Wind Turbine pics, In case you were curious.

solorone
solorone Solar Expert Posts: 257 ✭✭✭
in Wind Power Generation #1
Thought folks might want a closer look at wind turbine blades have been digging in my achieves and these are from 1 year ago, never post processed them due to their quality, just snapshots at best.

Off loading in Halifax NS

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Shape of the blades

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Blade headed North of Mt. Washington NH.

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pbase.com/solorguy
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  • BB.
    BB. Super Moderators, Administrators Posts: 33,654 admin
    #2
    Re: Wind Turbine pics, In case you were curious.

    Neat pictures... Saw a truck carrying a big white (really big) strangely shaped box/container out in the SoCal desert area. Took me awhile to figure out it was probably was a large wind turbine nacelle. Those guys are huge.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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  • TheBackRoads
    TheBackRoads Solar Expert Posts: 274 ✭✭
    #3
    Re: Wind Turbine pics, In case you were curious.

    awesomeeeeee.. Any of them installed?
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  • niel
    niel Solar Expert Posts: 10,300 ✭✭✭✭
    #4
    Re: Wind Turbine pics, In case you were curious.

    mt washington is somewhat brutal in the winter. hope just north of there isn't as brutal or a failure won't get fixed until spring.
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #5
    Re: Wind Turbine pics, In case you were curious.

    For some reason I have not been getting email notifications. I have this posted on 3 camera forums also, and learned a good bit more. These are the smaller units. Seems they are going to bigger turbines, as one big one is cheaper to erect and operate than 3 smaller ones. This was posted on another thread,

    How about a turbine that is 505 feet diameter, blades of 246' and at 10 RPM a tip speed of 180 MPH. The video is German but that does not matter, these are huge.

    Siemens just produced the worlds biggest rotor blade with a total length of 75 meters and it weighs 25tons, the total diameter of the turbine after assembly will be 154meters. The truck length for that transport was 85m and had a width of 5m. The special thing about these is that they are molded in one single piece instead of several pieces, so they can save up to 20% of weight.

    You can see a short video about the move on this German website (couldn't find an English version): http://www.bild.de/geld/wirtschaft/s...3176.bild.html
    The real interesting part is at 00:14, the truck had to go through several roundabouts and in this video you can see the truck traveling one, at one point the tractor can't see the trailer at the end!
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  • inetdog
    inetdog Solar Expert Posts: 3,123 ✭✭✭✭
    #6
    Re: Wind Turbine pics, In case you were curious.
    solorone wrote: »
    For some reason I have not been getting email notifications. I have this posted on 3 camera forums also, and learned a good bit more. These are the smaller units. Seems they are going to bigger turbines, as one big one is cheaper to erect and operate than 3 smaller ones. This was posted on another thread,

    How about a turbine that is 505 feet diameter, blades of 246' and at 10 RPM a tip speed of 180 MPH. The video is German but that does not matter, these are huge.

    Siemens just produced the worlds biggest rotor blade with a total length of 75 meters and it weighs 25tons, the total diameter of the turbine after assembly will be 154meters. The truck length for that transport was 85m and had a width of 5m. The special thing about these is that they are molded in one single piece instead of several pieces, so they can save up to 20% of weight.

    You can see a short video about the move on this German website (couldn't find an English version): http://www.bild.de/geld/wirtschaft/s...3176.bild.html
    The real interesting part is at 00:14, the truck had to go through several roundabouts and in this video you can see the truck traveling one, at one point the tractor can't see the trailer at the end!

    Broken link! You cannot just post the displayed url with the "...." in it.
    SMA SB 3000, old BP panels.
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  • Cariboocoot
    Cariboocoot Banned Posts: 17,615 ✭✭✭
    #7
    Re: Wind Turbine pics, In case you were curious.

    Possibly this site is what he intended: http://www.bild.de/geld/wirtschaft/siemens/hier-wird-das-groesste-rotorblatt-der-welt-durch-daenemark-gefahren-25473176.bild.html
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #8
    Re: Wind Turbine pics, In case you were curious.

    Odd?? it works just fine on 3 other sites, guess I should have checked it and that added link is correct. Anyway, that is a big wind unit. I can't remember for sure, but I think the hub is 13 or 16 meters wide.
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  • inetdog
    inetdog Solar Expert Posts: 3,123 ✭✭✭✭
    #9
    Re: Wind Turbine pics, In case you were curious.
    solorone wrote: »
    Odd?? it works just fine on 3 other sites, guess I should have checked it and that added link is correct. Anyway, that is a big wind unit. I can't remember for sure, but I think the hub is 13 or 16 meters wide.

    And one of the components of the blades is good old fashioned balsa wood!
    SMA SB 3000, old BP panels.
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #10
    Re: Wind Turbine pics, In case you were curious.

