Thermal hydraulics is the study of hydraulic flow in thermal systems. A common example is steam generation in power plants and the associated energy transfer to mechanical motion and the change of states of the water while undergoing this process. Hydraulics is a branch of science and engineering concerned with the use of liquids to perform mechanical tasks. ... This article is about the atmospheric phenomenon. ... In physical chemistry and in engineering, steam refers to vaporized water. ... A power station (also power plant) is a facility for the generation of electric power. ... The word mechanical can mean one of several things: A device or principle described as mechanical relates to a mechanism or machine, or the realm of Newtonian mechanics. ... In physics, the term state is used in several related senses, each of which expresses something about the way a physical system is. ... A falling water droplet Water (from the Anglo-Saxon and Low German wæter) is a colourless, tasteless, and odourless substance that is essential to all known forms of life and is the most universal solvent. ...