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We are going to review a somewhat curious topic, sometimes we can see that ice is formed in the aircraft window, But why is it?
Beyond knowing why this type of phenomenon is generated, which is surely very obvious to many of you, let's know more details about the dynamics of the flight.
Perhaps unnoticed by some, but very noticeable to those who we take photos at all times of the flight, makes us wonder why it is generated and in a I fly a few weeks I noticed it back, so I found it interesting to share it with you.
ice on the windows
First you have to know what this ice has a lot to do with the famous hole or hole that we see in the windows of the airplanes and that we have already reviewed previously here.
Basically what is happening is not unlike what we see in a glass of ice water in the kitchen.. The warmer side of glass (the outside) cools due to the cold inside and transfers that temperature to the surrounding air.
That surrounding air cools enough to cause the moisture it contained to condense and stick to the glass.. If the glass was cold enough, would freeze that condensation (we see it in very cold beers). The airplane window is so cold that the condensation freezes.
Small vent hole in inner window glass allows cabin air pressure to pass through to outer window.
To the extent that aire passes through the small hole, hits the outside polycarbonate window which is very cold where it condenses and freezes near the hole.
Since the planes fly high, are exposed to low temperatures – 40° or even less, generating this effect that really does not have any risk for air safety, more than prevent you from seeing beautiful landscapes.
And what about that particular shape of the ice that forms?
«The circular pattern should be a function of the temperature of the window surface, cabin air humidity and flow through the bleed hole». Bret Jensen, a Boeing aerospace engineer, comments www.slate.com.
A curiosity more than aviation, but that without a doubt allows us to know and expand even more our aeronautical culture.
* With data from Science and Quora.
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