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Google open sources solar atmospheric water generator
111–120 of 246 posts
Re: Google open sources solar atmospheric water generator
#112Earlier quoted context omitted.
Potentially as a water source for data center cooling? Not sure if it’d scale to those needs
My question was more, how does this help individuals without access to clean water, not a dystopian 'how can it be co-opted by corporations for business ends', but I appreciate the varying definitions of "practical" people have.
> dystopian 'how can it be co-opted by corporations for business ends'
Why is it "dystopian" and "co-opting" if a company uses a technology like this to operate in a more environmentally friendly way?
People love to shit on companies (not specific ones, just "big companies" as a concept in general), completely ignoring where our standard of living comes from.
Re: Google open sources solar atmospheric water generator
#113Earlier quoted context omitted.
I think it's very exciting. I'd love to have everything in/around my house open source.
Quoted post unavailable.
What a totally disingenuous way to recieve the comment's spirit, which takes some serious miscontruing to take it to wherever you're trying to take it.
Re: Google open sources solar atmospheric water generator
#114I want to make an orchard on a hill in the maritime pacific northwest. Its a somewhat odd climate where the time that gets hottest is when it also tends to be dryest (east coast tends to be wetter when hotter). I wonder if something like this (possibly with less focus on "clean" water - it's rural and breezy, so I don' think raw output would harm trees...) could be suitable for generating summer water for tree irriga…
No. The output is orders of magnitude too low. Trees stay cool by evaporating water. The solar energy they're absorbing by doing this is a lower bound on the energy you have to put in to condense that same water out of the air. But tree leaves convert about 75% of the sunlight that hits them into heat (they're a bit more than 75% "efficient" at doing something they don't want) while PV solar panels are only about 21% efficient. So you'd need more than three times as much solar-panel area as tree leaf area for that to work out.
Re: Google open sources solar atmospheric water generator
#115So, a solar powered dehumidifier? At first pass, I would guess that something like this would primarily be useful in places with naturally high humidity, which aren't likely to have a shortage of water in the first place, no? Maybe the argument is that the natural sources of water are dirty, and extracting from the air is automatically clean and safe to drink, but it still seems like it may be more resource efficient…
> and extracting from the air is automatically clean and safe to drink It isn't, though. Bacteria accumulate. Dehumidifiers are generally very nasty. Although bacteria can then be killed (not sure about their toxins), while other contaminants may not be very easy to get rid of. Almost every place on Earth has humidity above 0%. Which makes it possible to extract water, even if it's very inefficient. People have conde…
Bacteriostatic materials aren't rocket science. One of the best dehumidifier materials, copper, is also one of the best bacteriostats. It's just expensive.
Re: Google open sources solar atmospheric water generator
#116Check out Thunderf00t's videos cricising solar water collectors, e.g.: - https://www.youtube.com/watch?v=vc7WqVMCABg - Zero Mass Water: BUSTED! "Honestly, it drives me crazy how many people have reinvented the dehumidifier, put a solar panel on it, and the media has danced around like theyve just saved the world!" - https://www.youtube.com/watch?v=aPvXnmBIO7o - Self-filling water bottle: BUSTED! " The fact that its t…
> in places where the air is wet, it rains, and you don't need it.
- Rain water collected in ponds/rivers may be contaminated/infested.
- Lack of fresh water in the ocean/islands is also an issue.
The two things that are available almost everywhere are air and sun.
Re: Google open sources solar atmospheric water generator
#117Check out Thunderf00t's videos cricising solar water collectors, e.g.: - https://www.youtube.com/watch?v=vc7WqVMCABg - Zero Mass Water: BUSTED! "Honestly, it drives me crazy how many people have reinvented the dehumidifier, put a solar panel on it, and the media has danced around like theyve just saved the world!" - https://www.youtube.com/watch?v=aPvXnmBIO7o - Self-filling water bottle: BUSTED! " The fact that its t…
A commercial system is in use on the Warm Springs reservation in Oregon: https://www.opb.org/article/2021/08/10/warm-springs-leaders-...
Re: Google open sources solar atmospheric water generator
#118Check out Thunderf00t's videos cricising solar water collectors, e.g.: - https://www.youtube.com/watch?v=vc7WqVMCABg - Zero Mass Water: BUSTED! "Honestly, it drives me crazy how many people have reinvented the dehumidifier, put a solar panel on it, and the media has danced around like theyve just saved the world!" - https://www.youtube.com/watch?v=aPvXnmBIO7o - Self-filling water bottle: BUSTED! " The fact that its t…
Their paper is open access: https://www.nature.com/articles/s41586-021-03900-w
They claim that this device with 1m² footprint could "well within thermodynamic limits" alleviate thirst for a billion people living in "tropical regions" (daytime relative humidity 30%-90%).
I already look forward to the debunk. It all seems very high-level. My money is on that these regions where the device would be viable do not actually suffer of lack of access to drinking water to start with - not to the tune of a billion thirsty people at least.
Re: Google open sources solar atmospheric water generator
#119Earlier quoted context omitted.
So you're saying you wish Google concentrated on evil and didn't have any redeeming qualities at all?
No redeeming qualities. This is only a gesture of distraction. All Google has concentrated on is evil. Hell, this project could be the aftermath of a Google PM gutting a team.
I whole-heartedly agree. Google is using this projects as a cover so that they can keep invading our privacy and keep uesrs hostages for money.
Re: Google open sources solar atmospheric water generator
#120Check out Thunderf00t's videos cricising solar water collectors, e.g.: - https://www.youtube.com/watch?v=vc7WqVMCABg - Zero Mass Water: BUSTED! "Honestly, it drives me crazy how many people have reinvented the dehumidifier, put a solar panel on it, and the media has danced around like theyve just saved the world!" - https://www.youtube.com/watch?v=aPvXnmBIO7o - Self-filling water bottle: BUSTED! " The fact that its t…
I will never check out a Thunderfoot video. He is a hateful pitiful man.