Fog Chiller V2
Last year I had mediocre sucess with my fog chiller. It didn't work our
well for many reasons. One, I didn't pack it with ice, I put ice bags
in it. Two, I used small diameter pipe to deliver the fog. Three, the
fog didn't have any where to expand into and because of that a lot of
fog didn't turn into fog it just condensed really fast and became a
sticky mess. My new design fixes many problems and aims to put out
colder fog.
FCV2
As you can see from
my crude drawing this chiller is built with the same kind of trash can
as the orginal. If you have the orginal one and it doesn't work that
great make sure to come back to this page as I will update when I
actually build it.
Theory of Operation:
As you can see above the fog enters the horizontal pipe on the right. The Y connection allows fresh air to mix with the ejected fog. This allows the fog to become a little thinner and less prone to condense right away. After the pipe brings it in you can see it brings it to the first chamber which allows the fog to mix with the fresh air and become more foggish (excuse my wording :p). Since the fog is hot it naturally rises. This chiller is based around convection. When the fog rises through the ice it becomes colder and just makes it over the top to go through more ice which accelerates through to the bottom. In this system a fan should not be needed. If you look in the drawing you can see black lines. The lines represent some kind of mesh to hold back the ice from the exit and enterance chambers. The piece in the middle is just a piece of wood to seperate both sides of the chiller. In this design it is crucial to keep both sides seperate. I would suggest measunring the angles so you make a piece that fits in the middle perfectly and then seal the sides with silicone sealant. When you put in the ice make sure to take it out of the bag. In this desgin the more ice surface area the better it works. It also might not be a bad idea to add a couple of drain hole in the bottom of the can. This is only a theory now, but in a couple of weeks when I build it I will tell you exactally how well it works.
Theory of Operation:
As you can see above the fog enters the horizontal pipe on the right. The Y connection allows fresh air to mix with the ejected fog. This allows the fog to become a little thinner and less prone to condense right away. After the pipe brings it in you can see it brings it to the first chamber which allows the fog to mix with the fresh air and become more foggish (excuse my wording :p). Since the fog is hot it naturally rises. This chiller is based around convection. When the fog rises through the ice it becomes colder and just makes it over the top to go through more ice which accelerates through to the bottom. In this system a fan should not be needed. If you look in the drawing you can see black lines. The lines represent some kind of mesh to hold back the ice from the exit and enterance chambers. The piece in the middle is just a piece of wood to seperate both sides of the chiller. In this design it is crucial to keep both sides seperate. I would suggest measunring the angles so you make a piece that fits in the middle perfectly and then seal the sides with silicone sealant. When you put in the ice make sure to take it out of the bag. In this desgin the more ice surface area the better it works. It also might not be a bad idea to add a couple of drain hole in the bottom of the can. This is only a theory now, but in a couple of weeks when I build it I will tell you exactally how well it works.