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Author Topic: Half built Hugh Piggot turbine.  (Read 72733 times)
offthegridandy
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« Reply #150 on: January 30, 2016, 05:51:26 PM »

Me I luv my lattice tower.  So strong it gives me confidence that the turnip will stay in the right place. At the top!!

I notice a dearth of piccys and I know Navitroids get pining for such things.  Here's my latest offerings, usual cr*p standard.  But see the quality is in the text, so far we've had a "dearth" and earlier an "ingress". I think I am going to risk the wrath  of the famed Lord of the Lard and desist from referring to the whirling blades of doom as the whirling blades of doom, I think perhaps wind slicers would be more accurate.


This first is actually one of our Shetlands all fettled up for a Saturday night on the tiles.


Some landscape.





Blades and tail components.

Another birthday achieved yesterday so now I suppose I'll have to approach the bottle of Malt that awaits attention. Goes of muttering, "there's always something".

Cheers.

Andy
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todthedog
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« Reply #151 on: January 30, 2016, 06:01:21 PM »

Pour a glass for me Andy!
Paul doesn't need one too windy and far too far north.
Biff is just too healthy.
Pics are just fine.


I like the peaty Islay malts but am prepared to compromise!
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Billy
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« Reply #152 on: January 30, 2016, 06:08:13 PM »

Urghhhh,

A clean Speyside brew for me.  Good job their's so many to try.

That first pic had me thinking that a blade had butchered a sheep. sh*tfan

Then I looked more closely.
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biff
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« Reply #153 on: January 31, 2016, 12:05:03 AM »

Andy, There is less red heading into Wales on Monday,
        Paul, there is a very big blow heading towards Raasay on Monday, It is showing the purple actually touching Raasay on a west wind.
  We are in for it as well and it has not changed course as yet . I have seen it like this before but changing course within the last 6 hours.
                                                                               Biff
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camillitech
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« Reply #154 on: January 31, 2016, 07:30:01 AM »

Andy, There is less red heading into Wales on Monday,
        Paul, there is a very big blow heading towards Raasay on Monday, It is showing the purple actually touching Raasay on a west wind.
  We are in for it as well and it has not changed course as yet . I have seen it like this before but changing course within the last 6 hours.
                                                                               Biff

Aye Biff,

we've been getting hammered of late, just taking pigs to Dingwall today as tomorrow looks a 'no no'. Nice work Andy  Cool
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offthegridandy
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« Reply #155 on: February 19, 2016, 06:40:50 PM »

Well, having survived the bottle of Malt, a huge family wedding (dance till dawn type) and then a week of a foul cold; probably collected at the dance, finally got on with some proper work.

I can see the next toilet season approaching over the hill so I must get on and finish the 3Mtr turbine.  I've got the new blades assembled on the hub and the new tail all done and painted.  The new stator's ready and awaiting fitting soooo!! Got to get the tower down and dismantle the old turbine. 

The forecast today was calm so I parked the blades of the turbine and set to work.  Got the truck parked in place and fitted the winch to the front bumper. We're talking truck made of metal not plastic bumpers I should add. Then I fitted the gin pole to the base of the tower and then the main lead guy was connected via the gin pole to the winch wire.

After lunch I slacked of the remaining guys in preparation for the lowering.  I hate the first couple of feet of movement as the full weight comes on the winch wire.  At which point the wind started up again. Having joined the WT club I didn't want to be expelled for foolishly dropping the kit.  So I reconnected all the guys and pondered.  We often get a bit of calm shortly before the days end, so figured I'd leave everything connected and be patient.

4.40PM the wind died off and the turnbuckles were quickly whipped apart , clickyty click on the winch and the whole shooting match was on the way down.  Once the tower was down close to the horizontal 2 previously prepared sections of scaff tower are in place to support the tower high enough for the blades to clear the ground.

All down safe and sound.  Tidied up the winching gear then just managed to get the tail and turbine and blades away and into the shed.

I have to modify the top of the main post where it joins to the lattice tower.  The new turbine will have a 70mm dia mast rather than the slightly flexible 50mm section at present. So I'll be cutting the top section and sleeving the 70mm over the top, with suitable flanges to brace it all up.  Some cutting and welding lined up then.

I'm missing my extra amps all ready so will try and push on.

Andy
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biff
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« Reply #156 on: February 19, 2016, 07:32:35 PM »

                     " I did not want to be expelled for foolishly dropping the kit"
        Don,t worry Andy, I know some one dear to my own heart and he dropped the lot sh*tfan  in rather exciting circumstances .
         It is a horrible feeling my friend..
       There is no excitement quite like it ,when the wind picks up the turbine and throws it straight back up again from near half way down,,woooooooo betide me,,
       I rattled that joy stick between my thumb and index finger,gritted my teeth and as the tower came down for the second time (or was it third time) I heard the most nasty rattle of a dying
       winch. I think I even stood on one foot and kind of twisted myself sideways ,, kind of trying to will the blasted thing to do as it was told and kinda made poo of the lot.
                                          Biff,
    My wife asked me, I quote,," What did you say when the tower bounced of the tressle for the third time and the tressle skidded away and the blades crumpled into the ground,"
     I looked her straight in the eye and said,,  "How jolly awful,, How Jolly awful"  " Oh Dear me". My wife has the most beautiful laugh, absolutely contagious and makes everything right.
                                     
