Singapore Expats Forum

Bladeless fan!

Discuss about computers & Internet. Including mobile phones, home appliances & other gadgets. Read about Windows security risks or virus updates.
User avatar
Plavt
Director
Director
Posts: 4290
Joined: Wed, 18 May 2005
Location: United Kingdom

Postby Plavt » Sun, 18 Oct 2009 11:23 pm

mrlily wrote:ummm... :? are saying the techonolgy is old because it has an electric motor stuck in its base?

the hoop/aerofoil bit on the top would be new or old tech?


No, SE and Sms have more or less said what I think, that is the principals used are nothing new. You may or may not have studied physics at school?
Consider how a soda syphon works; air blown through a tube sucks in other air when another tube is inserted at right angles - nothing new about that.
As sms says in so many words: 'a novelty.'

mrlily
Regular
Regular
Posts: 98
Joined: Mon, 29 Jun 2009
Contact:

Postby mrlily » Mon, 19 Oct 2009 12:06 am

Strong Eagle wrote:Well... here is where this 'amplified air' thing falls apart. If it really is accelerating nearby air, then energy is required to do so. The only place this energy can come from is the moving air. Now, maybe they are trading velocity for volume but the point is that however much energy was put into the air before it is blown out the aerofoil is exactly how much total energy the fan can produce.


yes sir, unless... they have developed one of those free energy developing devices :) there could be a market there!

refined induction is what they are talking about, much like a Carburetors fuel jets (plavts soda syphon), replace the fuel with air.

"The breakthrough came when they noticed that accelerating air over a ramp amplified it by 10 – 20 times, drawing in surrounding air through processes known as inducement and entrainment. Hundreds of iterative tests revealed the ideal ramp angle, aperture width and loop amplifier dimensions."

this sentence is quite amusing i thought;

"One engineer had the original idea. But it took every discipline from Dyson’s 350-strong team of engineers and scientists to develop Air Multiplier™ technology"

i'm guessing the tech might be a wee bit more complex than a cars a/c ducting or that "350-strong team of engineers" must be real silly, how many disciplines are there? :wink:

the study of fluid flow obviously isn't a new concept but the tech (the practical application of science to commerce or industry) certainly is wrt to this fan. lost in translation.
https://mechanical.co.nz - Development of a Secure Threaded Websocket Server in C.

User avatar
durain
Director
Director
Posts: 3666
Joined: Thu, 23 Aug 2007
Location: Location: Location: Location:

Postby durain » Mon, 19 Oct 2009 6:40 am

when the dyson cyclone vacuum cleaner came out, i thought it was revolutionary but it was just too expensive for me. so i stick with my bog standard bag vacuum cleaner.

then my brother gave me his dyson. in comparison, it wasnt something out of this world in terms of a good suck. my brother got a miele (bag type) instead and he said it was better than the dyson!

but if you look at the vacuum cleaner market, they are all similar to the dyson cyclone concept. so one day, i am sure we will see "balde free" fan soon flooding the market.

still... i still got a soft spot for the henry vacuum cleaner. (www.henryvacs.co.uk) :D :)

User avatar
sundaymorningstaple
Moderator
Moderator
Posts: 34674
Joined: Thu, 11 Nov 2004
Location: Still Fishing!
Contact:

Postby sundaymorningstaple » Mon, 19 Oct 2009 6:45 am

Thanks mrlily, for repeating their ad vertim. I think we've all read it by now and we've all, 'cept for you, anyway, realized that it's old technology that's been refined and presented in a new way. Therefore, a novelty. Albeit, it might have taken 350 engineers to figure it out. Might also say something about the level of today's or Dyson's engineers. :P

Credit where credits due though. It is a novel concept, but it's NOT what they claim in as much as the air is driven "just like a turbine" (based on impellers which are blades) which initially chop the air but then constrict it's flow before allowing it to pass through a smaller orifice thereby negating the buffeting effect.

mrlily
Regular
Regular
Posts: 98
Joined: Mon, 29 Jun 2009
Contact:

Postby mrlily » Mon, 19 Oct 2009 12:57 pm

last word?

the idea of sending air through the internals of an aerofoil shaped hoop thus inducing a larger volume of air is super smart.

how they send the air to the aerofoil... is irrelevant. :P
https://mechanical.co.nz - Development of a Secure Threaded Websocket Server in C.

User avatar
sundaymorningstaple
Moderator
Moderator
Posts: 34674
Joined: Thu, 11 Nov 2004
Location: Still Fishing!
Contact:

Postby sundaymorningstaple » Mon, 19 Oct 2009 1:35 pm

I think we're having you on a bit cause you bite so easily! :lol:

Just taking the p*ss that's all.

