ELI5: Explain Like I'm 5

Liquid air cycle engine

Okay kiddo, you know how cars need gasoline to run? Well, there's a new type of engine called a liquid air cycle engine that doesn't use gasoline. Instead, it uses something called "liquid air" to make it go.

So, what is liquid air? When you take normal air and cool it down really, REALLY cold, it turns into a liquid. Imagine sticking your juice box in the freezer overnight and it becomes solid. Well, it's like that, but with air. This liquid air is super cold and can be used to help make electricity to run the engine.

Now, let's talk about how the liquid air cycle engine works. First, the engine takes in air from the outside and cools it down until it becomes liquid air. This process is called "liquefaction". Then, the liquid air is stored in a special tank until it is needed to power the engine.

To start the engine, the liquid air is heated up and turns back into a gas. This process is called "re-gasification". The gas then expands rapidly and pushes a piston, which turns the wheels of the car. This gas is also used to make electricity to power things like lights and the radio.

One cool thing about this type of engine is that the liquid air can be made during times when there's extra energy, like when it's sunny or windy, and stored for later use. It's also very clean, since it doesn't produce any pollution like gasoline engines do.

So, there you have it, a liquid air cycle engine is an engine that uses super cold liquid air to create energy to make electricity, which then powers the engine and makes the car go. Cool, huh?
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