Wild 2-Stage 200mm Blower Fan Redefines Power | Fan Showdown S6E6
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- Опубликовано: 17 сен 2024
- In this jaw-dropping episode of Major Hardware's Fan Showdown, we put 4 insane subscriber-submitted blower fan designs to the ultimate test. The spotlight is on a groundbreaking 2-stage fan featuring a colossal 200mm impeller paired with a smaller secondary impeller. I wasn’t expecting much from this fan, but it absolutely crushed the competition, delivering the best performance of the season! Could this massive blower fan be the future of the fan showdown? Watch now to see the epic results and find out if blower fans have a hidden advantage this season!
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I'm for Group B: anything goes, however the "normal" fans, i.e. fans that fit into the constraints, should get their own category, because they could be used in a regular case.
I 100% agree with this. Just like racing we need “Super Stock” 🚗 and “Unlimited” 🏎️ classes! 😎
Same here.
Seeing a design that can actually fit into standard dimensions. But i'm okay with making the fan slightly thicker, since most PC cases have enough space to acommodate them.
But i also like to see creativity.
This. It also tend to get more views for our major
100% Agree
@@VimCommando Great analogy. Totally agree.
*Three Scoreboards:*
1. *Standard Class:* designs that traditionally stay inside the dimensions and housing, like the A12x25 fan.
2. *Extended Class:* designs that only protrude forwards from the housing without being bigger in diameter than it.
3. *Unlimited Class:* designs that do extend outside of the housing, anything goes as long as its powered by the housing's motor.
I really like having 2 classes, and I think each class should get their own scoreboard. That being said depending on time required it might be worth it to just merge classes 1 and 2, with a simple rule like no more than 1/4" or 1/2" beyond the frame. Or even just have classes 1 and 3. Either way I think separating their score boards and ranking would make it a lot more "fair"
when buying a computer case, you could have spots that the fans barely fit, and ones that have room for extension. the only time I can see room for the 'winner' was when there was room for a bigger fan.
I came here to say the exact same thing.
2 scoreboards. One for out of bounds and one for in bounds fans. Also all fans should get both static and dynamic airflow tests
This makes the most sense. One you could put in a case and use it, the other is “how far could we take it”. Both are fun imho.
i agree with this idea the most aswell
3 boards! 1 for each and a "everybody FFA" board... the FFA board is just for kicks and giggles.
Maybe also show them together.
Was coming down to say exactly this. Take a page from speedrunners here, like how they have glitchless and any% speedruns do the same thing here, anything goes and only fans.
Also, if you goes with the two scoreboards, please title the purist board "Only Fans". It would be really funny.
I don't see why we can't have both.
Fans that FIT the mold and PC cases should have their own list. It's interesting to see how they fare against fans currently in the market.
Fans that DON'T FIT the mold where anything goes other than being powered solely by the motor don't really have any practical meaning other than bragging rights... but it's also cool to see how far these fans could technically go if the only thing holding them back was the fan motor.
The stupid thing about premieres, is that A: video is not there when I get notification, and B: when video is there, I am not notified, so I miss the video
@oljobo, this is your notification for the video
Also I usually wait until after anyways because they re set my progress when they end.
Yeah, that there... I'd have no problem with getting a premiere notification if it wasn't utterly useless...
What am I supposed to do? Wait there with baited breath for however long until the video actually starts?
Premiers are dumb in general... It's a freaking RUclips video, the hubris! I also agree with OPs point
I hate premiers
THe Compressor type Big Boy Fan needs to be glued cuz i can see the smoke escaping from the cracks in the smoke test
Or just more clamps, the issue might just be that it's being pinched closed at just 2 points. Being pinched like that might be causing a wider gap in the space between the clamps.
I think some heavy duty tape along the edges would do just fine for testing. Not a permanent solution, but good enough and won't need to break anything to disassemble.
@@GremlinSciences yeahhhhhh but still my guess is it can reach 9 points on the test or more if it dont leak
Seal it with some silicon. That way it can be stripped back off fairly easily.
