quietrevolution wind turbine
more information on the helical wind turbine could be found on the quietrevolution website .
the british start - up quietrevolution developed a vertical axis wind turbine which is not only more aesthetic but is also better at gathering wind near and around buildings, which frequently vary in direction. the helical wind turbine is also quieter because the blade tip speed is lower .
small wind turbine designed and developed in the uk, manufactured in the uk .
the creative thinkers at quietrevolution have taken the wind turbine one step further with their quietrevolution display. through the use of leds and a unique firing sequence coordinated with the spinning of the blades, a full color video image can be displayed as if it is hanging in the middle of space .
vwt power ltd are manufacturers and suppliers of the qr6 quiet revolution vertical axis wind turbine. the qr6 wind turbine has been designed and developed in the uk. with it’s recognised, iconic design and strong aerodynamic performance it is the ideal small wind turbine .
the biggest single factor on energy production for any wind turbine is the available wind resource. quiet revolution has invested considerable time and resource over the last few years to increasing the understanding of the complex nature of on - site small scale wind resource. quietrevolution is now recognised as an industry leader in methodologies for on - site wind prediction, especially where the wind environment is highly complex .
vwt power limited trading as quietrevolution company number 9111957, registered office hopkin, the heath, great waldingfield sudbury suffolk co10 0sa .
i am a manufacture of wind turbine from china, yes, we have some successful case mounting a wind turbine on roof, it is perfect. pls add skype name
qiao
for further talking .
how to build a homemade stator for a p. m. a generator (wind turbine, hydroelectric )
he said using a wind turbine was a sound economic investment as long as it was in the right location .
how to build a homemade coil for a p. m. a generator. (wind turbine, hydroelectric )
the company showed bbc wales a letter written before the turbine was installed which made it clear it was sceptical the location would expose the turbine to enough wind to make it viable .
it' s very important with any wind turbine to ensure it' s in the most exposed location possible. they need unobstructed access to wind from all directions .
the quietrevolution (qr) was designed in response to increasing demand for wind turbines that work well in the urban environment, where wind speeds are lower and wind directions change frequently. the elegant helical (twisted) design of qr ensures a robust performance even in turbulent winds. it is also responsible for virtually eliminating all noise and vibration. at five metres high and three metres in diameter, it is compact and easy to integrate, and with just one moving part, maintenance can be limited to an annual inspection .
# quiet # quietrevolution # rebelbmh # revolution # turbine # verticle # wind
the genius of the quietrevolution’s qr5 is its vawt design, aka vertical axis wind turbine. the vawt enables the qr5 to gather power from the winds near around buildings that are constantly changing directions. it is also quieter than your typical wind turbine because the tip speed is slower, due to the triple - helix design, which in turn allows it to be situated closer to buildings and on towers .
[... ] another great wind turbine with beautiful design. great for urban areas. [... ]
according to quietrevolution the qr5 will generate around 10, 000 kwh per year in a site with an average wind of 5. 9m / s. this is equivalent to about five low - energy houses’ electricity demand, or the electrical needs of a twenty man office. unlike other turbines which are usually noisy the unique shape of the quietrevolution turbine allows it to operate in near silent which is ideal for operating close to residential areas. the distinctive helical shape of the turbine is also eye pleasing which is impotent since many communities rejected wind turbines because of their visual impact .
it is not uncommon for an organisation to use a small wind turbine as a means of generating some of its own electricity .
quiet revolution ltd has revolutionized the windmill with their new quietrevolution wind turbine, the qr5. not only is it one of the most visually appealing wind turbines available on the market, its small scale allows it to fit seamlessly into an urban environment, providing a renewable energy resource in places where space constraints previously made it impossible to hook up green power systems .
but before it was installed, the turbine makers warned welsh government contractors it would not be exposed to enough wind where it was positioned .
a wind turbine that cost the welsh government £48, 000 to buy has been generating an average of just £5 worth of electricity per month .
