-610C-4627-81BD-688350822D2A.jpeg E8B2220B-D5C3-47B8-942A-0C6CD94A8288.jpeg WhatsApp Image 2023...
by matjans
Thu Oct 13, 2022 10:12 pm
Forum: Rum
Topic: Clostridium Dunder Pit
Replies: 9
Views: 1656

Re: Clostridium Dunder Pit

An update regarding no 3, the Clostridium butyricum "pit". I finally received the miyarisan pills, and, after some googling, found a small but interesting paper on butyric acid production with c. Butyricum and optimum temp/pH. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1390654/ So I made...
by matjans
Fri Sep 09, 2022 3:39 am
Forum: Rum
Topic: Clostridium Dunder Pit
Replies: 9
Views: 1656

Re: Clostridium Dunder Pit

I hope you take into account that clostridium butyricum will only produce butyric acid under anaerobic conditions and with pH>4.5-5 I have separate muck pits, hoping to create a "somewhat controlled" muck blend to follow the classic way of making High ester Jamaican rum (Allan, Cousins, Ar...
by matjans
Tue Sep 06, 2022 12:07 pm
Forum: The Construction Site
Topic: HbPs' double retort potstill build.
Replies: 71
Views: 6308

Re: HbPs' double retort potstill build.

One word. Beautiful!

If it's high ester rum you're after, try searching for the H. Cousins high ester rum process. Supercharges the ester content of the thumper.
by matjans
Sat Jun 18, 2022 1:17 pm
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

PTFE, or teflon.
by matjans
Thu Jun 16, 2022 9:09 pm
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

Stupefait.

I was aware of plastics being frowned upon, didn't know it was forbidden to talk about them. But ok, no offense taken, if that's your rules, that's your rules.
by matjans
Tue Jun 07, 2022 6:50 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

And another update.
IMG_20220531_152606.jpg
IMG_20220531_152546.jpg
The small still/helm is now also a thumper. Second one is in the works.
IMG_20220525_162408.jpg
IMG_20220524_234144.jpg
IMG_20220524_234507.jpg
by matjans
Fri May 27, 2022 11:16 am
Forum: Yeasts, Enzymes, Fungi, Nutrients
Topic: Saison Yeast in a Rum
Replies: 8
Views: 1209

Re: Saison Yeast in a Rum

Interested, please keep us posted.

I'm starting to experiment with brettanomyces as a finishing yeast for rum washes to get some additional flavors.
by matjans
Wed Apr 20, 2022 8:50 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

Providing the temp gradient is long enough on the beer pre heater what is the negative effect of beer boiling in the injection line. Compare it with tossing a Mentos in a coke bottle. 5 times per second. The sudden increase in pressure in the supply line pushes out the rest into the column, or wors...
by matjans
Wed Apr 20, 2022 6:30 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

(When) the still behaves nicely and effluent temps are not an issue then why bother. :ebiggrin: Exactly. @bluc - not trying to discourage you :), have at it. Just posting my experience. Yes, we tried silicone based defoamer (struktol, food safe industrial defoamer), which works way better than any ...
by matjans
Mon Apr 18, 2022 5:57 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

One, only the product condensor. That is (unfortunately) more than enough. We needed a bypass so the wash wouldn't arrive at the feed point too hot. Injection temp around 65C seems to work well. Using another hx at the spent wash exit would only heat it up more, boiling the wash in the feed line :( ...
by matjans
Mon Apr 18, 2022 3:11 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

The foam needs height to disappear. If the foam bubbles up to the next level, you'll end up with an "erupting" column.
by matjans
Mon Apr 18, 2022 12:18 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

Nice. If you use less plates (say 9 or 10) with 10-15cm in between it might work :wtf:
by matjans
Sun Apr 17, 2022 10:50 pm
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

No. Tried, tested, gave up. Column is too small for that (not wide enough). Foaming is an issue with sugar wash already, let alone protein containing rum wash/whisky mash. You need to clear and de-gass the sugarwash thoroughly (drill with paint mixer), and use an anti foaming agent to prevent "...
by matjans
Sun Apr 17, 2022 12:40 pm
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

