Navitron Renewable Energy and Sustainability Forum

WIND TURBINES => Wind Turbines and associated systems => Topic started by: camillitech on November 06, 2013, 08:51:19 PM



Title: It died :-(
Post by: camillitech on November 06, 2013, 08:51:19 PM
The poor Yangzhou Shenzhou died, or to be more precise I killed it  :cross It was my own fault, my 'wee baby' was not designed for Highland gales yet I left her unattended throughout several days of windy weather. Nothing too severe as the ferries ran throughout but it was more than she could take and she's now toast  :'(

(http://lifeattheendoftheroad.files.wordpress.com/2013/11/018_thumb2.jpg?w=233&h=176)

I don't blame the wee turnip, I know I rant about how carp they are but I knew that. The 'wee baby' belted out the amps in the lightest of winds and it was obvious from the start that anything with blades so large was going to self destruct in a gale. Biff told me too chop 100mm off the blades and I was too slow in doing so.

http://lifeattheendoftheroad.wordpress.com/2013/11/06/its-my-own-fault/

So all I need now is a new stator and to chop the blades and balance them  :hysteria

I am not giving up her yet, she'd only been up for two weeks but we'd grown quite fond of her.

Cheers, Paul


Title: Re: It died :-(
Post by: ecogeorge on November 06, 2013, 08:52:55 PM
What killed her ? over speed or too much load?


Title: Re: It died :-(
Post by: camillitech on November 06, 2013, 09:00:22 PM
I think it was a combination of shorting out the phases briefly, discovering it was a bad idea then just letting her rip throughout the gale. I swear I heard it go into 'meltdown' around 3:00am one wild night as the morning after it was turning very slowly and applying the 'brake' made no difference. One phase appeared to be out but as the wind picked up she started generating, she was even generating just before I took her down.

(http://lifeattheendoftheroad.files.wordpress.com/2013/10/018_thumb9.jpg?w=404&h=538)

I'm missing her already  :'(


Title: Re: It died :-(
Post by: Heinz on November 06, 2013, 09:07:15 PM
That looks a little cooked !
RIP Turnip  :'(

H


Title: Re: It died :-(
Post by: clivejo on November 06, 2013, 10:21:23 PM
** ruffles about in his magic sack and pulls out a new stator **

Ill swap you for a Proven coil :P Deal?


Title: Re: It died :-(
Post by: biff on November 06, 2013, 11:52:00 PM
Sorry to hear,Paul,
                  That your new turnip has passed away..The stator is certainly well cooked,I am sure that there is someone about with innards for it because most of these little Turbines cast the blades before they fried the stator.
      My first 2kw Y/S had the same blades but I went and specified the large lowwind speed blades, horror:The now normal hollow fibreglass ones and never got to fly the big R5Rs.(seagullswing) Thankfully,because I found out later that they created a bit of panic in a real storm,They stayed intact OK but sometimes during furling,they could flap about a bit and send everyone running for cover.
         I guess you will need the whole innards and shaft and all would be handier. You never know,there could be someone reading this at the moment with the complete package less the prop and tail,!They might be glad to see it get a good home on the Isles.
                                                                  Biff


Title: Re: It died :-(
Post by: agrarian on November 07, 2013, 11:24:55 AM
Paul,

 I'm sorry for your loss, having had similar experiences myself, I know how you feel. Keep the bits, buy another one, and learn from the experience.

Ag


Title: Re: It died :-(
Post by: clockmanFR on November 07, 2013, 12:20:18 PM
Go on Paul, make a little Hugh Piggott  :cross, you know it makes sence!  exhappy:

Now that you have experience in making stuff  :genuflect. Just copy his blade design, use 3 fence posts. Wind some coils, stick some magnets on a disc, use a car stub axle, get the self furling offset correct .

Go On, GO ON, Go On.! 


Title: Re: It died :-(
Post by: todthedog on November 07, 2013, 01:06:46 PM
Sorry to hear of your loss. :cross
She was a brave wee lass still producing till her last revolution  :'( :'(