    Who would have gussed balsa wood? I thought balsa was slow growing and $$, it sure was exspensive in the 50s. They are big , here is a link to the big blade listed above, mentioning the balsa wood in the wing!! http://www.zimbio.com/Going+Green+at+Home/articles/5zRXm4nOT9S/Siemens+wind+blade+manufacturing+world+longest
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #11
    Re: Wind Turbine pics, In case you were curious.

    Folks keep digging up neat info on this topic. here is a great Siemens video from China, there is a stream of electrical issue videos at the bottom, some great night shots of the cities. Just grab the wind video, impressive how these things are hand made.

    http://www.energy.siemens.com/entry/energy/hq/en/#/power-matrix-china-wind-hd
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  • peakbagger
    peakbagger Solar Expert Posts: 341 ✭✭✭
    #12
    Re: Wind Turbine pics, In case you were curious.

    Not sure where those blades were heading as the windfarm in Millsfield NH (north of Mt Washington) is complete. Possibly Lowell wind in VT? There is an remote railroad siding in Gilead Me on RT 2 that has been used recently to support a couple of wind projects in the area like the Millsfield NH, Roxbury Farm and one other industrial project in the area.
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #13
    Re: Wind Turbine pics, In case you were curious.

    Could be, but you would think that once they got on a truck they would be headed to an erection site, as this would add 2 more crane lifting cost into the setup per blade.

    Overnight the other side of the world found this.. Folks keep digging up neat info on this topic. here is a great Siemens video from China, there is a stream of electrical issue videos at the bottom, some great night shots of the cities. Just grab the wind video, impressive how these things are hand made.

    http://www.energy.siemens.com/entry/energy/hq/en/#/power-matrix-china-wind-hd
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  • westbranch
    westbranch Solar Expert Posts: 5,183 ✭✭✭✭
    #14
    Re: Wind Turbine pics, In case you were curious.

    followed some of the links... flabbergasted at what you see in this one

    http://www.energy.siemens.com/hq/en/power-generation/renewables/wind-power/?nocache=9818691457620.771%20%20%20%20%20%20%20%20%20%20%20#webfeature=/apps/features/swt-6/all/en

    Note the number of wheel sets under the turbine and the length of the trailer!! WOW

    listen to the description of the equipment being installed ....WHILE... the apparatus is dangling from the cranes (look at the size of them) and there are individuals ... bracing... the blades while the turbine in the background is in action...
     
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  • inetdog
    inetdog Solar Expert Posts: 3,123 ✭✭✭✭
    #15
    Re: Wind Turbine pics, In case you were curious.

    Just all of those wheels being hydraulically steered together was impressive to watch.
    SMA SB 3000, old BP panels.
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  • Rybren
    Rybren Solar Expert Posts: 351 ✭✭
    #16
    Re: Wind Turbine pics, In case you were curious.

    When I lived in Germany, there were wind farms throughout our region. Even when riding my bike by them, the true size of these beasts didn't really hit home. It was only when they were down for repairs and the blades were on the ground with trucks and people beside them did the enormity really strike you.
    Plus, it was interesting to see people walk into the hubs.
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #17
    Re: Wind Turbine pics, In case you were curious.

    I have never been close to one, other than a bad image I took in Belgium, of one behind a 300 YO home, do they make mush noise??
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  • BB.
    BB. Super Moderators, Administrators Posts: 33,654 admin
    #18
    Re: Wind Turbine pics, In case you were curious.

    I have heard gear box noise--But there is a question if the "sub sonic" or sound frequency/pressure waves below ability of human to hear is an issue or not (I have read one article where person complained about hum from electrical substation--nothing they could do to reduce the sound levels would satisfy the neighbor. Until they planted trees as a visual barrier--Did not affect measured sound levels--but did resolve the noise complaint)

    There is certainly an issue of flicker (rotating blade shadows from sun) irritating many (or worse, if epileptic tendencies).

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #19
    Re: Wind Turbine pics, In case you were curious.

    The epileptic issue makes sense. I had heard there was swooshing noise coming form the blades, the tips if the 505' blades are moving at 180 MPH at 10 RPM, got to make some noise.
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  • Rybren
    Rybren Solar Expert Posts: 351 ✭✭
    #20
    Re: Wind Turbine pics, In case you were curious.

    I found that there is a slight whooshing sound, but it's barely there. It is only noticeable if you are very close to the unit and are outdoors. You can't heard them if you are driving by in a car.

    None of the locals that I spoke to had any complaints about them.
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  • solorone
    solorone Solar Expert Posts: 257 ✭✭✭
    #21
    Re: Wind Turbine pics, In case you were curious.
    Rybren wrote: »
    I found that there is a slight whooshing sound, but it's barely there. It is only noticeable if you are very close to the unit and are outdoors. You can't heard them if you are driving by in a car.

    None of the locals that I spoke to had any complaints about them.



    That's good to know, sure might help defeat the "not in my back yard group" hope they get the tidal machines into a productive design,
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