Principles of chemical engineering in daily life – The principle behind a burning oil pan
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One day, someone was using an induction cooker to cook. The oil had been poured into the pan, and just as they were about to start cooking, a message came in on WeChat. While responding to that message, the oil in the pan caught fire. Confused, they searched online and learned that three elements are required for a fire to start – but where was the source of ignition? Please, master, try to explain the principle from the perspective of chemical engineering principles
When the ignition point of the oil is exceeded or reached, and the oxygen concentration in the air reaches a certain level, it vaporizes upon contact with water, thereby causing the oil in the pot to burn.
The auto-ignition point refers to the ignition source; oxygen in the air, along with substances that are flammable in themselves, play a role in this process
The hot surface of the pot belongs to an open-flame heat source