Yep, bottom temp and boiler pressure. If the latter rises too fast (too much wash) the pressure in the boiler rises earlier than the temp drops, and the boiler pukes via the spent wash exit before ending up in a cold crash. If you then turn the wash feed down to quickly, the level sensor in the boil...
by matjans
Sun Apr 17, 2022 6:54 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

You're right, 30 isn't necessary. About 8 (or more) too many. Depending on your MO. I based the design on one of the NSC threads on homedistiller.ru (a very very long thread), where they somewhere in the middle came to the conclusion that one perforated plate under non-ideal circumstances behaves li...
by matjans
Sun Apr 17, 2022 3:58 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

Manual adjust. Piston type with adjustable stroke. I suggested a peristaltic pump for automation purposes but this one was available, and as we"re only using it once or twice a year there"s no use in automation (except for "because we can") Iff I were to automate wash feed I gues...
by matjans
Sun Apr 17, 2022 12:34 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

Driving the waste to less than 1 percent etoh is frigging great. Keep in mind that the column builds a bit of pressure in the boiler (around 10-15cm water or roughly 10-15hPa), so boiling temperature increases a bit. "After carefully calculating and measuring losses" ... Our best guestima...
by matjans
Sat Apr 16, 2022 11:58 pm
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

25-30L/h beer feed of course. 25l/h product take off at 2.5kW would get you a very well paid job at a random oil company. No pics at the moment, but we use 30 plates, 30% holes of 5.3mm (laser cut), 4.5cm between plates and 0.15mm between plate and column wall. Top 2 plates have doubke spacing (~9cm...
by matjans
Fri Apr 15, 2022 12:22 pm
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Re: Another stripper, 25L/h 2" 2.5kW ;)

More or less, yes. That's what you get from using basically the same design choices.
You do have to tweak the wash temperature and feed speed to get there though.

My friend built it and uses it, I just tag along for the ride :)
by matjans
Fri Apr 15, 2022 10:48 am
Forum: Continuous Stripping stills
Topic: Another stripper, 25L/h 2" 2.5kW ;)
Replies: 56
Views: 4476

Another stripper, 25L/h 2" 2.5kW ;)

Output abv at ~50%ABV with 25-30L/h @2.5kW Bottom temp in column stable at around 99.8-99.9C Sugar wash at ~10% input, feeding from the top Depending on setup 25-30 plates with holes, 2" column. No steamer, the spent wash is used in the boiler and overflows into the sink. We do use a bit of ant...
by matjans
Mon Jan 17, 2022 2:09 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

A stirrer, well, stirrs. Liquid. There's quite a lot of wash under the heating element (heats slowly), and stirring the wash reduces smearing of fores, heads, hearts and tails.
by matjans
Sun Jan 16, 2022 10:44 pm
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

Finally added a stirrer to the small still. In the pics it's setup as a helmet on top of the bigger boiler, but i can use it stand-alone as a small still. The stirrer will only be used in stand alone mode (obviously). Stirrer (needs cleaning): stirrer1.jpeg . Mounted on helmet: stirrer2.jpeg . Speed...
by matjans
Sat Jun 12, 2021 2:17 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

Sure, you don't run a still by numbers, it's not going to improve your product. Well... That depends, really. Of course there is no replacement for organoleptic tests (bottoms up!) but there are advantages in having some numbers, especially with reflux columns like a Boka and even more so when you ...
by matjans
Fri Jun 11, 2021 12:55 am
Forum: The Construction Site
Topic: My Still
Replies: 42
Views: 4515

Re: My Still

It's what I had :) I will be building a keg based boiler though sometime. I want to have a short sight glass and/or a polish style buffer at the bottom of the column, but no more ceiling height... Already have a 4" ferrule and end plate for easier filling/cleaning, just need a keg. Currently I ...