Heat transfer enhancement is a way to make heat travel faster and easier. It is like putting something on a path that helps things travel. For example, if you have a toy car on a track, it might travel faster and easier if you put something like oil or grease on the track. Heat transfer enhancement works in a similar way, except it is for heat instead of a toy car. When you put something like a special coating, tiny wires, or a special material on something like a pipe, the heat can move much faster and easier through the pipe. This makes the heat transfer faster and the pipe can stay cooler.