Incredible solid state dehumidifier. No moving parts.
ฝัง
- เผยแพร่เมื่อ 12 ก.ย. 2018
- This is a very intriguing device that uses a low current at low voltage to transfer moisture from inside an enclosure to the outside. Effectively a solid state dehumidifier with no moving parts.
The version I put in the box is a PD2 and is rated to remove up to 84mg of water a day, so really intended for small enclosures.
The large square unit can handle up to 2.9g of water a day.
Note that these units are intended for use with sealed electrical enclosures and not for house dehumidification.
When I mentioned a ceramic capacitor in the power supply I actually meant the ceramic HRC style fuse which is a good design choice.
The test results in the small test enclosure were:-
9.30pm 67% peaking at about 200mA then settling at 86mA.
10.00pm 58% 25mA
10.30pm 49% 24mA
11.00pm 44% 23mA
12.20am 41% 21mA
1am 37% 21mA
3am 33% 20mA
Running the unit for about 12 hours the following day bottomed out at 22% at 17mA.
The modules I showed here were generously contributed by Westside International when I enquired about getting a sample to make a video about:-
westside-int.com/rosahl/
And are made by Rosahl:-
www.micro-dehumidifier.com/
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.com/coffee.htm
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I need to stop watching your videos for a while; I keep buying things.
You say this like it was a bad thing :)
Dehumidifer for the tunnel?
Heey It's Cody , Heey Cody , interesting how We're all subbed to the same cool science people . . Have You ever heard of "MR.TESLONIAN" You recently did a video distilling hydrocarbons and this guy MrTeslonian made a video about distilling hydrocarbons and biocrude and he uses some cataysts to turn hydrocarbons into gasoline , I was wondering if You would make his device with the catalysts and show Us how to make the Catalysts ? His video is named "wood stove runs a generator, produces gasoline, runs a fridge and heats hot water at the same time" . The first 18 minutes is on his stove design Then the rest is about the distillery and catalysts . Could You make a video to show Us how to make the catalysts to make gasoline from wood gas ? Thanks Cody , Stay Safe Man :)
I WANNA SEE YOU IN THE BATH
Just like when I start watching Cody's videos and start looking up electric furnaces or pestering my boss for employee discounts for various chemicals.
"I don't want to damage it"
Words I never thought I'd hear on a Big Clive video.
Thanks to Rosahl for being good sports and providing these for a video. And, as always thanks to Clive for sharing his knowledge!
TOUCHE'!
They were provided by Westide international ( a dealer of Rosahl) at least the description says so. But anyway it is really cool that they gave him this interesting device to show and play with:)
I missed this 5 years ago, so thank you for mentioning it today! This seems like MAGIC! I wonder how they hold up in dirty/dusty environments over time.
I'll guess they need a fairly clean and oil free environment.
You should take one of those, glue it to the top of a water bottle, power it by a solar panel then crowd fund it as a self filling water bottle........
It would work as well. Basically a corpse lying in the sunshine next to a bottle that had accumulated quarter of an inch of water since its owner died of dehydration a week earlier.
Google Fontus....
Haha, I like the videos that explain why those systems don't work. "Dry places are dry", "places without water, don't have a lot of water". Very amusing.
Dave Curran
Wouldn't you end up with a bottle full of hydrogen?
I know! Run the hydrogen into a fuel cell to power the system! Perpetual motion with no moving parts! lol
Jim - I think that is similar to what the "Helios" UAV was considering, as mentioned by someone in another comment.
On the other hand, you may have the workings for a self-filling dirigible. :P
They where so proud of your Video they still link it till this day on their front page
As far as I remember, the electroosmosis effect relies on the spontaneous dissociation of H2O into OH- and H+ , a genuine property of very pure water. The Hydroniumion (H+ plus a bulk of H2O molecules around it) then is pulled to one side of the half transparent membrane by applying a voltage gradient over the membrane, which has the consequence that there will arise a pressure gradient over the membrane which favours an increase of water molecules density at the side of the Cathode. The OH- is almost immobile (why so, I cannot tell yet - maybe because of the 16 times higher mass than H+). This effect only works with very pure water. Salt like NaCl will build a shunt and poison the membrane which stops the hydroniumtransport. Thats probably why you should not touch the membrane. Fingerdirt is quite salty. And of course, highly mobile oil nebula will also poison the membrane and interrupt the pumping properties, because where there is oil there cannot be water.
As a helf permeable membrane filter paper or equivalent might work as long as it electrically neutral. I know that sintered glas fritters work well to show this effect.
