let's set fire with steam
I talked about air heating where fire is not hot, but when water changes state from liquid to gas, it absorbs a lot of heat. Then, what happens to the temperature when the steam that has changed state is further heated?
Experiment 1: Ignite with steam ①
you need : Copper annealed tubes, heating appliances, matches, flasks, rubber stoppers
The photo above shows water boiled in a flask passed through a copper tube and further heated. It comes out of the copper tube in the form of clear water vapor. The temperature at this time is about 300 ° C. The match burns when you bring it closer.
Experiment 1: Ignite with steam ②
you need : needles, aluminum cans, matches
It's easier when you have a needle. Insert the injection needle into the lid of the aluminum can and fix it. Put a small amount of water in an aluminum can and heat it. Alcohol lamps are sufficient. Heat the needle with a few candles. Ignite the match with steam.
The superheated steam obtained in this way is used for cleaning and cooking. It seems that superheated steam can be set to about 1200 ° C. With a superheated steam microwave oven, the surface can be crispy and the inside can be moisturized, and oil can be removed, expanding the range of dishes.