asteroza + energy + footprint   8

timbertower.de
Apparently a low eco footprint wind turbine tower made of laminated wood.
spruce  materials  construction  footprint  CO2  energy  green  laminate  wood  polygon  tower  turbine  wind  Delicious 
november 2012 by asteroza
1112.3266.pdf (application/pdf Object)
The 3D optimized structure based on simulation with triangles and mirrors for concentration shown in Figure 3b,c is weird. Too bad solar cells aren't normally made as triangles, but as rectangles or squares. Seems the simple tower type that looks like waffle cut fries may be the easiest to make though.
solar  PV  packing  packaging  2D  3D  3DPV  power  generator  green  energy  research  small  footprint  reflection  capture  structure  cube  Delicious 
december 2011 by asteroza
How 3-D Photovoltaics Could Revolutionize Solar Power - Technology Review
Hrm, 9 panel cube is roughly 4 times better than equivalent non-tracking 2D flat panel at a fixed angle. But comparing the equivalent area monolithic flat 2D fixed panel, it is only 2 times better. For reference, the original footprint using a 2D panel with tracking is 1.8 times better. So, for roughly double the installed $/KW, you can reduce your footprint by 3/4. So this works for area restricted installations. Whether the performance numbers are real for cloudy days at non-optimal angles as well as the alleged increase in peak hour ops is a concern.
solar  PV  packing  packaging  2D  3D  3DPV  power  generator  green  energy  research  small  footprint  reflection  capture  structure  cube  Delicious 
december 2011 by asteroza
Masdar/WINDSTALK | Atelier DNA
I'm having a little trouble figuring out how you get the poles to lean back and forth in a steady wind. Artificially texture the pole surface to create turbulence maybe? Is there enough natural turbulence and wind speed change to ensure the pole swings enough to generate a practical amount of energy? I wonder if this could be built in a smaller form like some sort of rooftop astroturf module for building retrofits?
windstalk  piezoelectric  cantilever  beam  pole  wind  turbulence  power  generator  green  energy  high  density  footprint  alternative  Delicious 
october 2010 by asteroza

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