The textured surface on the outside of the element looks for me like metallised cloth which often is used for anti-EMI wall paper. www.amazon.de/YSHIELD%C2%AE-Abschirmvlies-HNV80-Breite-Laufmeter/dp/B00FO7ZJLY
Great find man!
9:00 "They didn't say that I COULDN'T take it apart..." When I was a wee boy I used to get into trouble with my mother over this logic. Responding "You never told me not to!" didn't really impress her.
My parents used to keep the toolbox out of my reach... then I learned that knives and other objects could act as screwdrivers...
Haha I got into trouble taking things apart as well and not know how to put them back. xD
As an adult I do the same and eventually find where something went.. xD
I like taking pictures just for the reasons of where did that wire go or that component go on the board? xD
The only thing I was afraid to put under the knife was a TV set... The fear of lethal high voltages was very real to me ;) Eventually I braved the territory and luckily survived it! It's all pretty safe until you remove that capped wire on the side of the CRT! Unfortunately I learned the hard way that the CRT itself acts as a very powerful capacitor!
i was 3 and with a tyre spanner in hand trying to take lug nuts off of the car and mum had a fit at dad needless to say i wasn't taught much from then on
My mother said the day i learned to put things back together was a happy one for her.
Fascinating! I had no idea such a thing existed. These things seem like they'd be quite useful in the outdoor equipment boxes at work considering they usually contain somewhat pricey ethernet routers and power supplies.
The peltier module is often used in outdoor boxes and in machines with high temperature
That's a PEM fuel cell in reverse acting as an electrolyzer. It's not going to last long if it is starved of water, which in this case it will be. Needs to be completely wet and would still not last long.
My whole PhD was on fuel cells. The fibers are the gas diffusion layer, possibly carbon doped with platinum.
Should add, means the dry side will be giving off hydrogen and the wet side oxygen. Won't likely give off ozone.
Should've watched the whole video before commenting... The low voltage is to reduce degradation of the membrane and pinholes forming which effectively short it out. But yeah look up PEMFCs as an electrolyser, sometimes called "reversible"
I did come across the PEM fuel cell membranes while researching this device. I wondered if they could be used for the same purpose.
@@bigclivedotcom if you're bored look up the "Helios" UAV. It used a fuel cell to power the motors at night then during the day used solar panels on the wing to power the motors and run the fuel cell in reverse to regenerate the hydrogen ready for the next night. Intimately resulting in an indefinite flight time... Until a motor failed and it crashed lol.
If I understand this correctly, the hydrogen is drawn out from the sealed enclosure leaving behind the oxygen. Wouldn't that be a corrosive atmosphere for the electrics inside it?
Great find! This look ideal for storing 3d printing filament, PLA in particular, since is prone to absorbing humidity. Interesting stuff
you beat me to it I was thinking the same thing
I had the same thoughts !!
Me too, but they are a bit expensive for that. If you also open and close the container frequently, the drying time may be too long for it to be effective.
Same tough here. What a pity it doesn't look to be easily available for the general public.
For reference, I store my LEDs in a sealed container with a silica gel desiccant pack in it and a humidity meter visible from the outside.
Thank you Rosahl for supplying this to BigClive!! What a fascinating piece of equipment Clive!
These would be fantastic for desiccator boxes in research labs. We constantly have to recharge ours with fresh Drierite, especially those in the refrigerator. Or more realistically, they don’t get recharged and the chemicals are just kept at whatever temp/humidity is in the fridge.
Man, now I REALLY want one! I bet the large version could really move some moisture.
Dear Big Clive,
Here is an idea. Take a box. Place the big water destroyer inside, both sides of it. Place a small cap full of water in the bottom, 20-50ml. Close the box. Don't forget to include a high voltage igniter and make a spark in the box after the water has all be electrolysed. This is a great way to turn a old 210 litre drum into a thing of awe.
According to the electrode reactions on the paper you showed, it does indeed make oxygen in the box.
So it is making electrolysis on the water, and splitting it. Nice piece !
8:50 "I can resist anything, save temptation." Oscar Wilde
In the beginning, the humidity drop would probably have (almost) fully been caused by the rising temperature. Later, the lowering humidity would actually have been even lower because of the now lower temp. Temp has a big influence on relative humidity, so it would be interesting to see the same test under static temperature conditions.
Fascinating video - I had never heard of such a device or dehumidifying technique. Awesome of Westside to provide you with the samples!
i love how you explain in such detail =) also your voice is really calming to my ears. i love watching your videos clive!
