Author Topic: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O  (Read 16096 times)

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Offline ErikTheNorwegian

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« Last Edit: April 10, 2016, 06:45:38 pm by ErikTheNorwegian »
 

Offline fake-name

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #1 on: February 01, 2016, 06:59:56 am »
It's going to be enormously power hungry, and not very efficient. There's no way in hell they'll get anywhere near enough power from that little tiny solar panel and battery to run the peltier.

Making that a mobile device is just basically idiotic, and if it's going to be a stationary device, a more efficent refrigeration system is a much better idea.

Furthermore, the diagram is just silly. What the fuck is a "volt amplifier"? The hot side heatsink is waaaaay too small (peltiers dissipate MUCH more energy then they remove from the cold side). Also, the heat-sink fins are all facing the wrong way for the supposed air-flow.

------

TL;DR it's designed by a industrial design person who doesn't know shit about any of the technologies they want to employ.

If you wanna do it right (and absolutely insist on the whole mobile thing), hang the peltier hot-side heatsinks out of the silly casing, directly in the air-flow. Make sure they're at least 2X larger then the cold-side heatsink. Hook a generator to the bicycle drivechain to run the peltier. Throw away all the stupid swishy plastic mouldings.
« Last Edit: February 01, 2016, 07:05:11 am by fake-name »
 

Offline Neganur

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #2 on: February 01, 2016, 07:15:54 am »
What does "drinkable" mean anyway :)
 

Offline _Andrew_

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #3 on: February 01, 2016, 08:10:15 am »
It is lightly that you could not permanently soley drink the water collected in this way. In all lightlyhood this water would be zero TDS (total devolved solids) so for longterm sole water source consumption it will need buffering with appropriate trace elements (eg rehydration salts). Zero TDS water may possibly also cause an imbalance in the mineral balance of your body though drawing off minerals  to combine with the water molecules. The design is intended to be used fitted on a bicycle where you will be perspiring and already loosing eletrolights, so just drinking zero TDS water as well may be a double whammy.
 

Offline m98

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #4 on: February 01, 2016, 10:09:52 am »
Just sounds like they're trying to build a way too complex solution for a simple problem, that has a simple solution:
 

Online tggzzz

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #5 on: February 01, 2016, 10:19:38 am »
If you ask an industrial designer to make an egg, they will come up with something that is the right size, shape and colour. The better ones will be a realistic weight.

None of them will contain the white and the yolk.
There are lies, damned lies, statistics - and ADC/DAC specs.
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Online blueskull

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #6 on: February 01, 2016, 12:01:16 pm »
<disgusting>
Drinking condensed others' breathe and sweat?
</disgusting>
 

Online coppice

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #7 on: February 01, 2016, 01:04:40 pm »
What does "drinkable" mean anyway :)
Not ice and not steam. Probably also in the 0C to 40C range, although anything hotter can be allowed to cool. Sounds like they avoided the word most of us would be looking for - potable.
 

Offline Melt-O-Tronic

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #8 on: February 01, 2016, 01:09:40 pm »
Thing is, when water is scarce, so are humidity and electricity in most cases.  Looks like a poor solution to a non-existent problem.

But more importantly:  Blecchhhh.  I wouldn't drink the water out of even a brand new dehumidifier without extensive filtration & sterilization.
 

Offline Don Hills

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #9 on: February 01, 2016, 01:25:32 pm »
He also ought to take a look at how well cheap Peltier based dehumidifiers work (not):
 

Offline HAL-42b

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #10 on: February 01, 2016, 01:43:43 pm »
Looks like a great way to catch Legionnaire's Disease. 
 

Offline edavid

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #11 on: February 01, 2016, 01:43:57 pm »
Comments from the original article:

Quote
John Houldsworth
This device was originally in the press a year ago and the claims are still just as outrageous as they were then. This is pure fantasy!...
To condense 0.5 litres an hour requires heat removal at the rate of 340W.
Even optimistically allowing only 10 degC cooling to the dew point for a thermo-cooler COP of 3 still requires 113W of electrical power. This requires a solar panel area of at least 0.75 sq meter or 2 ft by 4ft !!! not the few square inches shown on this press release image.
Denise Chow, you are doing the industry a disservice by publishing Retezár's claims without checking whether such performance is physically possible.
Like · Reply · 3 · Jan 25, 2016 1:58pm

Quote
Viktor Gorbunov · Works at Technomatix / ???????????
Also, for 0.5l need to dry ~30m^3 of air. This is more, than can produce huge and loud server ?ype turbine.
Like · Reply · Jan 27, 2016 12:55pm

Someone else described it as "vaporware"  ;D
 

Offline ElektroQuark

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #12 on: February 01, 2016, 11:49:23 pm »
Quote from: HAL-42b on Today at 03:43:43
Looks like a great way to catch Legionnaire's Disease.



