önkisülési

Önkisülési is a Hungarian term that translates to "self-extinguishing" or "spontaneous combustion." It refers to the phenomenon where a substance ignites and burns without an external ignition source, such as a spark or flame. This process typically occurs when a material oxidizes rapidly, generating heat. If the rate of heat generation exceeds the rate of heat dissipation, the material's temperature can rise to its ignition point, leading to combustion.

Several factors can contribute to önkisülési. These include the presence of combustible materials, an oxidizing agent (often oxygen from the air), and sufficient moisture. Certain materials are more prone to this phenomenon than others. For example, oily rags, compost piles, and some types of hay are known to self-combust under specific conditions. The packing density of the material, ambient temperature, and the presence of microbial activity (in the case of organic materials) can also play a significant role.

Preventive measures against önkisülési often involve proper storage and handling of susceptible materials. This can include storing oily rags in sealed metal containers, ensuring adequate ventilation in compost piles, and drying hay thoroughly before storage. Understanding the conditions that lead to self-combustion is crucial for preventing fires in various industrial, agricultural, and domestic settings.