. The conquest of nature. underhigh pressure became evident to engineers everywhere,and its conquest was finally complete. The essential feature of super-heated steam is that itcontains, as the name implies, an excess of heat beyondthe quantity necessary to produce mere vaporiza-tion, and that the amount of water represented in thisvapor is not the maximum possible under given con-ditions. In other words, the vapor is not saturated. Ithas been already explained that the amount of vaporthat can be taken up in a given space imder a givenpressure varies with the temperature of the nor
. The conquest of nature. underhigh pressure became evident to engineers everywhere,and its conquest was finally complete. The essential feature of super-heated steam is that itcontains, as the name implies, an excess of heat beyondthe quantity necessary to produce mere vaporiza-tion, and that the amount of water represented in thisvapor is not the maximum possible under given con-ditions. In other words, the vapor is not saturated. Ithas been already explained that the amount of vaporthat can be taken up in a given space imder a givenpressure varies with the temperature of the normal conditions, when a closed space existsabove a liquid, evaporation occurs from the surface ofthe liquid until the space is saturated, and no furtherevaporation can occur so long as the temperature andpressure are unchanged. If now the same space is heatedto a higher degree, more vapor will be taken up untilagain the point of saturation is attained. But, obviously,if the space were disconnected with the liquid, and [4].
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