Search results
Results From The WOW.Com Content Network
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 ...
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.
In general, the steam economy is roughly proportional to the specific volumes of saturated and superheated steam at the pressure of generation. [Thus] the operating range of any given [steam] engine is increased; this is of especial benefit to tank engines and to all engines working in areas where fuel is expensive or water is scarce.
A superheated boiler on a steam locomotive. L.D. Porta gives the following equation determining the efficiency of a steam locomotive, applicable to steam engines of all kinds: power (kW) = steam Production (kg h −1)/Specific steam consumption (kg/kW h). A greater quantity of steam can be generated from a given quantity of water by ...
The South African Railways Class 10A 4-6-2 of 1910 was a steam locomotive from the pre-Union era in Transvaal.. In 1910, the Central South African Railways placed ten Class 10-2 4-6-2 Pacific type steam locomotives in service, of which five were built with and five without superheaters.
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] The engine was technically an " ultra-high pressure, semi-compound steam locomotive ".
The South African Railways Class MG 2-6-6-2 of 1911 was a steam locomotive from the pre-Union era in Transvaal.. In 1911, the Central South African Railways placed an experimental Mallet articulated compound steam locomotive with a 2-6-6-2 wheel arrangement in service.
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed by a connecting rod and crank into rotational force for work.