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Robert Stirling
Robert Stirling (25 October 1790 – 6 June 1878) was a Scottish clergyman and engineer. He invented the Stirling engine and was inducted into the Scottish Engineering Hall of Fame in 2014. Early life Robert Stirling was born at Cloag Farm, a location in Scotland near the village of Methven, Perthshire. A member of the Dublane side of the Stirling family, Robert was born to Patrick and Agnes Stirling. He was one of eight children that Patrick and Agnes shared. His grandfather was Michael Stirling, most famously known for his invention of the threshing machine. Robert's father, Patrick, also spent time experimenting and innovating with industrial agricultural equipment. Though Robert, like his father and grandfather, had a natural inclination for engineering, he began attending Edinburgh University in 1805 at the age of fifteen to study divinity in hopes of becoming a minister. His brother James, who would play a major role in Stirling's future engineering endeavours, als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methven, Perth And Kinross
Methven (; ) is a large village in the Scottish region of Perth and Kinross, on the A85 road due west of the city of Perth. It is near the village of Almondbank. The village has its own primary school, church, bowling club, community halls, playing field with sports facilities and skate-park, and a variety of businesses. There is a local primary school in the village, and a large co-educational boarding and day independent school nearby, called Glenalmond College, described by '' The Good Schools Guide'' as providing an "outstanding" quality of education. Etymology A Brittonic name, ''Methven'' is thought to be derived from words equivalent to Welsh ''medd'' "mead", and ''maen'' (in this case, mutated to ''faen'') "stone". Businesses To the south of the village, along Station Road, a small industrial estate occupies the former site of Methven Station. Closed since 27 September 1937, the station was originally the western terminus of the Perth, Almond Valley and Methven Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economiser
Economizers (US and Oxford spelling), or economisers (UK), are mechanical devices intended to reduce energy consumption, or to perform useful function such as preheating a fluid. The term economizer is used for other purposes as well. Boiler, power plant, heating, refrigeration, ventilating, and air conditioning ( HVAC) may all use economizers. In simple terms, an economizer is a heat exchanger. Stirling engine Robert Stirling's innovative contribution to the design of hot air engines of 1816 was what he called the 'Economiser'. Later known as the regenerator, it stored heat from the hot portion of the engine as the air passed to the cold side, and released heat to the cooled air as it returned to the hot side. This innovation improved the efficiency of the Stirling engine enough to make it commercially successful in particular applications, and has since been a component of every air engine that is called a Stirling engine. Boilers In boilers, economizers are heat exchange ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1790 Births
Events January–March * January 8 – United States President George Washington gives the first State of the Union address, in New York City. * January 11 – The 11 minor states of the Austrian Netherlands, which took part in the Brabant Revolution at the end of 1789, sign a Treaty of Union, creating the United States of Belgium. * January 14 – U.S. Secretary of the Treasury Alexander Hamilton submits his proposed plan for payment of American debts, starting with $12,000,000 to pay the foreign debts of the confederation, followed by $40 million for domestic debts, and $21.5 million for the war debts of the states. The plan is narrowly approved 14-12 in the Senate, and 34-28 in the House.''Harper's Encyclopaedia of United States History from 458 A. D. to 1909'', ed. by Benson John Lossing and, Woodrow Wilson (Harper & Brothers, 1910) p169 * January 15 – Fletcher Christian & 8 mutineers aboard the ''Bounty'' land on Pitcairn. * January 26 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Applications Of The Stirling Engine
Applications of the Stirling engine range from mechanical propulsion to heating and cooling to electrical generation systems. A Stirling engine is a heat engine operating by cyclic compression and expansion of air or other gas, the "working fluid", at different temperature levels such that there is a net conversion of heat to mechanical work. The Stirling cycle heat engine can also be driven in reverse, using a mechanical energy input to drive heat transfer in a reversed direction (i.e. a heat pump, or refrigerator). There are several design configurations for Stirling engines that can be built (many of which require rotary or sliding seals) which can introduce difficult tradeoffs between frictional losses and refrigerant leakage. A free-piston variant of the Stirling engine can be built, which can be completely hermetically sealed, reducing friction losses and completely eliminating refrigerant leakage. For example, a free-piston Stirling cooler (FPSC) can convert an electrical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stirling Cycle
The Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices. This includes the original Stirling engine that was invented, developed and patented in 1816 by Robert Stirling with help from his brother, an engineer. The ideal Otto cycle, Otto and Diesel cycle, Diesel cycles are not totally reversible because they involve heat transfer through a finite temperature difference during the irreversible Isochoric process, isochoric/Isobaric process, isobaric heat-addition and heat-rejection processes. The irreversibility renders the thermal efficiency of these cycles less than that of a Carnot heat engine, Carnot engine operating within the same limits of temperature. Another cycle that features isothermal heat-addition and heat-rejection processes is the Stirling cycle, which is an altered version of the Carnot cycle in which the two isentropic processes featured in the Carnot cycle are replaced by two constant-volume regeneration processes. The c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Ayrshire
