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Environmental design is an emerging topic in railroad technology. From the 1980s to 2009, fuel efficiency in diesel locomotives in the USA has increased 85%, [1] allowing these trains to go farther and move more freight while using less fuel. New low-impact electric and hybrid trains reduce overall carbon emissions.
Newcomen's atmospheric steam engine. The first practical mechanical steam engine was introduced by Thomas Newcomen in 1712. Newcomen apparently conceived his machine independently of Savery, but as the latter had taken out a wide-ranging patent, Newcomen and his associates were obliged to come to an arrangement with him, marketing the engine until 1733 under a joint patent. [2]
Steam locomotives constructed in the 21st century fall into two broad categories: those that use advanced steam technology to be commercially competitive with diesels; and those built to more traditional designs for hauling tourist trains. Even locomotives in the second case likely use some modern methods and materials.
The South Carolina Canal and Rail Road Company was the first to use steam locomotives regularly beginning with the Best Friend of Charleston, the first American-built locomotive intended for revenue service, in December 1830. The B&O started developing steam locomotives in 1829 with Peter Cooper's Tom Thumb. [32]
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. [1]: 80 It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times.
The first steam locomotive in South Korea (Korea at the time) was the Moga (Mogul) 2-6-0, which first ran on 9 September 1899 on the Gyeong-In Line. Other South Korean steam locomotive classes include the Sata, Pureo, Ame, Sig, Mika (USRA Heavy Mikado), Pasi (USRA Light Pacific), Hyeogi (Narrow gauge), Class 901, Mateo, Sori and Tou. Used until ...
Tom Thumb was the first American-built steam locomotive to operate on a common-carrier railroad.It was designed and constructed by Peter Cooper in 1829 to convince owners of the newly formed Baltimore and Ohio Railroad (B&O) (now CSX) to use steam engines; it was not intended to enter revenue service.
A steam locomotive operating at 350 psi (2,400 kPa) would have a temperature of about 220 °C (400 °F), and a specific enthalpy of 960 kJ/kg (440 kJ/lb). [6] Since standard pressure saturated water has a specific enthalpy of just 420 kJ/kg (190 kJ/lb), [ 7 ] the difference between the two specific enthalpies, 540 kJ/kg (240 kJ/lb), is the ...