--- In papercreters@yahoogroups.com, "slurryguy" <slurryguy@...>
wrote:
>
> It's simple planetary geometery.
>
> The earth's rotational axis is tilted in relation to the plane of
> it's orbit. (This is what gives us seasons) Therefore the arctics
> have drastically short solar days in winter, if the sun makes it
> above the horizon at all. The angle of incidence means that the
> solar radiation has to fight through a much thicker layer of
> atmosphere also. There's simply a lot less solar radition to be
> collected.
>
> Sublimation effect (ice evaporation) inhibits ice buildup on a wind
> turbine at extremely cold temperatures(below zero F). Ice is a
> bigger problem at temperate climates where you get freezing rain.
>
> To directly answer your question, I've seen plenty of pictures of
> wind turbine disasters. That's why you mount one on a tower a safe
> distance from you house instead of on your roof. (that and it's a
> lot easier to maintain, and you don't have to live with vibration
> noise).
>
> Dan and Dan on otherpower have a lot of great stories in the
> experiments section. Lots of great reading there. They go into
> great detail describing failures and what they learned from them.
> Their information is free. Hugh Piggot has also detailed his
> failures as well as his successes.
>
> The discussion board on that site is one of the best discussion
> boards around. I highly reccomend it. That board was one of many
> that was looked at to see why it was so successful before
> Papercreters was created.
>
>
>
> --- In papercreters@yahoogroups.com, "Robert Merrill"
> <robertmerrill1953@> wrote:
> >
> >
> > Hi S.G.;
> >
> > <<<<<Solar power isn't practical in the arctics>>>>>>
> >
> > I am wondering where or how you derive this assumption?
> >
> > <<<<<wind in Alaska >>>>>>>
> >
> > Have you ever seen the pictures of ice encrusted blades stuck 4'
in
> the
> > ground when they severed in a 60 m.p.h.??
> >
> > See Yaaaa........ Bob
M.
> >
>
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