Doesn’t he say that in the video when talking about it just past midway..?
Make two groups.
Group N: Must be able to be installed in a standard PC case with the fan shown at 2:30 being a good example.
Group B: Anything goes.
I would add that Group N should not exceed the sizing of the standard A12X25 fan. If you can't mount the fan against a radiator or heatsink in a pull configuration, it is in group B.
Yeah that's a Rally Good idea 🙃👎
@@shaneeslick because what, pull configurations or bottom mounts don’t matter in today’s PC case market? Nearly every new case is using bottom intake, if the fan protrudes out, it can’t be mounted.
@@sheepstardetail That's fair. Perhaps there should be three groups. One for mountable in a push configuration, one for mounting in push or pull and the third is anything goes.
@@N0V-A42 that would work! Ok major, get to work!
I think 3 classes are needed.
1. A design that fits within the space of the original fan.
2. Has a limited and set size that extends from the face of the fan housing.
3. No rules chaos.
I am blown away that even with the big compressor taken off, it still would have hit second place. I'm curious if the designer did any iterative simulation testing to see if there could be a more ideal ratio of sizes between the big and small compressors.
IIRC this is how two-stage usually works - the first one compresses less, but it sort of "conditions" the flow before the second stage
What surprised me most about that was the small difference the big wheel made. The big wheel and channel between the stages probably slowed down the RPM much more than necessary for the added pressure, mainly due to the narrow channels for the air.
@@fishyerik With something like this, you're running afoul mostly of our collective lack of understanding of how fluid dynamics works. Don't get me wrong, we do know a lot, but there's still a lot of unanswered scientific questions (e.g. Navier-Stokes solutions, turbulence). Not saying you're saying anything wrong here, just saying there's a lot of unknowns still. For my part, I think the purpose the larger compressor serves is to smooth out possible turbulences/vortices before they happen at or in front of the intake to the smaller one, as they can function like friction and take away energy that would otherwise carry the air through. That's part of why I was wondering about iterative simulations of different size ratios to possibly optimize that flow.
I think the problem is the back side of the big compressor creates a "Tesla turbine" which is actually working against the flow direction. If the flow was guided by a non moving channel back to the center of the next stage, it might work better.
I didn't do any tests, I just went into fusion 360 and did the best I could, I was surprised how well the small compressor worked.
I think the big compressor doesn't have much effect because they have a lot of cracks where the air leaks out, I hope he can do another test covering the cracks with tape or something.
1:37 Group: BOTH
At this point the only way to be fair is to split them into different categories, maybe just smol vs big, or maybe more granular, like A) "blade only" within the frame, B) slight protrusion with height limit, and C) no rules
Open, Extended, Case
Maybe for a bit of flair, say stock, mod and pro mod like drag racing. With the parameters that ekupka stated.
I'm glad you put my crazy design in your video. I was very excited, and even more so when I saw that it worked very well. Please, do a test covering all the holes maybe it will reach 10 mmh2o 😁, you can use duct tape or hot glue that can be softened with a hairdryer to dismantle it without having to leave it stuck to the fan.
mechanical engineer here:
9:30 its quiet because you dont have any resonance. The curve is flat all across.
Also, 47dB is half the sound energy than 50dB.
Because dB measurment are logarithmic, its not a linear scale.
i kept thing simple for everyone to understand*
Yep, every 3dB is a doubling of sound pressure... though, most people don't perceive a doubling of volume until around ~10dB difference.
ty
@@BionicBurke This is because sound pressure does not equal sound volume. Volume is literally perception as it's a combination of sensory input and interpretation from the brain. The actual pressure variance may have doubled, but the ability to both sense and interpret that change is... muted. 🤣
@@BionicBurke
Very much agreed, and well said.
It’s true the power requirement with every 3db doubles, 3db is also the minimum level of perception that it’s louder. Hardly a big increase if it’s barely noticeable, but it’s 1000 watts if it was 500 before. 3db.
My live audio experience has been about 10db is twice as loud, but more like 8db.
Say 100dba vs 108dba, that’s a huge difference.