Your extreme close ups are excellent on my 6S+.
This new technology is SO interesting.
Just got into bed and get a notification from bigClive I love going to bed with Clive! 😂
You could have saved battery, turned off notifications and just opened the TH-cam app and gone to the Subscriptions tab!!
Admit it, you wanted the bath video.
Paul Feakins only to see if his goatie is as long as his scrotie 😂😂
mavos1211 hahahaha indeed!
Lol, yes he does have a very relaxing voice
you are an amazing engineer. I've got a long way to go lol. I'm getting so much better at repairing switching supplies now due to all the vids of yours that involve "boot strap circuits" and so on. when i do repairs, your in the background with a drink helping me out, I'm so appreciative of your channel. very inspiring ... keep up the great work , and cheers
Thank you for posting this video. Before I watched this video, I'd never even heard of electro-osmotic flow.
When I saw the title I thought "yeah right, it's probably some kind of semi-quack product". Then started watching and thought "oh ok this looks interesting, but the temperature is rising - wouldn't that also reduce the humidity?".
Now at the end - when the temperature had dropped and the humidity dropped still further - I gotta say, these things really are incredible!
it would, but i don't think it wouldn't be that much of a difference.
You just have to remember that the relative humidity drops even when the temperature rises.
At the beginning it was 19.7°C and at the end 20.3°C. But still the absolute amount of water in the case has decreased. So the part works, but not quite as the % number suggests.
The later values confirm this. Because although the temperature sank, the air humidity sank further. But the temperature must also be recorded, so that the statement is really accurate.
I agree that temperature is a big part of relative humidity measurements, but did we watch the same video? In mine the end measurement for temperature was 17.7C.
IMHO one of the most interesting productions you have made so far!
Love the fact that they added this video to their website
Nice video Clive, we use 4 of these in our weightronix scale enclosures that we have to keep pressurized with 10 psi of compressed plant air for intrinsic safety (I work in an acetylene plant) to wick passive moisture that the pneumatic dryers miss.
Patrick Lee For that application, does the generation of oxygen and hydrogen interfere with the intrinsic or other safety requirements?
@@johnfrancisdoe1563 good Q would like the A
Normally it would, however our compressed plant air is 70% nitrogen, 30% filtered air so as not to get excessive temperature swings under heavy compressor loads. So the amount of O2 is very low and quite rapidly displaced by the nitrogen. (Exhaust return line is on the bottom of the case, purging low lying oxygen first.)
Patrick Lee and the hydrogen On the outside? Well, I guess acetylene plants are full of that anyway, right?
JPatrick Lee
Can you try flipping it around to see how much will it increase the humidity inside?
I'm not sure it would. You can see the diagram that clive pulled out shows that it moves hydrogen out. I suppose some of that may reform to H2O but I'd expect it to become mostly H2.
You could probably use it to create a highly explosive high hydrogen environment... Like some comic bond villain, just waiting for ages for the hydrogen/oxygen level to be perfect for an explosion
hydrogen for squeeky pop fun!
can do the same thing with just a 9 volt battery and 2 wires... dip them into a glass of water and... science... can collect the hydrogen in a test tube to play with or go bigger and basically build yourself an HHO generator, of which there are several youtube video's on. FAR faster than something like this is going to produce! this is intended for removing hydrogen from the air versus producing it by breaking it down from water which is a far slower process than just using water and electricity.
The diagram he showed has the reactions happening below it. It says 4H+ ions react with 4 electrons and one O2 molecule. So you'd have the same amount of water on the other side, but less oxygen. At least if the formulas shown are correct.
They said have fun! If they have ever seen a single one of your videos, they know it was gonna come apart! Looks like a very useful product.
Thanks for sharing this incredible electrical device!
Could come in handy for keeping my cabinets with audio tapes dry. Reel to reel tapes benefit greatly from dry storage.
Brilliant...Both the solid state dehumidifier and Clives explanation. As in another post below, it also reminded me of the Peltier effect as I was watching. OOOhh... I'm getting some ideas!
Lots of crappy made-in-china dehumidifiers use the peltier panels, most 'mini dehumidifiers' you will find on Amazon will use the Peltier effect. This is because compressors are expensive whereas peltier panels are cheap.
The trouble is that peltier panels only remove a considerable amount of moisture from the air when ambient temperatures are high. Most of these listings advertise the daily water removal rate at 30C and 80% humidity, conditions we don't really get in the UK. I've previously owned one, but returned it when it removed just 40ml of water after 24 hours of use in a humid room.