Title: Re: It died :-(
Post by: biff on November 07, 2013, 03:09:21 PM
I would rather buy another 200watt,
                          They are a gallant little machine.Once one understands that the 7ft prop blades have to be cut,they will run for a long long time.
   Some years back,I managed to aquire one and after getting it going,I sold it to a fellow in the woods in Cavan,every week I would get a call from him to say that it was driving everything,(only 200watt ::))Then a big gust ripped the pole of the barn and fired it into a pond where it lay for a day.
    The pond was full of gunge and god knows what.He landed back with me with all the bits and pieces in the boot of his micra.There was not a lot of money involved.I took it and hosed it.cleaned it up,stuck another set of blades on it and put it running again.It was quite stiff to turn so I blasted it with WD40 and put a power drill on it and lo and behold it was giving out the charge great.I had no great hope for it but one day a friend turned up.He saw it sitting there in the corner and asked me all about it.So I told him the history and we had a bit of a laugh. He bought it and used the lump on a small hydro scheme he had.The phone would ring and the voice would say" Guess what,??" Guess what it putting out now.?he would demand,
  I would have no idea,,not a bulls notion,so I would say,,"perhaps 28volts,?  Near it,"?
 "Out by a mile" would come the reply,,"Out but a bally big mile" ( no he was not a member of the cast in Fr Ted)Then he would tell me that it was churning out 52 volts ,steady.
 A week later he rang to say that it was not doing as well as it was at the start,"I think I will put the hub and blades back on and send it up as a wind turbine" " you know it was origionally designed for wind power,you know,,you know."A week later he rang again,"Its not right you know,Its going round the best but its not right you know,you know."
  He took it down and opened it.He repaired the loose wire,Gave it a shot of grease and sent it back up the pole.A year later he landed back and told me that it was churning away the very best.Even after I told him to chop the blades down,it is still running with the 7ft prop. :hysteria. " Do You know where I would get another one"? says he
                                                                             Biff


Title: Re: It died :-(
Post by: kernelpower on November 08, 2013, 04:19:09 PM
Think I have done the same thing to my Experimental H P Type turbine , shorted it and it made a weird clanking noise for a while and I think the output is well down , I will have to take it down tomorrow and have a look :(, new stator I guess if its blown some coils?



Title: Re: It died :-(
Post by: camillitech on November 08, 2013, 05:19:13 PM
It might not be so serious KP, Merkland had a similar problem with his 200w some years ago and it was just a bad joint http://www.navitron.org.uk/forum/index.php?topic=15665.0

Good luck, Paul


Title: Re: It died :-(
Post by: kernelpower on November 08, 2013, 07:18:35 PM
Cool , hey Paul , there is a guy a few miles from me he has a 200 watter , long story but I got his number off his farm gate and I text him because his turbine only had 1 blade :) , anyways he had a bit of a rant about it and mentioned solar etc , anyway if you were interested I could get a price , he only has it on a 15 foot tower , if you might be interested ill try and have a word.

Cheers


Title: Re: It died :-(
Post by: camillitech on November 08, 2013, 07:27:58 PM
Cool , hey Paul , there is a guy a few miles from me he has a 200 watter , long story but I got his number off his farm gate and I text him because his turbine only had 1 blade :) , anyways he had a bit of a rant about it and mentioned solar etc , anyway if you were interested I could get a price , he only has it on a 15 foot tower , if you might be interested ill try and have a word.

Cheers

Sure I'd be interested KP, I kinda got very fond of the little dragonfly in the two weeks that it flew. Be nice to see it flying again, though perhaps with shorter blades and only on 'British Summer Time'  ;D

Cheers, Paul


Title: Re: It died :-(
Post by: kernelpower on November 08, 2013, 09:11:18 PM
I will try to get round his way , its a farm with big locked gates and a letterbox but ill just ask him how much he wants for it , can't hurt , he is in no way attached to it so  might be available for a song.


Title: Re: It died :-(
Post by: biff on November 08, 2013, 09:33:34 PM
KP,
  Wot are you going to sing,?If you turn up singing "Three blind mice",he might take the shotgun to you.
                                             Biff


Title: Re: It died :-(
Post by: clivejo on November 08, 2013, 10:10:59 PM
Mine has only two blades and a wonky shaft, but I think the coils are ok, what voltage is yours?


Title: Re: It died :-(
Post by: biff on November 08, 2013, 11:03:58 PM
 Hi Clive,
         Paul,s is 24volt.
                           Biff


Title: Re: It died :-(
Post by: kernelpower on November 08, 2013, 11:09:20 PM
I could prob have it away in the night if I really wanted to , Turbines deserved to be loved and nourished and appreciated!!!


Title: Re: It died :-(
Post by: biff on November 08, 2013, 11:26:58 PM
Absolutly KP,
         I could not agree more but shotguns are horrible things,they are noisey and angry and can leave you feeling weak and full of holes.
        Holes that sticking plasters cannot cure.When we were kids we used to knock about with this big shorthaired German pointer called Spot(he was the brains among us).If we got seen in someones orchard,Spot would take care of the dogs while we got out of it as quickly as possible.
     I distinctly remember us sitting on him by the river bank,to hold him down while we dug the pellets out of him with a penknife.He would grab us and hold the arm in his big mouth,we would wait till he stopped growling and then dig out the rest.Then we would drag him over to the river bank and push him in,jumping in after him.I have no idea how he knew we were nuts about him but he did.Then we covered up for him when he robbed a fowl and he did plenty of that.He was a ledgend in his life time but not to his owners who spent a fortune paying out for him.
   But even Spot got to know that ominous click and could leave a hole in the hedge making an exit to get away before the shotgun was even raised.
                                                                       Biff


Title: Re: It died :-(
Post by: camillitech on November 09, 2013, 07:05:49 AM
Mine has only two blades and a wonky shaft, but I think the coils are ok, what voltage is yours?