East Ayrshire (; ) is one of 32 unitary council areas of Scotland. It shares borders with Dumfries and Galloway, East Renfrewshire, North Ayrshire, South Ayrshire and South Lanarkshire. The headquarters of the council are located on London Road, Kilmarnock. With South Ayrshire and the mainland areas of North Ayrshire, it formed the Shires of Scotland, former county of Ayrshire. East Ayrshire had a population of 122,100 at the 2011 census, making it the List of Scottish council areas by population, 16th most populous local authority in Scotland. Spanning a geographical area of , East Ayrshire is the List of Scottish council areas by area, 14th-largest local authority in Scotland in terms of geographical area. The majority of the population of East Ayrshire live within and surrounding the main town, Kilmarnock. Other large population areas in East Ayrshire include Cumnock, the second-largest town, and smaller towns and villages such as Stewarton, Darvel and Hurlford. The area is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rev Stirling's Air Engine, 1827, Hunterian Museum, Glasgow
Rev, REV or Rév may refer to: Abbreviations Rev. * Rev., an abbreviation for revolution, as in Revolutions per minute * Rev., an abbreviation for the religious style The Reverend * Rev., the abbreviation for RunRev, Runtime Revolution, a development environment * Rev., an abbreviation for the Book of Revelation * Rev., an abbreviation for Reverse (other), Reverse * Rev., an abbreviation for Revision (other), Revision * Rev., an abbreviation for Revolver * Rev., an abbreviation for Review, as in: ** Chem. Rev. (Chemical Reviews), a peer-reviewed scientific journal ** Phys. Rev. (Physical Review), an American scientific journal Revs * Revs (video game), ''Revs'' (video game), a 1984 Formula Three simulation computer game * Revs (graffiti artist), tag name of a graffiti artist in New York City * The Revs, an Irish rock band * Revs, the nickname for the New England Revolution soccer club in America Acronyms * REV Bremerhaven, a professional hockey team in Germany's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States's civil list of government space agencies, space program, aeronautics research and outer space, space research. National Aeronautics and Space Act, Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion (spacecraft), Orion spacecraft and the Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Alamos National Laboratory
Los Alamos National Laboratory (often shortened as Los Alamos and LANL) is one of the sixteen research and development Laboratory, laboratories of the United States Department of Energy National Laboratories, United States Department of Energy (DOE), located a short distance northwest of Santa Fe, New Mexico, in the Southwestern United States, American southwest. Best known for its central role in helping develop the First Atomic bomb, first atomic bomb, LANL is one of the world's largest and most advanced scientific institutions. Los Alamos was established in 1943 as Project Y, a top-secret site for designing nuclear weapons under the Manhattan Project during World War II.The site was variously called Los Alamos Laboratory and Los Alamos Scientific Laboratory. Chosen for its remote yet relatively accessible location, it served as the main hub for conducting and coordinating nuclear research, bringing together some of the world's most famous scientists, among them numerous Nobel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bessemer Process
The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is steelmaking, removal of impurities and undesired elements, primarily excess carbon contained in the pig iron by oxidation with air being blown through the molten iron. Oxidation of the excess carbon also raises the temperature of the iron mass and keeps it molten. Virtually all the pig iron carbon is removed by the converter and so carbon must be added at the end of the process to create steel, 0.25% carbon content is a typical value for low carbon steel which is used in construction and other low-stress applications. The modern process is named after its inventor, the Englishman Henry Bessemer, who took out a patent on the process in 1856. The process was said to be independently discovered in 1851 by the American inventor William Kelly (inventor), William Kelly though the claim is con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Bessemer
Sir Henry Bessemer (19 January 1813 – 15 March 1898) was an English inventor, whose steel-making process would become the most important technique for making steel in the nineteenth century for almost one hundred years. He also played a significant role in establishing the town of Sheffield, nicknamed ‘Steel City’, as a major industrial centre. Bessemer had been trying to reduce the cost of steel-making for military ordnance, and developed his system for blowing air through molten pig iron to remove the impurities. This made steel easier, quicker and cheaper to manufacture, and revolutionised structural engineering. One of the most significant inventors of the Second Industrial Revolution, Bessemer also made at least 128 other inventions in the fields of iron, steel and glass. Unlike many inventors, he managed to bring his own projects to fruition and profited financially from their success. He was knighted for his contribution to science in 1879, and in the same year w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piston
A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder (engine), cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering Porting (engine)#Two-stroke porting, ports in the cylinder. __TOC__ Piston engines Internal combustion engines An internal combustion piston engine, internal combustion engine is acted upon by the pressure of the expanding combustion gases in the combustion chamber space at the top of the cylinder. This force then acts dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
