Wont the keg and piping eventually corrode b/c of the salt water? I think it be hard to build a robust/reliable system because of the constant corrosion you'd have to deal with. Don't you think? It's not like you can use a pump to pump this sea water too. It would ruin your pump... am I wrong?
This is amazing video - thanks. I was just trying to teach my 3rd grade son about the importance of conserving fresh water and the difficulty of creating fresh water from sea water. I had drawn up a picture - and your video brought life to my picture. He understands what is involved. Thanks.
I just spoke with a scientific expert on this subject of including a vacuum in this system, and he claims that using a vacuum will not save any overall energy, as the overall energy requirements are identical with or without using a vacuum. The energy saved in heat generation is identical to the extra energy required to make the vacuum.
Why not use a ( solar powered ? ) large vacuum pump to reduce the air pressure inside of the 5 gallon container, and thus reduce the water boiling point of the 5 gallon container's internal water to a temperature even below the temperature of the outside air ? Would the output from this vacuum pump contain the distilled water ( vapor ) that you are trying to get ?
IDEA: obtain a small oil cooler radiator such as is used on VW engines. about 6x10 inches. Focus your Fresnel on that small area. Then use photovoltaic to run a small 12V pump and pump water to the radiator slowly, so that when the water enters the radiator it turns to steam instantly. Use a check valve so the process go's one way. Then run the steam through your coil to condense the steam. Then you can really throw the heat onto the radiator, maybe to 500plus degrees. I bet that would shred!
Let me understand... your goal is to desalinate water right? Why do 5 gallons at a time? I'd do 1 gallon at a time with some kind of drip feeder... and I'd put the water in a copper coil so that it boils MUCH faster... and much safer!
That would be the right idea. I had several back yard beer guys ask about boiling 5 gallons for their mix. This was to show the challenge of doing that much water.
Your desalination strategy is bad. The boiling point increases as you boil down your batch, while thermodynamic efficiency drops.
Try a more natural approach - a vacuum over the tank will lower the vapor pressure of water, thus yielding more water vapor per heat input. Then, capture the water vapor with a cooler-condenser - one of those nifty Peltier deals could drive that.
Desalination is a messy sport, since the salt tends to crust and clog everything.
- I think it would be better if the condensing coil was always going down so the water doesn't get "stuck" in the middle of the coil.
do you think it would be possible to make a wind powered desalinisator: use a wind mill (like the one used for pumping bore water) to pump salt water to a high tank, let's say 10m high, and use a reverse osmosis filter at ground level to desalinate water
hey man have you done any tests/estimates on how long it would take to get through the whole 5 gallons.. it looks like you could do that in a day or maybe 2.. from the video.
thats quite a lot of clean water from a small space if you had this thing running day after day.
Yes, but steaming smaller volumes is way more efficient. I am working on a concept to steam 20 gallons a day using three methods combined. This was just to see if 5 gallons was possible all at one time.
I was going to say that. You lose way to much heat trying to boil it all at once. Boiling smaller amounts, you could probably distill the whole thing with 1 fresnel lens.
"Purified water lacks minerals and ions, such as calcium, which are normally found in potable (drinking) water, and which have important biological functions such as in nervous system homeostasis. Some percentage of our daily consumption of these minerals and ions come from our drinking water."
So maybe adding some minerals is a good idea, when using it as drinking water. Or compensating by means of some other food source ?
We usually buy Distilled water as it is a great way to leach sodium after eating at a restaurant. There are trace minerals from health food stores that come in a concentrate. 1 Dropper does 8oz. Most minerals can be obtained through a proper diet of veggies but distilled water does suck them out. In a survivalist situation. You could Boil the crap out of one gallon and mix it strained with gallons of distilled water. Osmosis is easily offset is there are even tiny amounts of trace minerals.
