Station needs solar shade

From: Gturner6PPC@... [mailto:Gturner6PPC@...]

I was looking at the stations that have their axis oriented 'up', and
use a 45 degree mirror to shine light back down onto other
reflectors, and then into the station. In the designs where the
second reflectors are exterior to the station, so the light comes
from large windows on the outside of the station, no provision is
being made to block out the sun's rays coming in directly, on each
side of the second reflector.

I'll assume you're referring to the Stanford Torus design.

It's actually not a problem, because the body of the torus blocks the light
from the windows. The torus rotates in the plane of the ecliptic. All the
windows face inward. Thus, no sunlight can enter the windows directly.

I have seen one design that your proposal for a habitat-shading sun shield
reminded me of:
http://www.ssi.org/assets/images/Ch06p088.gif

but here I think the concern is more about not contributing to unwanted heat
buildup than about preventing direct sunlight from entering windows.

Regards,

Mike Combs

From:
Gturner6PPC@... [mailto:Gturner6PPC@...]
I was looking at the stations that have their axis oriented 'up', and
use a 45 degree mirror to shine light back down onto other
reflectors, and then into the station. In the designs where the
second reflectors are exterior to the station, so the light comes
from large windows on the outside of the station, no provision is
being made to block out the sun's rays coming in directly, on each
side of the second reflector.
I'll assume you're referring to the Stanford Torus design.

It's actually not a problem, because the body of the torus blocks the light from the windows. The torus rotates in the plane of the ecliptic. All the windows face inward. Thus, no sunlight can enter the windows directly.

I have seen one design that your proposal for a habitat-shading sun shield reminded me of:
http://www.ssi.org/assets/images/Ch06p088.gif

but here I think the concern is more about not contributing to unwanted heat buildup than about preventing direct sunlight from entering windows.

Regards,
Mike Combs