[... ] inhabitat » quiet revolution wind turbine. a very interesting windmill that can be placed in urban spaces. [... ]
the turbine was put its aberystwyth office, rated excellent for sustainability, in 2009 .
for example, the welsh government office in aberystwyth includes a biomass heating system, solar panels and a wind turbine designed to power a small number of workstations .
exactly how big is the quietrevolution turbine you ask? currently in production, the qr5 is 5m high and 3. 1m in diameter. two more sizes are currently being developed, the or2. 5 (2. 5m x 2. 5m) and the qr12 (12m x 6m). the qr5 is currently priced at £25, 000, which includes the purchase of the wind turbine, integrated control electronics, peak power tracking, auto shutdown and generator. depending on placement and wind speeds, the qr5 will pay for itself within 15 years or less .
the quietrevolution wind turbines will come in three sizes, the first of which is the qr5 which stands 5m high by 3. 1m in diameter. two other sizes are under development: the qr2. 5 (2. 5m x 2. 5m) and the qr12 (12m x 6m). the turbine will be mounted on a tall mast normally 3m, 6m, 9m or 15m tall. the cost of the turbine varies but is estimated at around 60, 000 dollars including installation .
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it' s located next to tall buildings so even if there' s a strong wind it will be displaced by the time it reaches the turbine, it will be very patchy and lacking in potential so the turbine won' t get the chance to spin properly .
[... ] the post that drew my attention (via engadget), was a beautiful design for a quiet wind turbine from a british company called quiet revolution. smaller and quieter than a normal wind turbine, the only drawback is the pricetag of £25, 000. it does does however pay for itself within 15 years. [... ]
at that rate it would take around 452 years to offset the cost of buying and installing the turbine .
hi, the wind turbine of eon model looks cool and futurestic one. being in india were enery through wind turbines are used for industrial purpose in a successful way and market for residential flats and homes are to be the next vast development in the country. i am very much interested on wind turbines workouts and energy output capasity details. awaiting for your valuable mail. regard, s. aravind
vertical - axis wind turbine this type of wind turbine is not widely used today. it is employed in areas where wind speeds and directions are gusty and variable. there are two major categories: 1. the darrieus turbine works on the lifting principle. it has two or three vertical blades which rotate into and out of the wind flow. this type of wind turbine provides ease of maintenance as the operating gears and controls are located close to the ground. however, it needs an external source to initiate the spin, e. g. an electric motor or some other type of vertical - axis rotor. 2. the savonius turbine works on the resistance principle. the rotor turns relatively slowly, but yields a high torque. this type can be used for pumping water, but is not effective in the generation of electricity, as rpms above 1000 are generally best for producing electricity and this type usually turns below 100 rpm i just thought that this would be some helpful info. personally i love the darrieus design but i am holding judgement on its feasibility in urban areas .
it is very interesting. i' m working in argentina in a wind generator prototype, too .
a turbine this size should produce around 9, 000 kwh per year which is a significant amount of power .
its just an update on an old dalvanius turbine, nothing new here just a little redigned, plus they have inherent problems .
the company which manufactured the turbine, quiet revolution, said mechanical problems were not the main reason for its performance but its location .
i would like to know how much power the unit will generate at what wind speed, and air density .
[... ] wind turbines” before, but the ‘wing’ design is nothing like the large, static “quiet revolution” for the home, nor the tiny, plastic motorwind micro turbine for use in dense urban areas. ‘wing’ is [... ]
the welsh government said there had been mechanical problems with the turbine and that throughout 2012 it was only operating at 26% of its capacity .
quiet revolution has developed an elegant and innovative vertical axis wind turbine. this cutting edge technology has been designed in response to the growing demand for renewable technologies and demonstrates that turbines can be elegant, quiet and a long - term, cost effective solution for generating energy .