"Distillation will remove from water almost anything, even heavy metals, poisons, bacteria and viruses. However, it does not remove substances that have boiling points at a lower temperature than water. Some of these substances are oils, petroleum, alcohol and similar substances"
"So how to get rid of oil particles, if any ?" That's easy!! Technologically, but not labor wise. Observe: you raise the tamp of water to about 180F to no more than 190F, (stirring can help the process) most "spirits" will boil off before water. That's how you make Tequila Compadre!! or whiskey pardner! let the those fumes vent to the air. when you think you got them all out, then you go for the gusto and raise temp as high as you want (above 212F of course) for water destillation. Q-vo!
I got fried. Never worked that long on one project. Glad I had the grungy clothes on. We have had no clouds the past 4 days. It is making the grass brown quicker than I have every seen before. Great for Fresnel projects, away from the dry grass of course.
FRESNEL! FRES-NEL!
WatchingMonkey 2 months ago
What do you do for work? I love what you are doing, but can't think how it can all be done whilst still working an 8 hour job.
bnewton81 10 months ago
I really applaud you for this huge project; really shows how much incredible effort it takes, wow! You must have been exhausted by the end
Scrap5000 11 months ago
Wont the keg and piping eventually corrode b/c of the salt water? I think it be hard to build a robust/reliable system because of the constant corrosion you'd have to deal with. Don't you think? It's not like you can use a pump to pump this sea water too. It would ruin your pump... am I wrong?
ebutuou123 1 year ago
This is amazing video - thanks. I was just trying to teach my 3rd grade son about the importance of conserving fresh water and the difficulty of creating fresh water from sea water. I had drawn up a picture - and your video brought life to my picture. He understands what is involved. Thanks.
rrajkamal 1 year ago
I just spoke with a scientific expert on this subject of including a vacuum in this system, and he claims that using a vacuum will not save any overall energy, as the overall energy requirements are identical with or without using a vacuum. The energy saved in heat generation is identical to the extra energy required to make the vacuum.
trader0108 1 year ago
Why not use a ( solar powered ? ) large vacuum pump to reduce the air pressure inside of the 5 gallon container, and thus reduce the water boiling point of the 5 gallon container's internal water to a temperature even below the temperature of the outside air ? Would the output from this vacuum pump contain the distilled water ( vapor ) that you are trying to get ?
trader0108 1 year ago
looks like its time to make some TEA
wbsnakes 1 year ago
I have some great ideas about this project and what would make this much easier!
glennsbeach 1 year ago
I have spf 70 :)
also need some sun glasses!!!!
skin cancer sucks btw : /
social3ngin33rin 2 years ago
dood please use eye protection
ArthurSantos123 2 years ago
I like your videos! I was just thinking, try having the hole kag in a vacuum? that woud speed it up!? Thank you!
valllhalla 2 years ago
porfavor traduscan al español , gracias.
termimeepit 2 years ago
IDEA: obtain a small oil cooler radiator such as is used on VW engines. about 6x10 inches. Focus your Fresnel on that small area. Then use photovoltaic to run a small 12V pump and pump water to the radiator slowly, so that when the water enters the radiator it turns to steam instantly. Use a check valve so the process go's one way. Then run the steam through your coil to condense the steam. Then you can really throw the heat onto the radiator, maybe to 500plus degrees. I bet that would shred!
pvampire 2 years ago
Let me understand... your goal is to desalinate water right? Why do 5 gallons at a time? I'd do 1 gallon at a time with some kind of drip feeder... and I'd put the water in a copper coil so that it boils MUCH faster... and much safer!
HiddenBuzzCom 2 years ago 3
That would be the right idea. I had several back yard beer guys ask about boiling 5 gallons for their mix. This was to show the challenge of doing that much water.
GREENPOWERSCIENCE 2 years ago 2
What about using an arched array of fresnel lenses over a series of smaller black painted pipes?
HiFiman4u 2 years ago
Your desalination strategy is bad. The boiling point increases as you boil down your batch, while thermodynamic efficiency drops.
Try a more natural approach - a vacuum over the tank will lower the vapor pressure of water, thus yielding more water vapor per heat input. Then, capture the water vapor with a cooler-condenser - one of those nifty Peltier deals could drive that.
