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options for house heating by reflected light - Page 2

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Posted by mn_mn on November 11, 2008, 7:11 pm
On Nov 11, 5:31am, nicksans...@ece.villanova.edu wrote:

Good idea, living on top of a solar-oven-garage (or maybe on side of
it) might be best, you get normal sunlight strength in normal room on
top and when more heat wanted just direct a fan at the hot floor.

What solar-garage design would be best - -

a pile of black bricks in middle to store heat and leech it upstairs
with parabola curved wall on north wall,

many heliostats (moving mirrors that track sun and bounce light to
focus) at edge of property for least visual impact just blasting the
pile of bricks (this seems max efficient design - - how to design
heliostat array, what limits?), or

something else???????

hmm, one could put bricks on second floor and live below.


Posted by mn_mn on November 11, 2008, 9:16 pm

Does anyone know how sun "seeming-brightness" varies with latitude.  I
say this since humans at the equator can 1) occasionally look at the
sun or have it in the corner of their eye and 2) live in a sun-filled
room or field without bad effects at these equator levels, so with
mirrors we can boost sunlight to equator-levels without fear of
eyestrain, cancer, or just uncomfortableness.  I do not think we can
just go by insolation, or energy/square meter since people are upright
so look at the sun from a vertical position so their eyes do not vary
with latitude and most room reflection comes from walls which also are
not lying flat on the ground.  I think "seeming-brightness" most
depends on how the longer air path sunlight must take to get to higher
latitudes diffuses and reflect more sunlight as latitude increases. I
haven't been able to find this.


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