But the concept is very old anyway. Isn't that the same principle that used in the concept of the bog standard flush toilet? Even forms a hoop around the bowl. Just uses water instead of air. It also collect all the other water already in the bowl and out both go, volume increased as well. :P

If the method of sending the air is irrelevant they why did they go to such great pains to not only explain the chopped air effect but draw pretty pictures of it as well? :-k

Bet we all know who's gonna buy one! :lol:

mrlily
Regular
Regular
Posts: 98
Joined: Mon, 29 Jun 2009
Contact:

Postby mrlily » Mon, 19 Oct 2009 1:57 pm

snap, snap snap gater boy, hook line and.... :P
https://mechanical.co.nz - Development of a Secure Threaded Websocket Server in C.

User avatar
durain
Director
Director
Posts: 3666
Joined: Thu, 23 Aug 2007
Location: Location: Location: Location:

Postby durain » Mon, 19 Oct 2009 4:57 pm

if it is made in singapore, i will buy it. unfortunately, it is made in malaysia.

User avatar
Plavt
Director
Director
Posts: 4290
Joined: Wed, 18 May 2005
Location: United Kingdom

Postby Plavt » Mon, 19 Oct 2009 6:09 pm

durain wrote:if it is made in singapore, i will buy it. unfortunately, it is made in malaysia.




[-X

User avatar
ksl
Governor
Governor
Posts: 6005
Joined: Mon, 19 Jul 2004
Location: Singapore
Contact:

Postby ksl » Wed, 21 Oct 2009 1:39 pm

mrlily wrote:last word?

the idea of sending air through the internals of an aerofoil shaped hoop thus inducing a larger volume of air is super smart.

how they send the air to the aerofoil... is irrelevant. :P


No different to the vacuum suck and blow concept, that many vacuums' have! The only thing with dyson is their design concept, which you pay for. I prefer the industrial VAX for simple effective air flow which is all relevant

User avatar
QRM
Manager
Manager
Posts: 1831
Joined: Mon, 17 Oct 2005
Location: Nassim hill

Postby QRM » Thu, 22 Oct 2009 9:43 am

While on the subject of vacuums, I just went to harvey normans and bought a electrolux "Ultra silencer" its so quiet didn't even know our helper is vacuuming.

Heres the thing, does Philips pay a bigger commission? The sales folks were really pushing Philips this and Philips that, saying the electrolux is so quiet the motors burns out quickly because of all the filters, :shock: I should not vacuum for more than 15mins with out turning it off!! Made me wonder if I have Mug tattooed across my forehead? What firm would make a cleaner that works for 15 mins before over heating.

User avatar
Strong Eagle
Moderator
Moderator
Posts: 10734
Joined: Sat, 10 Jul 2004
Location: Off The Red Dot
Contact:

Postby Strong Eagle » Thu, 22 Oct 2009 10:21 am

QRM wrote:Made me wonder if I have Mug tattooed across my forehead? What firm would make a cleaner that works for 15 mins before over heating.


No... but if you really look like your Avatar, it might be the equivalent.

mrlily
Regular
Regular
Posts: 98
Joined: Mon, 29 Jun 2009
Contact:

Postby mrlily » Mon, 02 Aug 2010 7:24 pm

was walking through IMM a day or 2 back, turned around and my daugher was about to lick (don't ask why) one of those dyson bladeless fans...

here is my concise product review;

1 - look great!
2 - noisy
3 - noisy
4 - did i mention noisy?
5 - i could blow harder with a collapsed lung
6 - expensive sial!!!

conclusion:

Plavt wrote:Since Mr Dyson is very good at marketing his products and stringing the public along
https://mechanical.co.nz - Development of a Secure Threaded Websocket Server in C.

User avatar
durain
Director
Director
Posts: 3666
Joined: Thu, 23 Aug 2007
Location: Location: Location: Location:

Postby durain » Mon, 02 Aug 2010 8:03 pm

had a play with one a while ago too. at full speed does sound a bit noisy and at low speed, you need to put your face next to it to get any air!

still, i will wait for dison brand (and not bladeless fan but fan without blade) from china. :)

User avatar
nakatago
Moderator
Moderator
Posts: 8333
Joined: Tue, 01 Sep 2009
Location: Sister Margaret’s School for Wayward Children
Contact:

Postby nakatago » Mon, 02 Aug 2010 9:02 pm

if you're gonna play with it, might as well do this: http://www.youtube.com/watch?v=4WNcjkZ6d0w

:wink:


  • Similar Topics
    Replies
    Views
    Last post

Return to “Computer, Internet, Phone & Electronics”

Who is online

Users browsing this forum: No registered users and 2 guests