The only good dehumidifiers for reducing the humidity of a room in your home is one that uses a compressor.
Interesting, never heard of these, thanks Clive.
Imagine hundreds of these inverted on a barrel converting air to hydrogen), this could be a game changer as the tech gets more mature.
Bib Clive you are a fountain of knowledge, thank you.
your videos have become a mainstay for me!
These are almost like peltier plates but for humidity/liquid.
I wonder if (after the device has been operating for a while) the oxygen rich environment on the interior of the cabinet is going to promote oxidation of metal parts.
Oxidation is exactly what they are trying to prevent. I believe O2 is a double bond making it more difficult to oxidise anything.
Technically it is single bonded with two unpaired electrons (triplet) but a double bonded version can be created under special conditions which has alarmingly different chemical behaviour (singlet).
I doubt if the oxygen concentration would rise significantly given the relatively small quantities of water vapour and the fact that it already comprises 20% of the atmosphere. The worst hazard would be that a smouldering object might burst into flame a little sooner.
The manufacturer's site says the device might increase oxygen by 1% and the hydrogen exiting the unit recombines with available oxygen to form water vapor.
@@TheHouseBlog im glad its not a high O2 concentration. I wouldnt want an Apollo 1 style disaster.
@Jeffery. What we call 'fire' is a fuel reacting with O2. It is highly reactive, from rust to bonfires to fats going rancid.
out standing I have a dehumidifier in my camper and it said no moving parts now I understand how it works thank you
All new to me. Thank you Clive.
More friggin alien tech being injected nonchalantly into the innovation stream, just like those radar modules.
This is a great device. Would be really useful for keeping 3d printing filaments dry in a box for example in storage. Sure you need power, but it is easier and probably botter to keep for long time than silica gel thingy.
movax20h good idea, if the box is small and sealed well the smaller models I would think should work fine.
Awesome BC. They sound like a pretty good company, especially at customer service/support. It’s a very cool technology. I need to look at it closer. Thank you as usual my friend. I love your videos. I look forward to every one of them. 👍
At first I was skeptical because the temperature was rising and that in it self will cause the RH to drop but after the extended run time where the temperature dropped back to or below the starting temperature, that removes that obvious variable. So, very cool. Thanks for demonstrating it.
I wonder how long until some art student tries to make a self-filling water bottle out of that awesome device.
Also, it's a pity you lost the footage of your bath. Next video?
I wonder if the mesh stuff is simply to provide a large surface area to help moisture evaporate
looked like felt to me.
Molecules aren’t passing through whole..they are being split..
here i was expecting you to make a video about a cheap peltier dehumidifier and i was pleasantly impressed
Great. Needed something like this for a humid room in the house.
I suspect these are actually specialized fuel cells operating in reverse. I wonder if exposing one side to a very high humidity (say 95-99%) will cause an electric potential to form across the connection leads?
American Locomotive Water is the lower energy level molecule. More likely success is putting lots of hydrogen on one side, then getting electricity from the terminal and water on the other side.
These look like they would be great for storing photographic equipment in damp / humid environments. I have lost a few vintage lenses to the dreaded fungus!
Silica gel packs are probably cheaper, 'rechargeable' and need no power supply.
Im actually finishing the writeup for my weather station project for Uni and this would be a great thing to reference as obviously the contents don't need to be in contact with water. Thanks for the video, definitely going to mention this technology
We had some products that needed to be kept very dry and unopened for many years. But they still got corroded. Despite extensive and expensive research some bright spark came up with the idea of sealing them up in the furnace area with very dry air. Worked a treat.
Good for making a 3d printing filament spool dehumidifier
Exactly what I was thinking. :)
I was thinking about that too! Would be great to store the spools, but I do not think it would dry spools that are already wet.
I thought the same, and I wonder if a small solar panel and some voltage controlling circuitry could run it. Julian Ilet would probably be all over that.
was thinking the same thing.
was thinking the same thing, a wee bit expensive though at 66GPB
Why has the 3D printing community not pickup on these yet hmmmm :)
because 3d printers can't exist on a flat world :(
Very very good move on the part of Rosahl & your shameless plug, to provide you with these examples. Been looking for something of this sort for ages. Internet shopping spree here we come!!
It is kind of interesting how much it behaves like an led. It is also pretty interesting how it pulls the hydrogen atoms off the water, which is then transported to the other side where it combines with an O2 molecule to form another H2O. It reminds me of the electron transport chain (present in several cellular metabolic processes).
