Bakdämpning

Bakdämpning, also known as backdraft, is a phenomenon that occurs in enclosed spaces where a fuel-air mixture is present, such as in a chimney, flue, or other ventilation system. It is a type of explosion that can occur when the oxygen supply to a fire is suddenly increased, causing the fire to rapidly consume the available fuel. This can happen when a chimney or flue is blocked or when a door or window is opened, allowing fresh air to enter the space.

The process of bakdämpning begins when the fire in the enclosed space is burning with limited oxygen, resulting in the production of carbon monoxide and other toxic gases. When the oxygen supply is suddenly increased, the fire can quickly consume the available fuel, creating a sudden increase in pressure and temperature. This can result in a powerful explosion, which can cause significant damage to the structure and potentially injure or kill anyone in the vicinity.

Bakdämpning is a serious hazard in enclosed spaces where fuel is present, such as in industrial settings, mines, and buildings with poor ventilation. It is important to ensure that ventilation systems are properly maintained and that any potential sources of fuel are properly managed to prevent the occurrence of bakdämpning. In the event of a bakdämpning, it is important to evacuate the area immediately and contact emergency services.