New Cooling/collection experiment
I've had the idea of creating an open ended airbed type transparent tunnel, suspended from the inner bubble cavity skin so that the ducts run perpendicular to the axis of the tunnel. this 'air bed type structure/duct hoop tunnel' is not filled with air but water. the open ends are held within a trough full of the cooling water creating a liquid seals. the 2 troughs at either end of the 'duct hoop tunnel' are independent, but are linked via a pump and a heatsink coil. the cooling liquid is pumped from one trough to the other and the cooling fluid is drawn siphonically over the tunnel to equalise the levels of the 2 troughs.
The duct structure could simply be two sheets of poly welded along parallel lines. The tubes could have a lightweight v extrusion inserted along the length of each tube to prevent it collapsing and the water simply draining out. Or we could have a pressurised sealed manifolds instead of troughs. This could made by only welding to a foot of the end of the sheets. The outer edges could be then welded forming a manifold. the whole structure would then be like a suspended padded envelope.
If there is a small space between the bubble cavity in which the interior environment air can freely move we will get condensation on both sides increasing the efficiency.
Siphonic Action Explained
As there is no air within the hooped ducts only water, and due to the fact that water cannot be compressed or stretched, the action of the water leaving one end of a hoop will draw water up at the other end. the hoop in effect acts like a horizontal pipe connecting the two troughs. as long as the hoops are prevented from collapsing in on themselves the levels in the two troughs will always remain equal.