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renewablejohn
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« on: January 23, 2012, 12:39:09 PM » |
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Does anyone know what size motor is in dyson bladeless fans. http://www.dyson.co.uk/fans/fans.aspJust thinking a dyson fan on front of a venturi wind turbine would get over the low wind speed performance maybe powered by pv cells on the ring http://www.venturiwind.com/ |
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« Last Edit: January 23, 2012, 12:43:52 PM by renewablejohn »
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clivejo
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« Reply #1 on: January 23, 2012, 12:54:12 PM » |
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Interesting, how do they work? |
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clivejo
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« Reply #3 on: January 23, 2012, 01:18:22 PM » |
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Now that's clever !!
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Baz
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« Reply #4 on: January 23, 2012, 03:12:40 PM » |
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I wonder if there is high frequency noise from it that affects dogs.
If the vacuum numbers in my local recycling skip is anything to go by there will be a lot of them in there in a few months.
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dhaslam
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« Reply #5 on: January 23, 2012, 03:28:10 PM » |
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One way to avoid being a Dyson fan is to buy one of their vacuum cleaners. Ten minutes and it is completely clogged up. There are two filters that have to be blown out with a compressor to make it work again.
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renewablejohn
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« Reply #6 on: January 23, 2012, 04:14:10 PM » |
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Not a great Dyson fan myself. Used to be a Henry fan now progressed to George.
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SteveH
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« Reply #7 on: January 23, 2012, 04:23:25 PM » |
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Preveli, South Crete.
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noah
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« Reply #8 on: January 23, 2012, 04:27:06 PM » |
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Dyson has a great history of unnecessary/overcomplex `inventions`-
The ballbarrow overcomes the problem of not being able to turn a tight corner with the conventional old fashiond wheelbarrow -something which gardeners have been complaining about for centuries.
The cyclonic type of dust extractor has been in use in the woodworking industry since late 1800`s - hardly an `invention`. (and as a few have pointed out, overcomplcated)
The Airblade hand dryer is fine as long as you only get wet up to the lower wrist: useless for drying elbows and faces (or warming yourself up after a motorbike ride in winter)
The Air multiplier fan seems to have few advantages over an old fashioned bladed fan. Even I, who bears the scars of a fan based incident, think that buying it for the safety aspect alone is not worthwhile.
Dyson is a clever guy but I think his talent lies far more in PR than in inventiveness.
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djh
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« Reply #9 on: January 23, 2012, 04:46:31 PM » |
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The Airblade hand dryer is fine I think the airblade is worse than what it replaces. A major point of hot air dryers is to avoid having to touch anything, to avoid cross-infection risks. With the airblade, its all too easy to get your hand blown/sucked onto the side of the unit. That risk just isn't there at all with a conventional unit. |
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Cheers, Dave
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SimonHobson
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« Reply #10 on: January 23, 2012, 05:14:12 PM » |
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I think the airblade is worse than what it replaces. A major point of hot air dryers is to avoid having to touch anything, to avoid cross-infection risks. With the airblade, its all too easy to get your hand blown/sucked onto the side of the unit. Especially to be avoided when you hear what some blokes supposedly do with them  I was tempted to use the  emoticon above, but that's not what I had in mind. |
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renewablejohn
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« Reply #11 on: January 23, 2012, 06:26:24 PM » |
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OK PV guys what area of pv cells would be required to run a 40w dc motor.
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noah
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« Reply #12 on: January 23, 2012, 06:42:48 PM » |
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djh,
Irony,irony.
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clivejo
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« Reply #13 on: January 23, 2012, 08:05:22 PM » |
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You could have one of these fans blowing against biffs 600w turbine. If the fan 'blows' 15 times more air that's 40w x 15 = 600w. Take 40w to power the fan and vola 560w of freeeeee power !! Genius!!
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