a 5kw wind generator can produce 13087kwh electricity annually, suppose your country electricity is $ 0. 15 / kwh, so electricity amount is $ 1963. 05, our wind generator life is 20 years at least, so it can bring value $ 39270. how cost - efficient! !! meanwhile, it takes good advantage of wind energy - - - - - free resource, protect environment .
third round (if i get yellow - carded for not
playing nice
): i just remembered an article in my hometown paper from august, about a home - grown vwt (vertical wind turbines). it does not have the elegant shape or artsiness of the quietrevolution, but it appears a good deal more compact, and thereby less of a threat to the birds (even pidgeons and starlings !) and possibly more congenial to move - on modular housing (think katrina / rita rebuilds, remote locations, urban infill). urltoken
neither mitie nor the welsh government have been able to confirm yet whether quiet revolution' s advice was taken into account when the turbine was given the go - ahead .
the turbine' s output has been monitored officially since january last year and figures suggest it could take hundreds of years for it to offset the cost of its purchase and installation .
will it be able to slice and dice birds like the old fashion wind turbines? the photo with the turbine that has the
eon
logo around it in an orange colour looks almost as if it' s some sort of mesh cover that could prevent birds from flying straight into them. i wonder how feasible such a mesh is? it looks pretty cool .
you can also find lots of information regarding our vertical axis wind turbines on our website urltoken and you can read all the latest news and developments here on our blog .
the welsh government confirmed in a response to a freedom of information request that between january 2012 and july this year the turbine generated 585 kilowatt hours of energy (kwh) - an average of 33 kwh per month .
paul burrell from anemos, a company based in machynlleth, powys, which installs small and medium - sized wind turbines, said in the right location turbines like this could be very effective .
there is one finnish company producing
wind turbins
. their product have some similarities with this product. check out your self: urltoken here' s some quotes from their pages :
windside wind turbines will produce at least 50% more electricity in a year than traditional propeller models
their design ensures a minimum requirement for maintenance .
windside wind turbines are soundless. (0 db) they do not kill birds or people. for these reasons they are safe to use in population centres, public spaces, parks, wildlife parks and on buildigs .
your wind power device looks to be just what we would want, only a smaller version, and less costly. please consider making versions that could be used on farms and residences in rural areas .
any one has an idea how if this could be done on a large scale, say for a township... a hybrid of wind and solar... any sites for further info? regards mat india
as energy problems increase and the danger of global warming becomes more and more apparent, alternative energy resources gain momentum. wind, one of the most important alternative energy sources has been used on a small scale for decades. recently, companies from around the world have been working on creating large scale wind farms. one example is the plan to build three hundred forty - one gigantic turbines near the thames estuary off the south - east coast of england, costing almost $ 3 billion, and producing up to one gigawatt (gw) of power (approximately 25% of london’s domestic use) .
the vibration and hence noise level is low because both ends of the helical blades are attached to rings. for the normal horizontle axis turbines, noise is a real problem and makes them unsuitable for urban areas. there is a design where the horizontle axis turbine blades have a ring that the blade ends attach to and this is supposed to reduce the noise. the chinese were the first to use vertical windmills many centuries ago. they did it with an ingenious idea - imagine a two panel turbine for ease of illustration. each panel is a bamboo mat (say a rectangle 4' x 6') and there is a slightly smaller frame behind one mat (say 3. 5' x 5. 5') and another similar frame in front of the other mat. the frames are rigidly attached to the vertical shaft and the mats are free to flap with three sides free and the side along the vertical shaft acting as a hingle for the flapping. for a given wind direction the mat in front of the frame presses against the frame turning the shaft while the other mat flaps back from its frame to let air pass through. the wind force differential is what turns the windmill. i don' t know if i did a good job of explaining but it is a piece of trivia of ancient science for those who might be interested .
