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Old 18-04-2016, 19:24   #16
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Re: Aero the water bottle that pulls moisture out of the air

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the article about the bicycle bottle didn't mention any energy source at all. it sounded like it was zero human produced energy to give you a half liter of water in an hour.
It uses solar cells and a Peltier cooler to condense water. I've seen a diagram of it before. If you look at the photo in the link you'll see it has solar cells on each side. Small ones at that.. When riding the bike the legs will shade the solar cells.

I suspect the 1/2 liter/hr may be a bit of marketing hype. Probably more like 1-2 oz per hour in high humidity areas, as most of the time one side's solar cell or both would be shaded.
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Old 18-04-2016, 19:29   #17
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Re: Aero the water bottle that pulls moisture out of the air

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Originally Posted by sailorchic34 View Post
It uses solar cells and a Peltier cooler to condense water. I've seen a diagram of it before. If you look at the photo in the link you'll see it has solar cells on each side. Small ones at that.. When riding the bike the legs will shade the solar cells.

I suspect the 1/2 liter/hr may be a bit of marketing hype. Probably more like 1-2 oz per hour in high humidity areas, as most of the time one side's solar cell or both would be shaded.
so, it's like a high tech version of one of those condensation water traps a lot of people keep in their abandon ship bag.

i should think, if it's solar, it wouldn't be too hard to design a better one for a sailboat. of course you better hope for sunshiny weather.
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Old 18-04-2016, 19:43   #18
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Re: Aero the water bottle that pulls moisture out of the air

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Originally Posted by first wind View Post
so, it's like a high tech version of one of those condensation water traps a lot of people keep in their abandon ship bag.

i should think, if it's solar, it wouldn't be too hard to design a better one for a sailboat. of course you better hope for sunshiny weather.
I have one already that's solar powered called a katadyn power survivor 35E also has a manual mode. Lol
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Old 18-04-2016, 19:44   #19
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Re: Aero the water bottle that pulls moisture out of the air

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Originally Posted by first wind View Post
so, it's like a high tech version of one of those condensation water traps a lot of people keep in their abandon ship bag.

i should think, if it's solar, it wouldn't be too hard to design a better one for a sailboat. of course you better hope for sunshiny weather.
And dew point within 36-38 degrees F of dry bulb temp. Otherwise All you'll get is a whole lotta nothing. So it would work in cooler high humidity locations, not so much in death valley.
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Old 18-04-2016, 19:47   #20
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Re: Aero the water bottle that pulls moisture out of the air

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And dew point within 36-38 degrees F of dry bulb temp. Otherwise All you'll get is a whole lotta nothing. So it would work in cooler high humidity locations, not so much in death valley.
which might be ok as i don't think a lot of people sail in death valley
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Old 08-05-2016, 22:14   #21
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Re: Aero the water bottle that pulls moisture out of the air

Well presented scientific debunking of the Fontus (and other solar powered water makers). As sailorchic pointed out, takes a lot of energy to make water with a Peltier device. The amounts they claim to make (for the energy input) seem to be overstated.

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