Anyone familiar with this product? (Cyclone LW Wind Gen.)

[philip]

Has anyone tested these:http://www.windturbine.ca/cyclone_LW%20series.html

Devices seem to be imported Chinese units with integrated inverters and chargers.

The power curves look respectable and the 1kW has nearly 10' rotor dia. so the data looks reasonable. I am wondering if it is hype like those Air-X figures.

http://www.windturbine.ca/cyclone_c.html

My interest is increased as they also produce larger industrial versions so they seems to be a real mfgr of power products rather than toys.

http://www.windturbine.ca/600KW.html

[picmacmillan]

from the figures i have? the output isnt that good?..

here is a link to help convert various things like meters per second to miles per hour and visa versa...also blade diameter from meters to feet

http://www.reresource.org/Formulas/Windpower_Calculator/

my calculations show that you will only get 206.5 watts using a blade diameter of 13.12 ft. and a wind speed of 10 miles per hour?...thats not that good imho...pickster

[johnlm]

Im not quite sure what Pic is trying to say in his comments.

It appears to me that the advertised specs generally follow the general rule of thumb of P= 0.0012*V^3*D^2 with D in ft and V in MPH - which is the formula Pic used but Im not sure where he got the 13.2 Ft D and the 10 MPH.  They do have a 4 M (13.12 ft) prop on one of their units but its rated at 10 M/S (20.1 MPH) wind speed not 10 MPH.

I don't know anything about this company, but there is nothing in their information that looks in the way of suspect.  Would be nice to have more details on furling and a few other things.

John

[philip]

Thanks guys!

I browsed their site and the claim shows a 500W unit making 500W @ ~ 15mph. The Parts section of their web site shows a 500W's prop dia. to be 2.6m or 8.53'

I plugged the numbers in this page: http://www.reresource.org/Formulas/Windpower_Calculator/ and got 294W.

MFG claims 500W and that page shows ~300W with a disclaimer that more power is possible?

btw I called the company and left a VM. No reply yet.

I'll keep this thread updated.

[johnlm]

Philip

According to the info on this link

http://www.windturbine.ca/cyclone_c.html

The 500W unit has a 2.6M prop (8.4 Feet) and is rated at 8 M/S (which is 17.9 MPH not 15) which calculated out to 485W.  You guys are not getting all your conversions from metric to english correct.  I agree if you use ~15 mph it comes close 294W but converting 8 M/S gives you 17.91 MPH and if you use that number in your calculator link I think you will get about 485W.  I did the conversions on a calculator and on my own spreadsheet, Im not sure how you came up with 15 mph for 8 M/S

Sorry Im just a stickler for correct math.

John

[johnlm]

The problem is the wind calculator site only lets you pick wind speed in 5 mph increments and you picked 15mph.  The real rated windspeed is 17.9 mph which if you calculate it out using the real values gives close to 500W.  If you had picked 20 mph you would have gotten a result of around 677W and thought things looked great. Thats the problem with quick and dirty plug in routines which don't let you use the real numbers.  Convenient but in this case misleading.

John

[wdyasq]

17.9^3/15^3 = ~1.7; 1.7 * 294 = 499.8 - and that is fairly close to 500.

Just checking a third way and showing how one can take a 'quicky' calculator and refine a number.

Ron

[johnlm]

Ron,  

I called the method they used a quickie calculator because it did not allow the use of exact values for windspeed.  I was not disparaging all quickie calculators - only the ones that are so vague as to lead people to wrong conclusions as happened in this case.   Your approach works well.

John

[johnlm]

Sorry Ron, I now understand what you were doing - showing how to add refinement to the quickie calculator.  I was just trying to point out where sometimes a close approximation can lead to wrong conclusions - especially if the close approximation gets cubed.  

John

[cdog]

How does the furling system work? It appears to be offset with a fixed tail. It also appears to have a pivoting tail that helps it track better during "side gusts", does anyone have any info on these types of systems? Thanks in advance,

                                  Cdog.

[wdyasq]

Not a problem - as long as folks try I don't care.

Ron

[wind4Reg]

Hi Nova Scotia, I had a quick look at the site and I'd bet that these are made in China and imported. That looks to be the case from what I saw and judging from their other products, they are all available from Chinese trade websites. Some of the pictures that don't have the "courtesy of ... insert other company name here" caption have all oriental people in the pictures, guessing Chinese, so I would guess that these guys are importers and not manufacturers, and that means there may be different companies making the different sized wind turbines listed.

My best guess for what it's worth!

wind4Reg (New Brunswick)