Difference between revisions of "Shared:2019Concept"

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(Off-Earth Manufacturing and Construction)
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"Experiments with ice caps as insulation medium from solar radiation"
 
"Experiments with ice caps as insulation medium from solar radiation"
 
  
 
[[File:20191201_233809.jpg| 850px]]
 
[[File:20191201_233809.jpg| 850px]]
 
  
 
==='''Keywords'''===
 
==='''Keywords'''===
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We have considered two options, both based on the act of excavating the soil. The first kind of excavation needs to go deep enough so that a thickness of 5 meters of Martian soil can act as insulation for the radiation. The second one, for the moment in its conceptual and experimental stage, still underground, would minimize the excavation effort and insulation from radiation will rely on an ice cap of 1 meter thickness. Because water does not subsist in liquid form in the atmospheric conditions aforementioned, the ice caps will be enclosed and pressurized to prevent loss of ice mass (for example during the day when temperatures rise to 20 degrees Celsius.
 
We have considered two options, both based on the act of excavating the soil. The first kind of excavation needs to go deep enough so that a thickness of 5 meters of Martian soil can act as insulation for the radiation. The second one, for the moment in its conceptual and experimental stage, still underground, would minimize the excavation effort and insulation from radiation will rely on an ice cap of 1 meter thickness. Because water does not subsist in liquid form in the atmospheric conditions aforementioned, the ice caps will be enclosed and pressurized to prevent loss of ice mass (for example during the day when temperatures rise to 20 degrees Celsius.
 
  
 
[[File:20191201_233828.jpg| 850px]]
 
[[File:20191201_233828.jpg| 850px]]
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Stay tuned for more!
 
Stay tuned for more!
 
  
 
[[File:20191201_234019.jpg| 850px]]
 
[[File:20191201_234019.jpg| 850px]]

Revision as of 13:46, 1 January 2020


Off-Earth Manufacturing and Construction

Concept


  ESA 7.jpg


Title

"Experiments with ice caps as insulation medium from solar radiation"

20191201 233809.jpg

Keywords

Inflatable, ice cap, pressurization, radiation shield.

Abstract

The discovery of water ice immediately under the surface of Mars by NASA’s Phoenix lander in 2008 prompted in our team an idea. Due to the very thin atmosphere surrounding the planet, an inhabited space needs good shielding from radiation. Solid water presents an opportunity.

Description

We have considered two options, both based on the act of excavating the soil. The first kind of excavation needs to go deep enough so that a thickness of 5 meters of Martian soil can act as insulation for the radiation. The second one, for the moment in its conceptual and experimental stage, still underground, would minimize the excavation effort and insulation from radiation will rely on an ice cap of 1 meter thickness. Because water does not subsist in liquid form in the atmospheric conditions aforementioned, the ice caps will be enclosed and pressurized to prevent loss of ice mass (for example during the day when temperatures rise to 20 degrees Celsius.

20191201 233828.jpg

20191201 233845.jpg

20191201 233856.jpg

20191201 233950.jpg

20191201 234010.jpg


Future questions

Further research will explore the feasibility of this idea in terms of:

1. Capabilities of pressurization of this specific inflatable.

2. Availability of ice to be used.

3. Technology necessary to model the ice in the desired shape.

4. Structural challenges.

For the time being, the team considers also the capabilities of these ice caps to absorb and transmit (sun)light, functioning as skylights. Several geometries will be explored and made available to ‘take a shine to’.

First experiment, Inspired by diverging-lens geometry. The convex side as seen from top-view, collects light and transmits it. It was visible, through the experiments, that the point where this curved surface is cut by an arbitrary plane, the ‘cut’ edges will shine the light transmitted from the opposite side.

Stay tuned for more!

20191201 234019.jpg