Perception depends on frequency as well, our sensitivity to different frequencies is different
Also different frequencies propagate differently trough the medium, case dumping the sound and so on
Also also: two stage compressor against open blade design in air pressure competition, come on… ))
Group B anything goes. I love seeing the crazy fans people make. Too many guidelines limit creativity.
I love the "weird designs" category, the creativity and ingenuity is always fantastic
Group B here! As cool as potential PC fan designs are, it’s arguably more fun having those WAY out there designs too, as those are what make these videos actually fun to watch!
Maybe make 2 separate “tournaments “?
On one side keep the “normal” fan designs like we have so far.
And on the other, let the mad engineers go wild lol.
That would be the best of both world and wouldn’t take that much extra work for you.
Tbh the crazy out of size fans carry the show most of the time
The way I see it is you have 2 categories: ones that fit within the boundaries of the a12x25 (including height), and then everything else... literally anything, as long as its powered by a12x25
Ok so the centrifugal madness.... Looking at it makes sense that it would be high pressure. Like the air behind it would just slow and steady build up. But what about CFM how does that look?
Also WATER PUMPS!!!
the reason that fan did so well is that the HUGE diameter gives the first bit of air flow a lot of momentum, similarly to how huge turbos make insane boost. the wider the rotor, the faster it flings the air at the outside bits. so, that momentum being forced into the second section simply directs the flow through the slit and doesnt allow any back-feeding, so it's like a compressor on a turbo. instead of just one big snail exit like a turbo, this one had 4 around the edges that captured that high velocity air and then directed it to the second fan. stellar design!
Group B - Anything GOES
Damn Skippy!!
Car people know
BBS Turbofans?
group b is kinda hot
The more absurd the better!
I'm impressed by how the Centrifuge Madness was able to beat the WFDU in both static pressure and rpm. Nice job👍
To answer your beginning question, there should be different categories for the 2. If it expects expands beyond the frame and needs additional shrouding parts etc, it's gets compared to similar designs. If it stays roughly within the frame and doesn't need much extra in terms of extra parts, then it gets compared to that style fans and the original
Different categories makes sense.
Personally I'd be more flexible with the power rule and less with the form factor. The important thing in my mind is creating a fan that could be adapted to work inside a normal-ish PC. There's relatively little room there for different shapes, but changing the motor or increasing the voltage is something that could be done quite simply.
I wouldn't even separate the groups. Keep all together and whoever wants can sort it out themselves
10/10 can't ask for better content than the fan showdown! (even if its just waiting for the episode to drop) I'm at the edge of my seat in anticipation!
I really like how each season has a specific "theme" or set of rules... If we're just looking for static pressure this season, then anything else goes.
Season 7 can be "it looks like a normal fan" season for Group N.
Now just design a hermetically sealed case with a bunch of high static pressure fans forcing air in at one end, and radiators with dense fin stacks on the opposite exit.
Will we see better than traditional cooling? (Make this season 7!)
What I like about the variety of the fans is their potential in other areas besides computer fans. The simple testing and analysis has been nice to observe.
Do 2 episodes with all of the previous highest scoring fans, split into 2 categories. 1. Fans that fit inside the frame. and 2. Fans that dont. But back to the basics of cooling capability
Multiple scoreboards sound so bureaucratic and could turn a fun little benchmarking of funky fanmade fandesigns into more of a chore. I think the appeal of the show lays in the variety and craziness we get to see and not cold hard data, as if we are only striving for the best.
What I'm a little concerned about is:
- if elaborate multipart fans are "banned", it does take away a little craziness
- if they aren't banned, they might become too much of a norm
I think, carrying on like currently is fine. Lots of variety, occasionally a crazy multipart fan, but all presented in such a way, that simple fans are just as appealing to watch.
What about having divisions? Have a Limited Division that requires the design stay within the frame, and then have an Open Division were anything goes, so long as it is powered by the A12x25 motor.
