Hingeõhuni

Hingeõhuni is a term that refers to the small, often imperceptible movement of air that occurs when a door is opened or closed. This phenomenon is a result of the pressure difference created between the two spaces separated by the door. When a door opens, air from the higher-pressure area flows into the lower-pressure area, creating a brief rush of air. Conversely, when a door closes, air is displaced, causing a similar, though often less noticeable, movement.

The magnitude of hingeõhuni is influenced by several factors. The size of the opening created by the door plays a significant role; a larger gap allows for greater air displacement. The speed at which the door is opened or closed also affects the intensity of the air movement. Furthermore, differences in temperature and humidity between the two environments can contribute to pressure variations, thereby influencing the hingeõhuni. In enclosed spaces with strong ventilation systems, the air pressure differential can be more pronounced, leading to a more noticeable hingeõhuni. Understanding this simple physical principle helps explain why drafts might be felt when passing through doorways, particularly in buildings with distinct internal and external atmospheric conditions.