Aluminum Snake vs Cans

[MrKaktus]

Is there any information if Aluminium ventilation tube (80mm or 3") in a snake form can compete with pop can direct tubes model?

[russ]

Higher surface area is no doubt better.

[MrKaktus]

Higher surface area is no doubt better.

But if the surface area in both are same? I mean does the air move too fast to heat enough in straight tubes? And If the snake is very well insulated...

[russ]

But if the surface area in both are same? I mean does the air move too fast to heat enough in straight tubes? And If the snake is very well insulated...

1) Depends on how much air flow you force through - you really just want the air slowly drifting through

2) Insulated?

[MrKaktus]

1) Depends on how much air flow you force through - you really just want the air slowly drifting through

2) Insulated?

Then I mean that the Can projects do not snake to make slower drifting?

2) Using double or triple glazing & mineral wool. Less heat loss.

[green]

Is there any information if Aluminium ventilation tube (80mm or 3") in a snake form can compete with pop can direct tubes model?

You could always just put the soda cans inside the aluminum tubing to slow the flow of air and add some turbulence and mass. You don't even need to glue them together.

Green

[russ]

Then I mean that the Can projects do not snake to make slower drifting?

2) Using double or triple glazing & mineral wool. Less heat loss.

1) Cans or flex aluminum hose would be similar in that regard. You just want turbulent flow through the unit - bends would provide that. Cans often have he ends opened in a manner to impart turbulence to the air flow.

2) Insulate the sides and back of the box - better to use a single layer of glass on the front side. Double pane glass has the common name of "insulated" windows. On the sunny side just worry about solar gain.

[MrKaktus]

You could always just put the soda cans inside the aluminum tubing to slow the flow of air and add some turbulence and mass. You don't even need to glue them together.

Green

Ok! well these tubes have "ribbed" enough perhaps? To slow air.

http://www.putkikauppa.com/epages/Kaupat.sf/fi_FI/?ObjectPath=/Shops/Putkikauppa/Products/8102302

One & two glass difference is 5.7 vs 2.8 W/(m2K)

[russ]

Ok! well these tubes have "ribbed" enough perhaps? To slow air.

http://www.putkikauppa.com/epages/Kaupat.sf/fi_FI/?ObjectPath=/Shops/Putkikauppa/Products/8102302

One & two glass difference is 5.7 vs 2.8 W/(m2K)

The tubes look fine to me.

I don't understand 5.7 vs 2.8 W/(m2K)

[MrKaktus]

One glass 5.7 W / (m2K) m2=square meter K= kelvin degrees. How much heat moves through.
Two glass 2.8 W / (m2K)

I

[russ]

One glass 5.7 W / (m2K) m2=square meter K= kelvin degrees. How much heat moves through.
Two glass 2.8 W / (m2K)

I

Many other factors such as type of glass, gas fill for the insulating gap - commercial units such as water panels all use single pane low iron glass - that would be the best here as well. Those guys have done a lot of study on the topic i expect.