I like the idea of having separate "weight classes" for "fans that fit within the space of a normal fan" and "anything goes", because I love both the wacky engineering AND being able to see the clever and interesting designs people have come up with for "normal" (are any of these normal?) fans, even though they just can't compete with the new monstrosities.
There should be 2 leaderboards. Group N & Group B.
I'd love to see the crazy ideas, but also want to see the best of the best with a fan I could possibly fit in a PC.
I agree with this 100%
This is was the spirit of the first showdowns. I love to goofy stuff, but I also want to know what fin design is the one to rule them all.
Or even better, the test schould envolve a prettymuch standard bigtower, and if you have a big fan you can moddel the fan as a sidepannel, frontpannel, toppannel...&c.
This big tower should be a popular model that has all kinds of fastswapable pannels...
☑ Group B 1000%. I'm here for all the Creativity!
Have mercy on your european viewers. Release it right now.
I personally think the fans should have separate categories.
The "feasible to print and mod this yourself" category
And the Pure Optimisation category.
Might be an idea for Season 7
How about two classes? A "stock" class for the fan in the frame and a "modified" class where...
Yep, this! Maybe stock has to fit within the dimensions of the frame at all angles? Maybe a super strict interpretation would say it has to be within a certain weight range of the original, too. But maybe that slope gets too slippery and we start talking about current draw by the motor.
For the next season of fan showdown i want to see more powerful Fan motors like Noctua's industrial series!
How about we make 2 groups, Group B for anything goes and Groupe N for the normal fan designs
I vote for group names: vanilla and schpicy lol
I know it's really not worth going back and doing static pressure tests on all previous seasons fans, but I'd love to see a community spreadsheet with all seasons fans, with static pressure and air speed recorded alongside things like normal size, oversized, blower, etc so you can sort and filter to see what you want from the data
I like both camps. And I think that the chance we're going to see anything remarkable from camp A is pretty low. The people that sell these fans have certanily optimized their designs already, but still you get a lot of creative submissions. Camp B is more entertaining and exciting. I think you should accept fans from both camps BUT I think they should be in separate classes or categories. They shouldn't be competing against each other. That's kinda unfair.
Regarding the centerfuge madness. It's possible there's some leaks. You should make a separate video to make sure there aren't. But really I just want the separate video so we can watch you SMASH IT!
At higher pressures I've seen air leaking out around where the wires go through the frame, and a difference in pressure when I taped the seams too, so glueing might make a difference.
@@mobiobione Yeah, you can only expect so much of a seal with 3D printed parts literally clamped together. Especially when there aren't any features in the geometry to make sure they're paired up nice and tight.
@@MrDowntemp0 I was thinking about huge screw threads, 200x1.75mm or something
I tend to be in group B, but I would like them separated into different “leagues” for lack of a better word.
A) fans you could print and use
B) fans that are wildly effective but impractical for the typical person to use.
i'd watch it except that 3 hours from now is after midnight here, but i'll catch it in the morning ;-)
CFM is one thing, static pressure is another, but static pressure does not mean moving air which will cool something. Ultimately it is air mass moved per unit of time that will cool something.
The next season should be either : a requirement of static pressure and see the most CFM, or a requirement of CFM and see the one with more static pressure. The NEEDED static pressure is not much since radiators are mostly free flowing, so measure air resistance of the intended radiator, then place a hard line of minimum static pressure required, then do a chart of those who met the static pressure AND order them by CFM. and if you like more rules, add a size limit. Fans can be pushing or pulling so the side facing the radiator must be possible to attach to it.
I think any design counts, we need creativity too!
Ok, ground rules to keep it fair. You need 2 categories with one common theme, Internal and External case fans but using the same motherboard power.
Internal - Basically a fan keeping the same dimensions of a NF-A12x25 PWM fan, so it fits inside a case.
External - Any fans that can be stuck to the outside of a case (side/top panel/exhaust mounted, etc) with a little dremel modding, if required. Again using motherboard power. This is for huge fans like the Wonder from Down Under or Centrifuge Madness. Cases like the ones in the early 2015's with fans on the side panel.
