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SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 18,268

Re: Testing My Hacienda On Mars Society Devon Island

Energy from the sun

Devon Island is the largest uninhabited island on Earth. It is found at 75oN and has  surface characteristics that strongly resemble the surface of Mars. Being so far north, Devon Island has solar irradiance similar to the solar irradiation on the Martian Equator. Except for a brief period in June, the intensity of the Sun on Devon Island never exceeds the solar intensity on Mars.

Although the light intensity (near local noon only) on Devon Island is similar to that expected on the Martian Equator, the duration of daylight during this time is 24 hours per day because of its high latitude (above the Arctic Circle).

On Mars, near the equator, the duration of daylight is about 12 hours, followed by approximately 12 hours of darkness.

Mars, spring is 7 months, summer is 6 months, fall is 5.3 months and winter is a little over 4 months long..

https://www.slideshare.net/vijayraskar5 … alculation

Edit reference
https://www.ossila.com/pages/solar-cells-theory

The oscurity opaceness of the light and difussing of its energy can not be predicted for intensity level or for its duration hence why we need more than solar for mars.

tahanson43206

Member

Registered: 2018-04-27

Posts: 2,159

Re: Testing My Hacienda On Mars Society Devon Island

For SpaceNut re #101

Thanks for this overview of Devon Island, and for the link to the slideshare site, which I had not seen before.  It appears to have potential for further visits. 

The computation of light levels would appear (to me at least) to have direct application for lighting of interior spaces.

I'm still hoping someone will discover any available reports from the Russians on their development of subterranean living/working spaces in their far North.

(th)

SpaceNut

Administrator

From: New Hampshire

Registered: 2004-07-22

Posts: 18,268

Re: Testing My Hacienda On Mars Society Devon Island

We need to keep in mind that we will make methane by other means such as an  Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation this would also include feeding algea that is not used into the source of materials to feed the digester....

https://sswm.info/sswm-solutions-bop-ma … l-scale%29

The calorific value of biogas is about 6 kWh/m3, what corresponds to about half a litre of diesel oil.

The atmosphere of Mars is the layer of gases surrounding Mars. The atmospheric pressure on the Martian surface averages 600 pascals (0.087 psi), about 0.6% of Earth's mean sea level pressure of 101.3 kilopascals (14.69 psi)...

While the oceans have more co2 desolved it still makes sense to test out production safety for anything we would want to send to mars.