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Superheated steam was widely used in main line steam locomotives. Saturated steam has three main disadvantages in a steam engine: it contains small droplets of water which have to be periodically drained from the cylinders; being precisely at the boiling point of water for the boiler pressure in use, it inevitably condenses to some extent in the steam pipes and cylinders outside the boiler ...
For further trials with superheated steam on the Ilsenburg – Wernigerode railway, there was a trials organisation near Wernigerode station. It was here that Schmidt founded the Schmidt Superheated Steam Company (Schmidtsche Heissdampfgesellschaft). By using superheated steam the thermal efficiency of a steam engine could be raised by as much ...
Steam, especially dry (highly superheated) steam, may be used for antimicrobial cleaning even to the levels of sterilization. Steam is a non-toxic antimicrobial agent. [ 11 ] [ 12 ]
A superheater is a device used to convert saturated steam or wet steam into superheated steam or dry steam. Superheated steam is used in steam turbines for electricity generation, in some steam engines, and in processes such as steam reforming. There are three types of superheaters: radiant, convection, and separately fired.
The steam thus produced is at the same temperature as the water below it. This is called saturated steam. If the steam is taken away from the boiler, in a pipe, and then further heat is applied to that steam, the steam can rise above the temperature of the water in the boiler. This heated-above-the-boiler-temperature steam is called "superheated".
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This raised high-pressure steam at 900 psi (6.21 MPa) which was taken to power the cylinders and also recirculate pure water. The third steam raising unit was a relatively conventional locomotive fire tube boiler operating at 250 psi (1.72 MPa) heated by combustion gases from the coal fire. [ 3 ]
In that way, he is known as one of the key pioneers of locomotive design because of his achievements concerning the use of superheated steam; his image is tarnished, however, by a conservatism that was proven wrong time and again contemporarily (e.g. by the Bavarian S 3/6, and thereafter André Chapelon designed highly successful modern ...