I think this would make it both fair stats wise and viable for anyone that wants to try the designs
Static pressure is good and all but volume of air is also highly important. Moving a large volume of air over cooling fins of a radiator is what you really want.
That is why static pressure is important for radiators because the fins cause lots of back pressure and there is a point where moving air faster actually works against your cooling as it doesn't have enough time to transfer the thermal energy. It's the same reason why you want to pump more water volume wise and not velocity wise with a water cooling system.
@@SilvaDreams "our cooling as it doesn't have enough time to transfer the thermal energy. " the larger the delta t (the more air goes through) the better the heat transfer off the radiator is. you don't want "slower speed so the air has time to get hot" or anything like that.
the static pressure just helps in getting the air through the radiator, more air (and faster and that also meaning faster).
the "too much velocity" is an old wives tale from car guys who had some problem or another in their loops where a restrictor helped with more even water movement through the block, it does not help the overall energy transfer through the system to slow down the medium(shown by mathematics, physics, practical models), the cooler the air that's touching the radiator the faster the heat is moving to the air at that spot (anyway the old wives tale car guys who think it applies for fluids don't think it applies for gasses anyhow so they'll happily add more fan, when it doesn't really apply to either)
if you had high pressure fan you could stick more fins on the radiator, so it's all just a balancing act with the space you got and power use and noise you can deal with. 20 watt 40mm deltas are pretty wicked.
@@lasskinn474 I think this contest has long since ceased to be focused on cooling computers, only on absurd tests. And I like it, sometimes you have to optimize the air speed, sometimes the flow, sometimes the pressure without any flow at all... it's fun.
I kinda like both. I like the idea of having alternating seasons: one mainly featuring weird designs and one mainly featuring designs that fit in the A12X25 frame (i.e. stuff that could fit in a standard computer case).
could be nice to restrict the x and y dimensions to that of the a12x25 but allow fans that are deeper. Would also be nice to come back to radiators and actual stress tests, i feel like that gives a better performance metric.
Smart
I'm on both teams.
I really like the crazy stuff people come with, but I also find it facinating how much we can optimize a fan that fits in the fan case.
So I think we should have separate scoreboards.
Crazy fans - Anything that doesn't fit the case (even the axial one of today's video, because it budges out)
Standard fans - Anything that fits the limits of the fan case. Maybe we could add an 140mm fan there to test more airflow focused designs
Glue it together. We can see the gaps that will leak.
He could tape it once the clamps are on for something that can be removed but gets its peaked performance
@@maduyn I was watching this wondering if he was aware that tape is a thing.
Yeah, you can see air escaping in the smoke test, it's gotta be leaking even more when actually pushing against a pressure gradient
Holy cow! With how "constipated" that "Centrifuge of Madness" looks, it's hard to believe it would perform so well!
anything goes!
I think there should be 3 categories: Fits within the frame > Fits within the footprint of the frame > Anything goes
Two groups, and three leaderboards. Group A for the fans, group B for the anything-goes, and leaderboard C combines them all so we can see how they all stack up
Both camps are entertaining and have valid arguments. Maybe run two classes of competition simultaneously?
Man, this makes me feel like I should put more love into my submission.
In terms of 'normal' vs 'augmented' fans, one solution might be a secondary rating that's normalized by weight. This would allow all the fans to compete on the same score board but would help prevent oversized designs dominate everything else. On the other hand this could lead to people making thinner and thinner designs which would also ruin the fun over time...
Really it might just be a case of rating fans on uniqueness.
I just need to share my appreciation for your brilliant and apt use of Group N and Group B as the options lmao
1:45
#1 "Why don't we have both?" (one line of showdown for "normal" fans & another line for "experimental"(?) fans.)
#2 Personally, I want to see the boundaries pushed by crazy contraption fans that no one have thought of before, that's where innovation & inspiration lies.