Desalination is a messy sport, since the salt tends to crust and clog everything.
platficker 2 years ago
great video!!
the efficiency problems I see:
- there is no insulation,
- I think it would be better if the condensing coil was always going down so the water doesn't get "stuck" in the middle of the coil.
do you think it would be possible to make a wind powered desalinisator: use a wind mill (like the one used for pumping bore water) to pump salt water to a high tank, let's say 10m high, and use a reverse osmosis filter at ground level to desalinate water
enicao 2 years ago
Great demo! Why are we burning oil for desalination plants?
slazar11 3 years ago 5
It looks like you have a device that could be used to separate beer from all its impurities.
rykoslavi 3 years ago
hey man have you done any tests/estimates on how long it would take to get through the whole 5 gallons.. it looks like you could do that in a day or maybe 2.. from the video.
thats quite a lot of clean water from a small space if you had this thing running day after day.
2Shye 3 years ago
Yes, but steaming smaller volumes is way more efficient. I am working on a concept to steam 20 gallons a day using three methods combined. This was just to see if 5 gallons was possible all at one time.
GREENPOWERSCIENCE 3 years ago
if you take the sweedish sauna idea.. it would probably be one of the most efficient ways to generate steam..
just focus your beams onto a solid piece of metal or a box of rocks and then pour water onto them.. the trick would then be to collect the steam.
2Shye 3 years ago
I was going to say that. You lose way to much heat trying to boil it all at once. Boiling smaller amounts, you could probably distill the whole thing with 1 fresnel lens.
Sepero1 3 years ago
neat stuff lots of energy better spf 50 on.
bg0821 3 years ago
Yes, I think I will wear a ski mask and glasses next time.
GREENPOWERSCIENCE 3 years ago
how long did it actually take?
inetprez 3 years ago
About almost 2 hours to boil the water. And 6 hours for the whole video.
GREENPOWERSCIENCE 3 years ago
yeah, you're making Improvements (from part1)
good Job Dan
Mapanatl 3 years ago
Most excellent. You think the distilled water is clean enough to drink, that other unwanted stuff is filtered out, too ?
Well, you did drink it, but anyway...
JavaLessons 3 years ago
Hi,
can you repost your last message about oil, I clicked remove vs reply. Youtube has them right on top of each other. Sorry about that.
GREENPOWERSCIENCE 3 years ago
And this :
"Purified water lacks minerals and ions, such as calcium, which are normally found in potable (drinking) water, and which have important biological functions such as in nervous system homeostasis. Some percentage of our daily consumption of these minerals and ions come from our drinking water."
So maybe adding some minerals is a good idea, when using it as drinking water. Or compensating by means of some other food source ?
JavaLessons 3 years ago
We usually buy Distilled water as it is a great way to leach sodium after eating at a restaurant. There are trace minerals from health food stores that come in a concentrate. 1 Dropper does 8oz. Most minerals can be obtained through a proper diet of veggies but distilled water does suck them out. In a survivalist situation. You could Boil the crap out of one gallon and mix it strained with gallons of distilled water. Osmosis is easily offset is there are even tiny amounts of trace minerals.
GREENPOWERSCIENCE 3 years ago
Found some answers :
"Distillation will remove from water almost anything, even heavy metals, poisons, bacteria and viruses. However, it does not remove substances that have boiling points at a lower temperature than water. Some of these substances are oils, petroleum, alcohol and similar substances"
So how to get rid of oil particles, if any ?
JavaLessons 3 years ago
Mapanatl 3 years ago
2 spots, how
BILLNYYE 3 years ago
Your real-life videos are fun to watch.
I was thinking you would get a good tan hanging around the solar reflectors, and sure enough...haha.
A great personal sacrifice to the sun gods for a worthy project!
MrfixitRick 3 years ago
:-) Hi Rick,
I got fried. Never worked that long on one project. Glad I had the grungy clothes on. We have had no clouds the past 4 days. It is making the grass brown quicker than I have every seen before. Great for Fresnel projects, away from the dry grass of course.
GREENPOWERSCIENCE 3 years ago