Encapsulation doesn't have to suck

[inetdog]

I suppose that's what the professional encapsulating machines do in a nutshell?

Pretty much, yes.

[Sunking]

I suppose that's what the professional encapsulating machines do in a nutshell?

Yep plus they purge the chamber of all outside air and replace it with Nitrogen which has 0% moisture and most important no nasty Oxygen.

[inetdog]

.. and most important no nasty Oxygen.

I am personally very fond of Oxygen.
In its place....

[green]

Like these guys say, there is no way you can duplicate what the manufacturers are doing. But on the other hand the manufacturers can't duplicate your methods either.

Keep experimenting untill you find what works for you. For me the fun is in the experimenting.

Green

[Sunking]

I am personally very fond of Oxygen.
In its place....

Yeah so am I like any air breathing organic life form. But oxygen is extremely poisonous or destructive to just about everything else. Water even more so.

[Naptown]

But the vast majority of what you breathe is nitrogen

[Sunking]

But the vast majority of what you breathe is nitrogen

So true but Nitrogen is a inert gas.

[fingolfin]

Okay so I get sucking out the air to remove the airbubbles and moisture while getting the atmosphere to apply its 14.6psi, but why the extra pressure on the outside?
I've been mulling this over all day and can't make heads or tails of it...
Additionally does any of the EVA encapsulant (I'm just assuming film encapsulant for now) ever get squeezed out of the edges?

[Sunking]

Doesn't sound like you are grasping the physics of Fluid Mechanics and the sub discipline of Fluid Dynamics. If you were you would clearly understand you can lift a car with nothing more than the air in your lungs as the power source.

[fingolfin]

Doesn't sound like you are grasping the physics of Fluid Mechanics and the sub discipline of Fluid Dynamics. If you were you would clearly understand you can lift a car with nothing more than the air in your lungs as the power source.

No no I get fluid mechanics. If you have a thin pipe and apply a little pressure to a piston while moving it a very large amount, you can get a larger piston in a larger pipe to move a much shorter amount with much greater force.

My question is why one needs to apply 60psi to the cells being encapsulated. I know it's done in the industry, and that they know what they're doing. I'm just curious why.
Because it seems to me like if you have all of the air out of the panel and you're encapsulating, and there's enough pressure to generate a good bond between the EVA, glass, and cells, there might not be a need for 60psi.
Rephrased, as long as you have a good bond without airbubbles between your cells, glass, backing, and encapsulant, what's the need for extra pressure?

Again, just pondering.