Whatever you do, don’t tell FONTUS....
I just thought about when I finished the video, just to scroll down and see this comment
they have gone bust already :)
amojak I know, but a good scam never dies. Unfortunately.
Does exactly the opposite of what they need. This breaks down the molecular bond and separates the oxy and hydrogen atoms. Wouldn't be very much good for condensing water.
You would need two of these, one to concentrate oxygen and another to concentrate hydrogen. You then mix the two and get maybe 1ml of pure water per day, which is fucking stupid.
Is external humidity a factor in how low it can drive internal humidity?
The difference between internal and external may have an effect on efficiency.
If it was trying to pump water through reverse osmosis you would think so, but it's pumping hydrogen. Wouldn't hydrogen concentration be the limiting factor?
AIUI, the hydrogen is reoxidised at the outer electrode back to water. I expect there is a rate limiting level of hydrogen ions that can reside in the middle.
Well that's just given me some ideas... Thanks for the upload!
I learned about this from my dad. He says a neighbor invested in this because he was get so much moisture he had to replace his floors every few years. After adding this kind of device, his moisture problem evaporated (or had it's H2 ripped out). :P
How much of the humidity drop is attributed to the rise in temperature inside of the box? Rising temps will decrease humidity as well.
I wondered about that, but the dissipation of the device is equivalent to an indicator LED so it definitely wouldn't account for a drop to 33% humidity. The humidity meter does have a temperature display on it too.
The temperate may rise at first due to the higher power use but at the end of the test, the mAh is lower and the temp is lower too.
As you showed the results at the end, I did notice the dramatic drop in humidity with really no temperature change. So the device works REALLY well!
I was wondering the same thing. Shoulda scanned comments first.
@@JeffreyGroves the efficiency is probably shit thought, even compared to traditional deumidifier (but that should not be a problem)
Very interesting product and video.
So, if applying 3VDC to the terminals causes ions to move through the matrix to the humid side, resulting in a humidity gradient across the membrane, perhaps the inverse is also true.
Hypothesis: removing the external voltage supply and imposing a humidity gradient in the correct direction across the membrane will cause the same type of ions to move through the matrix to the dry side (in an attempt to reduce the osmotic pressure across the membrane) and until the humidity gradient reaches zero, the ion flow will generate a voltage at the terminals that can be measured with a meter of suitable sensitivity.
Is that a hypothesis that you could attempt to test for us?
This thing is basically a hydrogen fuel cell running backwards, so yeah.
Oh that gives me a great idea for a humidor. If it doesn't work on the inverse, I could just have two ports, with one pointing out and one pointing in, and have an mcu switch power to both depending on the humidity.
Drive it with an H-bridge and have just one device do double duty.
Great video , you always seem to find such interesting stuff. Even the stuff from the cheaper end you make interesting.
Thanks Big Clive for great videos!!!
Your audio is coming out balanced funny ever since the last video. I think you must have a stereo microphone on the camera. I wonder if you could set it to mono? No need for stereo with just a voice over really
Thanks for noting that.. I was wondering about the same.. I love to hear clear Clive voice and the new microphone based recordings are very unbalanced between L & R and it keeps changing as Clive Mitchell moves around and he does that a lot even though he usually sits down for presenting his videos.
Is that it? I was beginning to think my headphones had a fault.
he tried a remote mic in the past, if he still has the RØDE or what it was, he could place it about 1m infront of the camera, where it would give us the sound of being in the romm with him…observing his actions
Just watching some other video's. It seems I have a problem here. Probably windows 10 and my Soundblaster Z disagreeing again :(
Sound is not good at all and I'm on a mono tablet!
Did you break it Clive?
No. I reassembled it and it worked fine.
@@bigclivedotcom Whew! That's good. Seems delicate but pretty amazing.
He tried very hard... So he could have his bottom smacked...
FASCINATING! This is super cool!
18:05 That's why we are here, hoping to find a glimpse of Clive taking a bath.
I'm buying these for water collection experimentation . 3V , I can use a lithium cell and probably solar light , WHO'S THE FIRST TO MAKE A SELF FILLING SOLAR WATER BOTTLE ?!?!?!?!?!???!!??!
Maybe a water collector for Your car ?
Bicycle ?
Cant work as it needs oxygen on the "wet" side. So once that is used up in the bottle... no more water.
But it chemically destroys the water?
Interesting , Thank You very much .
Well I for one am disappointed! Generating hydrogen and there's no KA-BOOM! Where is the KA-BOOM?!?
