The test wasn’t very good because they taped the outlet at the bottom of the big cyclone. Therefor dust particles that normally would have gone to the collection bucket was left in the cyclone and could make its way up to the smaller cyclone. I’m not impressed by the research of Dyson for its cyclones. This is just a matter of tuning your cyclones to the particles size and weight distribution and the airflow. I am impressed by their marketing strategies though.
@@Conservator. It actually doesn't matter for that little amount of particles that they used in this test. The taped cyclone acts pretty much like a very small volume hopper. At the bottom of such a long cyclone there is no movement of air anyways, just gravity holding onto the particles or letting them fall into a container. As far as collection efficiency for Dyson, i agree that it is pretty common science. But considering pressure drop and those battery powered dysons nowadays, i am sure there is a lot of simulation to get optimal energy use. of course you can always make the cyclones smaller to force a faster airspeed, or longer to increase resident time on the cyclone, but this will cost you heavily in pressure drop and size of the device. Generally speaking a large pleated filter can always achieve less pressure drop and better smallest particle filter efficiency than a equivalent cyclone or multi cyclone array. But for how long until it is clogged? Whats the useability on it? Designing cyclones is always a balance between useability, size, smallest particle size, filter efficiency, pressure drop, battery life, hepa filter etc. - i am pretty convinced that Dyson gets a very good mixture in their products. With some drawbacks, such as the V10 and V11 albeit having a larger cyclone than the v8, they fail when you use them upside down, for example when cleaning a cupboard or the underside of a roof from spider nets.
Thank you for posting! Did you also test it with the big cyclone attached to a collection bucket? I would guess that that would lead to better results.
Amazing! But, there should be a HEPA filter at the end of the hose, so small particles wont get into the vacuum cleaner.
And now you know how much research Dyson has done to make those cyclones Perfect
The test wasn’t very good because they taped the outlet at the bottom of the big cyclone. Therefor dust particles that normally would have gone to the collection bucket was left in the cyclone and could make its way up to the smaller cyclone.
I’m not impressed by the research of Dyson for its cyclones. This is just a matter of tuning your cyclones to the particles size and weight distribution and the airflow.
I am impressed by their marketing strategies though.
@@Conservator. It actually doesn't matter for that little amount of particles that they used in this test. The taped cyclone acts pretty much like a very small volume hopper. At the bottom of such a long cyclone there is no movement of air anyways, just gravity holding onto the particles or letting them fall into a container.
As far as collection efficiency for Dyson, i agree that it is pretty common science. But considering pressure drop and those battery powered dysons nowadays, i am sure there is a lot of simulation to get optimal energy use. of course you can always make the cyclones smaller to force a faster airspeed, or longer to increase resident time on the cyclone, but this will cost you heavily in pressure drop and size of the device.
Generally speaking a large pleated filter can always achieve less pressure drop and better smallest particle filter efficiency than a equivalent cyclone or multi cyclone array. But for how long until it is clogged? Whats the useability on it?
Designing cyclones is always a balance between useability, size, smallest particle size, filter efficiency, pressure drop, battery life, hepa filter etc. - i am pretty convinced that Dyson gets a very good mixture in their products. With some drawbacks, such as the V10 and V11 albeit having a larger cyclone than the v8, they fail when you use them upside down, for example when cleaning a cupboard or the underside of a roof from spider nets.
@@maksdampf
Thank you for the information. 👍
Thank you for posting!
Did you also test it with the big cyclone attached to a collection bucket? I would guess that that would lead to better results.
Tebrikler, güzel olmus. Bunun STL dosyalari mevcutmu acaba?
what is the height of the bottom part (and the height of the central tube ?
jsut to know if my printer can print it or not (before paying)
DO you mind sharing the files? also, how many meters of filament did you use?
cults3d.com/en/3d-model/tool/multi-cyclone-chamber here is the link to the files
@@graphicboy £13?? That's why it's only sold 9 lol
Someone sell the stl ?? Low cost?
nerden veya nasil alabiliriz tsk ederim
abi bana bu aletten lazım türkiyede bulma şansım varmı
stl file available? (for free)
>(for free)
usta guzel is cikarmisin
eyv.