[SpaceProgram] Fwd: Space Farmers: LEDs As Key To NASA's Permanent Lunar Life Support - Forbes

[Máté Ravasz]

Hi,

I've just started to build up my own algae cultures at home last month.
Seeing your post on how far you've progressed already in this, I
immediately became jealous. Would you by any chance have any publicly
available data on how your setup runs? I am building a sunlight powered
reactor at the moment, but I would be eager to read up on more advanced
methods if possible.

Thanks for any info,
Mat

On 4 September 2012 22:48, cole santos <cksantos85 at gmail.com> wrote:

> For big area lighting plasma is more efficient than leds.
> http://www.plasma-i.com/index.html
>
>
> On Wed, Sep 5, 2012 at 10:46 AM, cole santos <cksantos85 at gmail.com> wrote:
>
>> LED's are more expensive than florescents...and that is after order of
>> magnitude reductions in cost over the last few years. I found some vendors
>> in china for LED lights. Florescent technology requires bulb changes every
>> 6 months to a year, this makes it unworkable for space, but good for earth
>> testing. LED research on optimal spectrum for algae growth is an
>> open research field. Another problem is the design for my algae reactors
>> needs lights that are 360, but leds are about 130 deg. a bi directional
>> light would cost a lot more due to custom nature of such a light, another
>> option is to just stack 2 lights back to back... but now you've doubled you
>> costs and lighting is more that 50% of the total cost.
>>
>> On Wed, Sep 5, 2012 at 10:25 AM, Jerry Isdale <isdale at gmail.com> wrote:
>>
>>> Growing in space requires light. Space stations may be able to orient
>>> themselves for full time growing but Colonies on moons, etc will need some
>>> power source for when their rotation takes them into night (moon night = 2
>>> weeks).
>>>
>>> This article talks about using LEDs powered from a small nuclear power
>>> source, similar to that powering the Curiosity Rover.
>>>
>>>
>>> http://www.forbes.com/sites/brucedorminey/2012/08/31/space-farmers-leds-as-key-to-nasas-permanent-lunar-life-support/
>>>
>>>  Jerry Isdale
>>> isdale at gmail.com
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>> SpaceProgram at lists.hackerspaces.org
>>> http://lists.hackerspaces.org/mailman/listinfo/spaceprogram
>>>
>>>
>>
>
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