Would be AWESOME to see this series inspire to create some entirely new concept of fans, that haven't been thought of before :D
I am a member of both Camps. Two different things. Camp "fan" is for application, camp "feel free" is more a proof of concept. Both are fine
I mean I like both. some people are saying a seperate catagory for fans bigger than the case, I disagree. you have the whole excel sheet already. just add an extra info box to all fans on the list. and put like a check mark on the ones that are bigger than the normal noctua. that way someone wanting the best, but still normal ish looking can see those, and also see if one isnt normal.
I love the wacky over the top designs, whether they fit in the box or not they have kept this series interesting for so much longer than I thought it would last.
I don't think the centrifuge madness needs to be glued together, but I think you should try it with 4 clamps. In the smoke test it was clear that a significant amount of smoke was coming out of the unclamped corners.
I think there should be two categories.
1 - normal fans
2 - crazy fans
This way, we can check out potential replacement fans for our PCs AND also get to see the wacky creations.
- How good is this fan?
- Oh, trust me, it will BLOW your mind
I would still like to see a Noctua NF-F12 tested to see how Noctua's engineers cooked up a static pressure fan and how it stacks up to the rest of these!
1:39
Group B for sure. I find it far more interesting to see people push the limits of how effective a fan can possibly be.
Not surprised at all that big fan was the winner. You’re powered limited by the motor, to generate high pressure you want to put the most amount of energy into the least amount of airflow
I definitely understand both groups of thought. I'm personally on the side of having an open class for anything that doesn't stay within the frame, and a closed class for more traditional designs.
I'm definitely in camp #1. To create a fan that fits on regular heatsinks and within a case that can outperform commercially available fans is much more impressive than building out a gigantic, shrouded system. That said, I like the interesting and creative designs of the bigger units as well. I'd say create two categories.
This has turned into a "who is the most outside the box weirdo's" competition! Bravo 👏🏼
The answer to the problem of the 2 camps of fan design, is a very simple answer. Starting with season 7, there should be 2 separate classes of fan showdowns; class 1 would be “standard fan designs “, class 2 would be “unlimited class”( aka, anything goes). Two classes of competition, two separate competitions; announce one class for static pressure and one for airflow; then swap the class competition for the next season.
I'd glom onto the idea of running 2 different categories, as others are saying. Gives you more options for content and lets people try out both very wild ideas and more constrained ones. This video shows that keeping the door open to unbounded designs can lead to amazing results!
Just have group
A: compressor fan/ static pressure
B: regular fans
C: anything goes, Madness rules
The winners in specified group.
Group B, let innovation run. We are impressed when a designer can make a standard fan frame put the cheaters to shame. Regardless, the crazy out of the box designs give inspiration.
At the end of each episode, you show the full chart showing every fan from the season. I think you should add a column where you give the "class" of the fan. I think 3 classes. Standard (fits within the fan frame), Extra (within the footprint of the fan, but entends outward some), Insane (outside the fan frame in all dimensions).
This way we get to see all the range of designs, but can still see which one is top in each category.
I'm kinda of both worlds: If the fan rotor cant fit and spin within a standard 120x25mm fan frame, its too big, but at the same time seeing some of these giant crazy contraptions are awesome, doubly so when they actually work as advertised.
My suggestion for the next season is volume constrained: The maximum size and thickness of the fan stack must fit completely within a standard 120x38mm fan volume, but is otherwise unlimited. Airflow and static pressure will both be measured, as thicker fans can develop significantly more of both.
I'm a "fan" of group 2. Anything goes. Let's see some crazy designs!!
Something to remember about looking at only static pressure is that air flow doesn't matter. By definition there is no air flow - it's static. You can have the smallest orifice in the world as long as there is enough pressure behind it. That huge centrifugal disk is going to do a great job producing high pressures. I'm still impressed by how well the second stage did! It makes me wonder what would happen if the two stages were swapped. Does order matter?
Anything goes!!!! It's fun to see all the wacky designs, and the iterations on the wacky designs that manage to actually do something
As others have said, I like both categories of fans, but think they should be scored both together and in separate categories. It's fun seeing weird and wacky designs, and how they and "normal" fans score against each other, but it's also nice seeing how they score against just their respective categories. Edit: If you want to do more categories than just two, that would also be fine (by size, number of pieces, etc.)
