During the refrigeration cycle, warm gases are made even hotter due to pressurization expansion friction evaporation

Pressurization

Explanation:

Pressurizing is the technique used to inject air under pressure in a specific environment in order not to allow outside air to enter the pressurized environment. In this way, during the cooling cycle, the hot gases become even hotter. This is a mandatory procedure today for building stairs to ensure a safe environment in the event of a fire.

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