As Biff says CJ, but to be honest I'm not fussed what the voltage is, if it's 24 I can charge Harry's batteries and dump heat to the shed, if it's 12v I can power up the new 32' x 8' hen shed and if it's 48v I can put it into the house bank. How about we go 'Halfers' at KP's if it 'comes off', you take the blades and shaft and me the stator. Perhaps I could deliver it when I turn up on your, Billi and Biff's door one day  :hysteria

Cheers, Paul


Title: Re: It died :-(
Post by: biff on November 09, 2013, 09:11:18 AM
Clive,
       He is playing hard to get,!! Send him a pic of your turbine resting in a nice Christmas gift box under the chrissy tree with a blade on either side.
     No mere mortal could avoid being overcome with such a sight.
                                                              Biff


Title: Re: It died :-(
Post by: agrarian on November 09, 2013, 09:39:51 AM
Turbines deserved to be loved and nourished and appreciated!!!

Hear hear ....

Ag


Title: Re: It died :-(
Post by: kernelpower on November 10, 2013, 12:28:08 PM
Talking of turbines , mine is pretty knackered , I put the brake on in a gale and it has completely destroyed one of the magnet rotors , the metal disc is still there but totally empty :( I found a few sections of epoxy but no magnets yet :( pics to follow !!!


Title: Re: It died :-(
Post by: biff on November 10, 2013, 03:14:02 PM
Kp,
     You are coming out of this much better informed than when you went into it.Just imagine the value of this as a talking point at a little gathering or garden party and some one asked you do you know anything about renewable energy.
      You will be able to straighten up,have another sip of the gin/tonic.adjust the glass,s and look sadly profound,making  that very very telling remark,
      "You know,,its not quite all straight forward as it seems," Then continue in a similar vein,,"H,mmmmmmm I remember I once imported this wind turbine from Turkey".and "I wrongly believed that because they were exellent boat builders that they would automatically be exellent wind turbine builders".
    Dont say anything about the size and cost or make any remarks on the Turkish version of blackadder and baldric but you could let them know that if you had decided to sue and take the Turkish manufacturers to court,then the Turkish economy would have crashed and you did not want that on your conscience.
                Biff
 


Title: Re: It died :-(
Post by: stannn on November 10, 2013, 03:43:52 PM
When you see the numbers sold on teabay, there must be no end of folk with a dead turnip in the shed (but too ashamed to admit it).
Stan


Title: Re: It died :-(
Post by: agrarian on November 10, 2013, 04:04:27 PM
Biff,

You have a worryingly fertile imagination, you might consider becoming a writer, if you're not already. The title "Biff's Fables" springs to mind. Long may you continue to amuse.

Ag


Title: Re: It died :-(
Post by: kernelpower on November 10, 2013, 04:54:14 PM
Your'e right there Biff , words of wisdom Why do I always learn the hard way :( , Its still putting out some volts but the amps will be pretty cr*p,"Think the steel disk got impregnated"  with rust and it was only a matter of time , I fully expect too see a very rusty rotor disk when I take it down tomorrow.

That 1.3kw is getting some interest on ebay 200 the other day up to about 600 now ,  last time I spoke to Exmork it was about that price for a 2kw albeit a couple of years ago , I know they are different but guessing they are pretty similar.


Title: Re: It died :-(
Post by: stephendv on November 10, 2013, 07:08:31 PM
The 1kW 2.8m diameter huaya turbine (I think they're the manufacturer for exmork), goes for $502.  January 2013 prices.
Exmork do the same one for $550.

 


Title: Re: It died :-(
Post by: biff on November 10, 2013, 07:18:03 PM
AG,
    My old mam was worried too.She used to look at me exasperated and tell me I had excuses for excuses.
    KP,
      We all have to start somewhere.As of late I have been the victim of several chinese suppliers who got the money but never delivered the goods. I have learned that there is never a problem with the language untill I pay the money,Then that great understanding between different cultures seems to take a dive,especially after the feedback date expires.However I am learning and each new failed delivery is treated as a challenge. :genuflect
                                                          Biff
        


Title: Re: It died :-(
Post by: biff on November 10, 2013, 07:31:02 PM
   Xmork make a lot of different turbines,
                                    Every 6 months a new company springs up and sticks their label on them.There was a canadian company selling them about 3 years ago and calling them the french translation for "Bird".
      The lump is long and narrow,so the blades have extra leverage on the stator and you dont want that.However inside that turbine is surprisingly well made,I am not clued up on the controllers they are different to mine.If I ever had to fly one,I would downsize the blades and use a 1.5kw dump load.
   From what I have seen of the furling design,it is good,In fact it is a lot better than the Yang-Shen.
     But again,they are just too big for a boat.Try PM Rogerico and ask him for the addy of his supplier.His particular small 600watt(same as mine) had the best of both worlds.
                          Biff