How to distinguish between saturated steam and superheated steam?

Superheated steam seems to contain little water. Saturated steam contains water, and to the maximum extent possible – it can no longer hold any more water.

Under certain pressure, when water is heated to boiling point, it begins to vaporize and gradually turns into steam; at this point, the temperature of the steam equals the saturation temperature. Steam in this state is called saturated steam. If saturated steam is continued to be heated, its temperature will rise and exceed the saturation temperature at that pressure. Steam that exceeds the saturation temperature is called superheated steam. There is a one-to-one relationship between saturated steam temperature and pressure, but such a relationship does not exist for superheated steam.

http://bbs.hcbbs.com/thread-492973-1-1.html Please click on the above link. The information below is taken from that link: When all the water in wet steam vaporizes, it becomes saturated steam; at this point, the temperature of the steam remains at its boiling point. If saturated steam is further heated, raising its temperature above the boiling point, the steam obtained at this point is called superheated steam. Superheated steam has its own areas of application, such as in the turbines of power generation units, where it is directed through nozzles to the motor to drive it. However, superheated steam is rarely used in the heat transfer processes of industrial manufacturing, as it must first be cooled to its saturation temperature before it can condense and release its latent heat of vaporization. Obviously, the amount of heat released when superheated steam is cooled to saturation temperature is much smaller compared to that of saturated steam, which in turn reduces the performance of the equipment used in these manufacturing processes.

When a liquid evaporates in a confined space, its molecules move across the liquid surface into the space above, turning into vapor molecules. Due to the chaotic thermal motion of steam molecules, they collide with each other as well as with the container walls and the liquid surface. When colliding with the liquid surface, some of these molecules are attracted by the liquid molecules and return to the liquid, becoming part of it again. At the start of evaporation, more molecules enter the space than those that return to the liquid. As evaporation continues, the density of vapor molecules in that space increases, which in turn leads to an increase in the number of molecules that return to the liquid. When the number of molecules entering the space per unit time is equal to the number of molecules returning to the liquid, evaporation and condensation are in dynamic equilibrium. At this point, although evaporation and condensation continue to occur, the density of vapor molecules in the space no longer increases; this state is known as a saturated state. A liquid in a saturated state is called a saturated liquid, and its corresponding vapor is saturated vapor; initially, it is wet saturated vapor, and it becomes dry saturated vapor only after all the moisture in the vapor has evaporated. During the process in which steam moves from unsaturated to wet saturated to dry saturated, its temperature does not increase; however, when heating continues after reaching dry saturation, the temperature rises, and the steam becomes superheated.

I’m studying* again; I’ve almost forgotten everything

Everyone’s responses have been very detailed; thank you for your effort

It’s great that someone can ask this question; one encounters many such situations in applications.