   
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offthegridandy
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« Reply #157 on: February 19, 2016, 08:18:59 PM »

Yeah Biff I can just see you standing still and say "how jolly awful" . I find a few bars of the Archers theme song helps F*** De F***** De F****D F****, F De F De F and so on. And sorry to hear about your furry friend by the way.

Generally me and Mr Gravity we get on fine,  I respect his need to drop stuff and try to work with him whenever possible and avoid being underneath!!

I had the Senior Partner out with me this afternoon, "just hold this rope and don't pull it", I said  It had no bearing on the tower lowering but made me feel better.  If the thing did go wrong we could SHARE the blame!!

Andy
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offthegridandy
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« Reply #158 on: February 19, 2016, 08:34:28 PM »


New blades strapped to shed wall.


Rope for helper to hold.


Turbine and tail awaiting removal.


Down and safe.

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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
2.5 Kw wind turbine H Piggot design 4.5 Mtr Dia
12 Mtr free standing Tower.
u/floor heating from oil boiler cross linked to 12 Kw
todthedog
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« Reply #159 on: February 20, 2016, 10:01:49 AM »

Brings to mind lord Uxbridge at Waterloo.
When his leg was shattered by a cannonball.
He remarked to Wellington.
By God Sir, I've lost my leg
To which Wellington replied
By God Sir, so you have.

Glad to see the tradition of the stiff upper lip is alive and well at Biff towers!

Andy, cracking mate! extrahappy
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Billy
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« Reply #160 on: February 20, 2016, 10:39:40 AM »

Oooooh, that tower has sent me all goose bumpy. Sad am I not?   Grin
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offthegridandy
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« Reply #161 on: February 20, 2016, 08:35:49 PM »

Hey Billy, I can send you more pics if you need them.  Lattice towers porn OK.

Andy
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
2.5 Kw wind turbine H Piggot design 4.5 Mtr Dia
12 Mtr free standing Tower.
u/floor heating from oil boiler cross linked to 12 Kw
offthegridandy
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« Reply #162 on: February 21, 2016, 06:45:24 PM »

With the wind blowing a nice 15plus MPH and no turbine up, it's been down to the  shed time.

First job was to get the old blades and hub off the main turbine frame.  Was pleased to find everything came apart with out a fight and no rusty nuts. I was a long time levering the hub up off the 4 studs as the hub was a very snug fit.  All my previous paint and fibre glass finish on the wooden blades has no sign of splitting or cracking and no warping on the blades, result.


I then separated the magnet rotors using the jacking screws, again all came apart as it should and no fingers were trapped in the process. I marked the rotors before separating to ensure they go back together with the magnets correctly aligned.



The new tail is significantly larger and heavier than the old one, for the 8ft blades.  The hinge piece is a  larger diameter so I had to make and fit a sleeve over the old tail swivel pin to accommodate the difference and then I added some extra braces to support the extra weight.


With the hinge made up I could get on and fit the tail and measure and fit some 6mm steel for end stops to limit the travel of the tail when furling.  I also fitted another piece of 6mm bar to lock the tail on its hinge pin when the tail is fully furled. Apparently it's been known for the complete tail to lift off in extreme conditions. Clockman had this problem on one of his early models and I'll learn from his lesson, "ta very much"


I've next got a session on sanding and painting, then I can drill mounting holes and fit the new 10 ft blades.  I hopes for a calm day soon for balancing the blades, outside!!

Cheers.

Andy




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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
2.5 Kw wind turbine H Piggot design 4.5 Mtr Dia
12 Mtr free standing Tower.
u/floor heating from oil boiler cross linked to 12 Kw
biff
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« Reply #163 on: February 21, 2016, 08:02:49 PM »

You are enjoying that Andy,!
                            The new tail fin look very big besides the old one, Is there some special reason as to why it is so big,?
       I have been thinking about adding a bigger tail fin to out own house turbine. I wonder how the Chinese worked out the size. It took me years to figure out why, then one day I realised that the fins that came in the box were the biggest ones they could get into it, Grin, They are tiny compared with yours.
                                                      Biff
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offthegridandy
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« Reply #164 on: February 21, 2016, 08:59:44 PM »

Hi Biff,

I'm just following the instructions in Hughes latest book.  The original tail for the 8ft blades looks small partly because I assembled it incorrectly.  I failed to fit the plywood vane at the far end of the boom. If I'd fitted it correctly the original tail would have been about 1/2 mtr longer.

I think Hughes designs are some what organic and have been developed over time. I'm now using the 2014 receipe book.  This new 3 Mtr model design has been considerably beefed up from the  instructions in the earlier 2005 edition.  I guess Hugh has actually made so many turbines and also gets feed back from many sources across the world and develops his design accordingly.  Hughes designs always err on strength and reliability over ultimate performance. The 3 mtr design I am now making has a lower start up speed (165 rpm) as well as some more amps.  I'm more interested in the lower speed in the long term as there are more days with steady wind than gales.

Cheers.
Andy 
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
2.5 Kw wind turbine H Piggot design 4.5 Mtr Dia
12 Mtr free standing Tower.
u/floor heating from oil boiler cross linked to 12 Kw
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