I was expecting an Earth-shattering KA-BOOM! --Marvin (the Martian)
I'm sure that research is underway, with or without the pie dish.
No boom *today.* Boom tomorrow. There's always a boom tomorrow.
Earth shattering KA-BOOM
I've never heard of this before, thanks for the video.
Ok, Those are really cool and I could see a ton of applications for such a product.
Fontus "self-filling water bottle" could have worked...Too late now.
LOL 67% Humidity is "relatively high". 😆😂😆 I think Clive needs to come to Florida, USA and do this test. We normally have humidity in excess of 80% 😉
Not indoors. Most houses in Florida have air conditioning which dehumidifies the air. Also average humidity in the UK is similar if not higher than Florida.
Korishan what part of FL if you don’t mind me asking?
Basically most of the east coast, here in virginia it's always 85%RH or higher
turbopower130
No doubt humid and hot, much of UK is very often wet and cold, known in Scotland as 'dreich'!
I'm on the Virginia coast and right now the temp is 79deg and the humidity is 89%. We do have a hurricane knocking at the door, but last week nightime temps were dropping to ~70 and humidity was running 92~93% at night and 80% during the day with a temp in the middle 80's.
Fab video and invention. Glad at last to see electrons being put back where nature intended them to be - whizzing safely around a nucleus.
Am very very impressed never heard of anything like this
great video like to see new inventions and new technologies And you pulling it apart thanks for the info
All in all - I hope you had fun! ~ that was cool!
fascinating, love learning about new(to me) technology.
This is awesome, if I made videos, they'd basically be this with worse audio so I really enjoy the way they're done - I'm glad I found this channel and this video helped me, thanks
Never get put off making videos by your own voice. Everyone else just hears a normal voice.
I’m going to have to have a look at these guys
This is very cool
Hi Clive, never seen this component before. Intriguing! Note that %RH readings are significantly temperature dependent, and the in-box temperature dropped about 4 degrees as the night progressed in this video. This will have had the result that the actual %RH readings were even lower by several percent. As temperature decreases, %RH reading increases, all else remaining equal. Thanks for the video!
Anti-fogging headlights, what a sweet idea!
Love this channel love learning about electronics an what different components do
thanks for sharing! maybe someone will watch and find new applications for this technology.
Fascinating video. So many interesting applications I can think of!
It would be neat to see one of these built into a line pressurization system like the ones we use to keep water out of waveguide and coax. Right now we use what's basically a small air compressor with a filter canister filled with silica gel dessicant. It's kind of clunky and you have to keep an eye on the dessicant cartridge and change it every so often, something like this would be much cooler and less of a maintenance hassle.
Yes indeed a fascinating bit of kit.
Thanks also for doing the close up focusing Clive. Since I recently recommended this technique, I'm modestly taking the credit! If only you could also be persuaded to ditch what looks like auto-exposure from 17:07
Very interesting devices. I learned something to day!
That's a little fun device! Like an electronic version of those silica gel bags, except it's permanent, as long as you have power ☺️
fascinating devices , great video
Very interesting Clive, I’ve built a cabinet based arduino polytunnel control unit that sits in the polytunnel where the humidity is controlled at 70-80%. I’d always worried about the humidity in the cabinet so fitted a membrane “breather”. This technology sounds like it could be a good solution for me.
Fascinating!
Great finally see corporations that are proud of their product ( and one great product that is ) to start supporting you. This video cave me few good ideas all ready ... just need to check where to get these and how pricey they are for given volume needing dehumidified ...
I really miss that in companies. They just send you stuff because you show your interested in the tech and wanna show it off to friends. Makes me want to go back to HAM radio.
This is really cool.. I had never heard of these devices before but they seem like they could be incredibly useful.
I would bet that the fibrous material over the outside face is just a wicking material, to help draw moisture away from the device on the output (so it doesn't just build up on the outside surface, possibly reducing its efficiency).
What no video of the bath! Well actually that's probably a good thing! 🤣 Yet another awesome video Clive! Thank you as always!
That outside part is called non-woven geotextile. It allows water to pass through it. It's there to prevent people from disturbing the membrane.
I would LOVE to get my hands on a dozen of those. We are having moisture issues on some shipboard winches, which once were equipped with heaters for moisture control. The heaters are gone, and the drum switches to automatically control tension (fascinating devices in their own right) seem to have no humidity controls at all.
Fascinating. Only thing extra I would like to have seen was another identical box sitting alongside without power acting as a control, perhaps protected from your lighting rig.