You must breath contaminated water to catch Legionnaire's Disease. Drinking it wil not be enough.

OTH, that system not only condenses pure water if you are not in a "clean" natural space.

Offline DarkStar

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #13 on: February 02, 2016, 09:04:00 am »
Drinking condensed others' breathe and sweat?

It's was very eye opening when I learned how our wastes (liquids and solids) are treated, filtered and returned to the water distribution system!
--Chris ^_^
 

Online tggzzz

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #14 on: February 02, 2016, 12:15:02 pm »
<disgusting>
Drinking condensed others' breathe and sweat?
</disgusting>

Old joke: Londoners drink water that has been filterd by seven pairs of kidneys.
There are lies, damned lies, statistics - and ADC/DAC specs.
Gliding aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
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Offline Kalidor

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #15 on: February 10, 2016, 03:59:24 am »
<disgusting>
Drinking condensed others' breathe and sweat?
</disgusting>

The oceans are filled with Dinosaur pee!
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
 

Offline Kalidor

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #16 on: February 10, 2016, 04:04:15 am »
Read the comments
From John Houldsworth:

This device was originally in the press a year ago and the claims are still just as outrageous as they were then. This is pure fantasy!...
To condense 0.5 litres an hour requires heat removal at the rate of 340W.
Even optimistically allowing only 10 degC cooling to the dew point for a thermo-cooler COP of 3 still requires 113W of electrical power. This requires a solar panel area of at least 0.75 sq meter or 2 ft by 4ft !!! not the few square inches shown on this press release image.
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
 

Offline Xenoamor

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #17 on: February 11, 2016, 11:44:59 pm »
Perhaps the device can be engaged with the wheels when rolling down hills or something?
Still. I doubt that will do near to anything
 

Offline Stonent

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #18 on: February 23, 2016, 03:09:14 pm »
<disgusting>
Drinking condensed others' breathe and sweat?
</disgusting>



This can be used to distill urine into water.
The larger the government, the smaller the citizen.
 

Offline Kalidor

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #19 on: April 10, 2016, 05:42:51 pm »
Its online since some days
https://igg.me/at/fontus/x/10280792

Already over $180k.  :palm:
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
 

Offline SeanB

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #20 on: April 10, 2016, 07:37:18 pm »
Condensate water in an airconditioner in a city is a blend. Mostly dilute nitric acid, nitrous acid, sulphuric acid, sulphurous acid, carbonic acid and a generous helping of particulate matter. Mostly lead oxide, iron oxide, small rubber particles, carbon nanotubes, buckyballs and graphene sheet pieces. A lot of skin fragments, and on top of all that if you live near the sea a nice dose of salt to go with it all.
 

Offline Gyro

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #21 on: April 10, 2016, 07:55:59 pm »
Nothing a kettle and good teabag won't fix!  ;D
"Victor Meldrew, the Crimson Avenger!"
 

Offline Kalidor

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #22 on: April 10, 2016, 08:30:36 pm »
Nothing a kettle and good teabag won't fix!  ;D

Haha, forget that.
This will do it www.katadyn.com  8)
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
 

Offline Kalidor

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #23 on: April 11, 2016, 01:03:55 am »
some fun math depending on their claim that they can condense 1L water in 150min if humidity is 99% at 46 deg C (picture).

Latent heat of evaporation of water: 2270 kJ/kg

=908 kJ/h = 252.2W + the fan in the Airo model + heat exchange pump
this needs about 2 sq meter solar panel
all at 100% efficiency

« Last Edit: April 11, 2016, 01:08:23 am by Kalidor »
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
 

Offline MarkS

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Re: Self-Filling Water Bottle Converts Humid Air into Drinkable H2O
« Reply #24 on: April 11, 2016, 01:45:53 am »
Condensate water in an airconditioner in a city is a blend. Mostly dilute nitric acid, nitrous acid, sulphuric acid, sulphurous acid, carbonic acid and a generous helping of particulate matter. Mostly lead oxide, iron oxide, small rubber particles, carbon nanotubes, buckyballs and graphene sheet pieces. A lot of skin fragments, and on top of all that if you live near the sea a nice dose of salt to go with it all.

Any sources? I believe you, but I also enjoy gardening and the use of condensate in gardening seems to be a common question. I'd like to be able to quote more than some guy in some electronics forum.
 


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