hello, i am a retired aero engineer with a great interest in wind power and the possibilities of vertical axis turbines. however, my experience has been that they cant really compete with the present propeller turbines for the large mega watt energy grids, for two basic reasons. the swept area of vawts is much less than the prop jobs, plus when mounted at ground level, the important matter of wind speed is much lower, and fairly prone to turbulence. i have tried to design an efficient vawt but have failed to find an aerodynamic breakthrough that works. i cant believe the giant maglev turbine supposedly being built in china is for real! even if it only claimed to be as efficient as one hawt, it would be hard to believe. maybe they have discovered a major breakthrough in physics and aerodynamics that i \ \ \' m not aware of. mag lev is nice as a bearing, but it doesnt repel the laws of aerodynamics. please advise me if this monster is really being built! thanks, glen bolton
per david barnes post - could you expand on
they have inherent problems
? what are the problems, has this company addressed those problems in any sugnificant way, and what negative effects would we see over time from these problems? i' d love to really discuss this - i don' t have much knowledge of turbine technologies but i do have a strong curiosity and would appreciate more information .
as a creative artist i can see this means of power on mountain tops as works of art. by all means, why doesn' t the usa make the right steps now and apply this art to the areas with the most wind. we need to get our act into gear for our children' s future. thank you for your time. ken stockton
hello above friend, i think for industrial purpose, large power output, ours is smaller, our hummer wind generator from 350w to 10kw can load colour tv, refrigerator, water pumping, washing machine, street lamp, lake shipment, beacon, lighthouse. consumer can be resident, culturist, sea user, ship user and etc. you can load urltoken for a check, if you are interested, please send emai to [ email protected ]
the quiet revolution (qr) was designed in response to increasing demand for wind turbines that work well in environments close to people and buildings. the elegant helical (twisted) design of qr ensures a robust performance even in turbulent winds. it is also responsible for virtually eliminating noise and vibration. at five metres high and three metres in diameter, it is compact and easy to integrate, and with just one moving part, maintenance can be limited to an annual inspection .
hey, i live in a tower (14th floor quarter) in front of majestic powai lake at mumbai, india. there are plenty of wind all around the roof. the roof is clean and there is no cell tower there. can we install some vawt on this roof top? . to get some electricity for the lift lights? my company will sponsor the project. please let me know if you can provide me the design. reagrds. s. bera ntpc - mumbai
we are a team of architects and engineers putting together ideas for a riverfront redevelopment. as part of our marketing package, we are including sketches of people gathering places. one of our ideas to create a sort of interpretive center of alternative energy. as such, we would like to show wind turbines, solar collectors, etc. we like the aesthetic of your helix shaped product and would like to include a picture or two of it in our proposal. is it ok to copy and paste the images above into our promotional literature? hope to hear from you soon... gary
round 2 - - re: d. b.' s and j. s. re
inherent problems
and
little redesigned
from a dalvanius turbine (akin to one of those spinning
park here
signs hazardous to unwary pedestrians). on face value alone, i' d say the difference in design is like the difference between a wwi biplane and a modern high - performance sailplane! the aerodynamic efficiency (and therefore, energy efficiency) is tremendously improved. another plus: if the aerodynamic efficiency is improved, the noise reduction is probably significant as well. i don' t have the engineering chops to lay out the formulas and data curves, but i am enough of a designer to have my eyebrows raised and my interest piqued by this concept ...
sorry i made a boo boo. it' s the darrieus (vertical axis) that operates in a wider wind speed range and is self starting. i do remember however having seen some that tore themselves appart, those are the () shaped variety and i would suppose that when being overdriven it' s not just the g - forces from spinning that damage it but that a large unsupported span of a certain airfoil is being driven into reynolds numbers it can' t handle and will likely oscillate violently. in real english the wing is moving far too fast through the air and the air around it is changing so much that it starts fluttering incontrollably .
