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Rooftop solar system fires 1
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JohnRBaker
Mechanical
It also could have been some German who came up that word ;-)
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
Hahaha!
You use "sesquipedalianism" to complain about photovoltaic??!!
These systems are generally referred to as "photovoltaic" or "PV system" or "solar" carefully, without the word 'system' attached.
Keith Cress
kcress -
You use "sesquipedalianism" to complain about photovoltaic??!!
These systems are generally referred to as "photovoltaic" or "PV system" or "solar" carefully, without the word 'system' attached.
Keith Cress
kcress -
Alistair_Heaton
Mechanical
There is two domestically.
Solar thermal is the most efficient and uses vacuum tubes to heat water which is then used.
Photovoltaic produces usefull electrons.
There are a couple of other methods, the most scary one is again thermal which involves mirrors onto a ball heating water to utterly stupid temps and pressures which then gets expanded through a turbine. To produce electrons.
Solar thermal is the most efficient and uses vacuum tubes to heat water which is then used.
Photovoltaic produces usefull electrons.
There are a couple of other methods, the most scary one is again thermal which involves mirrors onto a ball heating water to utterly stupid temps and pressures which then gets expanded through a turbine. To produce electrons.
enginesrus
Mechanical
They also increase the work of fire people trying to put out the structure fires.
JohnRBaker
Mechanical
Alistair_Heaton said:
You mean like this solar thermal farm where mirrors reflect the sunlight onto a series of 'boilers' mounted on towers, creating steam which then turns a set of turbines down at ground level? The picture below shows the Ivanpah solar farm near Ivanpah, CA, just inside the border from Nevada, on the way to Las Vegas:
April 2019 (Sony a6000)
Here's an earlier shot of one of the towers taken while the facility was under construction:
May 2012 (Sony DSC-H2)
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
TugboatEng
Marine/Ocean
FYI, they are mostly using sodium or molten salts in the tower instead of water.
JohnRBaker
Mechanical
Yea, I knew that ;-(
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
TugboatEng
Marine/Ocean
Streamers is the official name.
Imagine what offshore wind turbines are doing to birds where they aren't so easily counted when dead?
Animals are harmed by all types of power generation. That is fact. But a serious consideration we need look at is the sudden shift in light temperature from low energy sources such as LEDs. Suddenly we have moved from 1700k to 6000k when transitioning from incandescent to LED. In that same time period there has been a mass die off of insects and I believe artificial late night light is a contributing factor.
Imagine what offshore wind turbines are doing to birds where they aren't so easily counted when dead?
Animals are harmed by all types of power generation. That is fact. But a serious consideration we need look at is the sudden shift in light temperature from low energy sources such as LEDs. Suddenly we have moved from 1700k to 6000k when transitioning from incandescent to LED. In that same time period there has been a mass die off of insects and I believe artificial late night light is a contributing factor.
Alistair_Heaton
Mechanical
Thats the scary ones, I didn't go into the full details of them, they are basically setup like a nuclear reactor with primary and secondary circuits. Don't know much about them just read a bit of low level interest stuff.
They have done plenty of studies about on and offshore windfarms in UK and birds. The populations don't show any drop in numbers and no vast numbers of fatalities around onshore ones.
They have done plenty of studies about on and offshore windfarms in UK and birds. The populations don't show any drop in numbers and no vast numbers of fatalities around onshore ones.
TugboatEng
Marine/Ocean
Huh, that's odd because our studies show vast fatalities around our onshore ones.
Alistair_Heaton
Mechanical
Interesting will have to go look again.
They have put a lot of work in on minimising it in both Scotland and Norway.
I think one of the solutions was to paint one blade black.
Here is the sort of stuff we see on the subject in Scotland. And there is quite a large anti windfarm movement.
Birds strikes and avoidance of wildlife has been part of my professional life for years.
Windfarms are actually a bit of a risk for aviation. They mess with radar mosaics and also can do nasty things to the lower wind profiles and turbulence. So we do get briefed on them and follow them.
Seems to depend on your definition of vast. Compared to the genocide that cats do to the bird populations its actually a very small amount. More of an excuse for NIMBYs to try and not have them nearby.
They have put a lot of work in on minimising it in both Scotland and Norway.
I think one of the solutions was to paint one blade black.
Here is the sort of stuff we see on the subject in Scotland. And there is quite a large anti windfarm movement.
Birds strikes and avoidance of wildlife has been part of my professional life for years.
Windfarms are actually a bit of a risk for aviation. They mess with radar mosaics and also can do nasty things to the lower wind profiles and turbulence. So we do get briefed on them and follow them.
Seems to depend on your definition of vast. Compared to the genocide that cats do to the bird populations its actually a very small amount. More of an excuse for NIMBYs to try and not have them nearby.
TugboatEng
Marine/Ocean
I had a friend who's job it was to find and count dead birds on wind farms.
It wasn't so much an issue of the number of birds killed but the types of birds. The raptors and predatory birds were most likely to fall victim.
It wasn't so much an issue of the number of birds killed but the types of birds. The raptors and predatory birds were most likely to fall victim.
Alistair_Heaton
Mechanical
That top bit gets to 550 degs C
Just googled why they call them streamers. Poor birds getting roasted
Just googled why they call them streamers. Poor birds getting roasted
Yeah Alistair, probably not a problem up your way, more of a Southern California focus issue.
Keith Cress
kcress -
Keith Cress
kcress -
Alistair_Heaton
Mechanical
Do you paint one blade black in the USA?
Negative.
We make the blades water-clear so birds can't see them.
![[lol]](/data/assets/smilies/lol.gif "[lol] [lol]")
I kid. But no black blades.
Keith Cress
kcress -
We make the blades water-clear so birds can't see them.
I kid. But no black blades.
Keith Cress
kcress -
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