The water after charcoal treatment could then be used to generate steam in power plants definitely killing germs. (dotearth.blogs.nytimes.com)
The heated water generates steam to reduce drying and keep food moist. (fieryfoodscentral.com)
Instead of using wires, he used pipes to exploit the temperature difference between the cold deep ocean and the warm surface waters to generate steam energy. (newscientist.com)