if i remember correctly the main problems with most turbines on a vertical axis are the narrow operating range of windspeeds and the difficult start up, some even have to be spun to get going. i' m going back to a highschool geography project for this so feel free to correct me. i can imagine this one would go a ways to ease of start up since there are acting surfaces 360 degrees around the axis. it should also put a dent into the operating speed problem because the foils are swept a fair it and that should both shed excess wind speed and stiffen the whole deal up a bit. and finally the combination of sweep and aggressive aspect ratio of the foils / should minimise the amount of disturbed air and thus drag and therefore noise. not being a certified aerodynamicist you should find out for yourself, but this is what i' ve learned and the subsequent intuition tells me should be the case .
to alex: the
eon
concept is a virtual sign, an optical illusion created by timed led lights on the blades, much like the art - pieces created by strip - lasers that depend on the brain' s ability to freeze - frame motion in order to make sense of what it sees. as for the slice and dice issue, the lighting combiined with the verticality of the system moving within a compact cylindrical space (as contrasted with a large vertical disk with swinging arms) may be more compatible with bird perceptions of obstacles (more tree - like ?) and be less hazardous. that, combined with the ability to put them in close proximity to buildings, may also reduce the need to plant the wind farms out into more open migratory flyways. the hazard shifts to pidgeons and starlings, more akin to rats and cockroaches in urban areas. however, i am not advocating planting these in piazza san marco or trafalgar! (maybe on the national mall in washington, up by the commerce department... )
taking 16p as an estimate for the current price of electricity per kwh in the consumer market, it works out at a value of £5. 28 per month .
some improvements have been made and as of january this year it has been operating at 68% .
but if it continues to operate at 68% capacity then it will generate 55. 25 kwh per month - electricity with a value of £8. 84 .
that letter was sent to a company called mitie which was acting as the contractor to the welsh government .
i think the problem is quite simple - it' s been put in the wrong place ,
he said .
unfortunately the welsh government' s one is located in a valley, two miles from the sea and has quite a short tower .
the payback period (on initial capital investment) can be anywhere between four and seven years ,
he added .
there are many examples of turbines across wales on track to do this .
a welsh government spokesperson said :
we have an ambitious carbon management strategy for the whole of our estate which includes a wide range of activities aimed at reducing co2 emissions .
as a result we have seen a 17% reduction in co2 emissions over the past two years and are well on course to meet the overarching target of a 30% reduction by 2020 .
the foreign secretary quits, telling theresa may
needless self - doubt
is leading to
semi - brexit
.
the blades, spokes and torque tube are made of advanced composite materials including carbon fibre for weight, reduction, stiffness and longevity .
the brakes modified with enhanced anti – corrosive properties, increased power despite decreased energy consumption .
vwt power ltd 11 edison road st. ives cambridgeshire pe27 3lf united kingdom tel no. + 44 (0) 1480 277360 mobile no. + 44 (0) 7407 714596 email info @ urltoken
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there are already two of these in action outside sainsbury supermaket in greenwich (uk), no danger to birds what so - ever, if you saw them you would realise that. no idea how much power they make though, but they look far prettier than the ones they replaced (conventional 3 blade types )
please send further details regarding your technology, pricing and distribution plans for australia .
am i mistaken or does this windmill look a lot like the turby? that has been tested since 2002. do a google on
turby
and you' ll see what i mean .
i am exploring the idea of 1 or more turbines at a location in pennsylvania, usa. varying winds, and directions, with conditions greater than the surrounding area because of geologic features. ideas welcomed, thank you, mike ross
this is a best thing to produce a power. i want to know about how much power will genarate & how many cost for this model ?
great idea, we have proposed the use of these on our mumbai contract as the developer is interested in sustainability which we a very pleased about. please can we have some specs on how much current these units produce. our contract is a town centre in dadar central mumbai that was largely industrial area. thank you, philip gee
this is truly inspiring, innovative urltoken sets example to believe that creativity has no dead end .
please send further details regarding your technology, pricing and distribution plans for southeast asia. regards / roger, in bangkok
this looks like an excellant addition for a cell phone tower. if placed above the antenna array, it wouldn' t have any effect on the radio waves or on worker safety. cool stuff, thanks !