I like the idea of keeping them separate for scoring since there is such a big difference in design possibilities with fighting inside the shroud and not, but I also think having an overall scoreboard is nice. Would definitely be interested in seeing how that giant fan would score glued together too.
I recently learned something that totally changed my prototyping life. hotglue can be removed with just a dab of alcohol. it wicks in and breaks the surface bond between the glue and it just, peels off like magic. you could carefully glue the stages together, and then with a few spritz's of iso on any seams pry them apart
A 10-decibel noise reduction over the Wonder from down under is impressive as well!
I'm not dissing the work in camp 1. Having it fit in a pc case is awesome... but camp 2 is where i live
I think splitting it up into Group B and Group N makes the most sense. We definitely want to see both, but one is definitely more practical. Homologation fans vs unlimited spec. 😂
"there's one rule!" - Gold, man, solid gold.
Every time I watch your videos it makes me feel so much better for having fans in a pull configuration...
I think it's great to have the all out experimentation and I wouldn't want to stop that, but I think it would be great to occasionally have a season where it all can be put to practice in a design that does fit within the dimensions.
One idea that comes to mind is creating a fan showdown for specific use cases, such as radiator fans and who can create the best air pressure through thin fins of a radiator.
Or a fan for an air cooler.
Rather than just have it ran by the hub motor, make constraints that it needs to fit in the case in either push/pull configurations, radiator cooling, air cooling, etc.
Just a observation. The Sawblade fan by Danijel has had the incorrected dBA shown in the spreadsheet with 2.6 dBA in the last 3 episodes. The correct dBA for the Sawblade should be 46 dBA. Great videos keep em' comin!
Next season: multi-stage designs to pull vacuum to raise a water colum up 9 metres! Whoever raises the water column higher, wins.
I'm in both groups. I like the creativity when there are no rules, but I also like the search for perfection when it needs to be like a "normal" fan
Don’t usually comment on these videos. But happy to see you doing more fan showdown. This is how I originally found this channel, and it seems to be completely unique to you. I love seeing the designs and trying to guess which will do best. Fan showdown is a lot of fun, please keep making more of them!
"Blower" fans are normally used to overcome higher static pressure, fan fans move more air with very low static pressure.
I definitely don’t want to limit anyone’s ideas as I’m loving seeing all attempts at pushing the envelope. However, I do agree with the other comments that there should be a category for “fans” that fit the “it’s a fan” category, and then a category for “out of bounds”
For the next season I suggest that you put the fan onto a radiator, or put the radiator into the tube. This way you replicate the type of load the fan is typically under. Then after the fan you include a mass airflow sensor. Ultimately it doesn't matter what the pressure is or flow is individually so long as the mass flow is high. You want to measure the amount of air molecules smashing into the fins of the rad.
I only have two rules: 1) needs to complete under the conditions you mentioned 2) needs to look cool (yes, i miss the episodes, where you tested spinning spoons and such)/ be cool for other reasons
There needs to be 3 groups. Group A: Normal Fan Group B: Normal fans with scoops, Group C: Anything goes. Each of the groups should have a separate chart where they are ranked. There is no way I am going to be able to mount "Centrifuge Madness" or "Wonder From Down Under" in my case to cool my CPU, They are cool and it's great to see them, but I also want to see what is actually feasible in the real world everyday computer cooling application.
Haha, James, it's funny to see you using that can on your spinny stand!
My vote is: Yes.
1) Have the mainline Fan Showdown series stick to designs that more or less could believably be an off the shelf fan design
_and_
2) Have a "Fan Showdown Gaiden" series where you feature all the awesome zany designs.
You can even keep listing them in one big master list of performance comparisons, just flag all the "Gaiden" fans with a special background color or something, so you can tell which ones are "cheating". Maybe retroactively update the existing charts based on this new classification, too.
(Yes, I am shamelessly stealing the "... Gaiden" naming format from Cathode Ray Dude's Quick Start / Quick Start Gaiden series)