noise – qr industry leading noise levels. the aerodynamic helical blade design results in very smooth, quiet operation .
vibration – we have researched this issue in depth and deploy systems to reduce vibrations to levels that are not measurable within the building .
safety – we deploy a dual braking system and various sensors to detect faults / out of balance / impact / vibration etc .
qr5 – at five metres high and three metres in diameter, it is compact and easy to integrate, and with just one moving part, maintenance can be limited to an annual inspection .
the blades, spars and torque tube are made of robust carbon fibre, and all moving parts are sealed to minimise maintenance .
the direct drive in - line generator has auto - shutdown and peak power tracking and is incorporated into the mast .
for more information about the feed - in tariff scheme or how much you could save and earn from installing an electricity generating system please contact us .
you are also paid for the amount of electricity you feed back into the national grid .
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iddo has a b. a. in philosophy and cognitive science and an m. a. in philosophy of science from the hebrew university of jerusalem. he is currently writing his ph. d. thesis on the relationship between the scientific community and industry. iddo was awarded the 2006 bar hillel philosophy of science prize for his work on the relationship between science and technology. he is a member of the board of the lifeboat foundation and was the editor of several high - profile science and technology websites since 1999 .
the problem is quite simple - it' s been put in the wrong place .
£24bn - a - year tax burden on pensioners... and it may rise
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the quietrevolution is a discontinued brand of ( vawt ) vertical axis helical turbine . the helical design is most similar to the gorlov helical turbine . both are an evolution of the darrieus wind turbine . it has won several awards including the " sustainable innovation award " in 2006 . the turbine consists of three vertical airfoil blades , each having a helical twist of 120 degrees . this feature spreads the torque evenly over the entire revolution , thus preventing the destructive pulsations of the straight-bladed giromill ( darrieus turbine ) . the wind pushes each blade around on both the windward and leeward sides of the turbine . the qr5 turbine , rated for 6 kw , measures 3.0 m in diameter by 5m high . poor performance of a qr5 installed at welsh government offices in aberystwyth has been blamed on poor siting . the turbine 's overall cost was given as £ 48,000 and in 2012 it generated an average of 33 kwh per month , a value of £ 5.28 per month . 
the quietrevolution is a discontinued brand of (vawt) vertical axis helical turbine. the helical design is most similar to the gorlov helical turbine. both are an evolution of the darrieus wind turbine. it has won several awards including the " sustainable innovation award " in 2006. the turbine consists of three vertical airfoil blades, each having a helical twist of 120 degrees. this feature spreads the torque evenly over the entire revolution, thus preventing the destructive pulsations of the straight-bladed giromill (darrieus turbine). the wind pushes each blade around on both the windward and leeward sides of the turbine. the qr5 turbine, rated for 6 kw, measures 3.0 m in diameter by 5m high. poor performance of a qr5 installed at welsh government offices in aberystwyth has been blamed on poor siting. the turbine's overall cost was given as £ 48,000 and in 2012 it generated an average of 33 kwh per month, a value of £ 5.28 per month.
the quietrevolution is a discontinued brand of (vawt) vertical axis helical turbine. the helical design is most similar to the gorlov helical turbine. both are an evolution of the darrieus wind turbine. it has won several awards including the " sustainable innovation award " in 2006. the turbine consists of three vertical airfoil blades, each having a helical twist of 120 degrees. this feature spreads the torque evenly over the entire revolution, thus preventing the destructive pulsations of the straight-bladed giromill (darrieus turbine). the wind pushes each blade around on both the windward and leeward sides of the turbine. the qr5 turbine, rated for 6 kw, measures 3.0 m in diameter by 5m high. poor performance of a qr5 installed at welsh government offices in aberystwyth has been blamed on poor siting. the turbine's overall cost was given as £ 48,000 and in 2012 it generated an average of 33 kwh per month, a value of £ 5.28 per month.