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Armengaud-Lemale Gas Turbine
The Armengaud-Lemale gas turbine was an early experimental turbine engine built by the ''Société Anonyme des Turbomoteurs'' at their facility in Saint-Denis, Paris during 1906. The machine is named after the society's founders, Rene Armengaud and Charles Lemale. The 1906 Armengaud-Lemale gas turbine could sustain its own air compression but was too inefficient to produce useful work. Although it was unsuccessful as a gas turbine, the combustion chamber design from the 1906 machine was later used successfully in torpedo engines. Design and development In 1901, Charles Lemale obtained a patent for a gas turbine and in 1903 he founded the ''Société Anonyme des Turbomoteurs'' with Rene Armengaud. The society proposed a number of new technologies including hollow turbine blades, combustion reheat and compressor stage inter-cooling. In 1904 the society built a small proof of concept gas turbine. Air was supplied to an oil fueled combustion chamber by a centrifugal compressor at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Turbine
A gas turbine or gas turbine engine is a type of Internal combustion engine#Continuous combustion, continuous flow internal combustion engine. The main parts common to all gas turbine engines form the power-producing part (known as the gas generator or core) and are, in the direction of flow: * a rotating gas compressor * a combustor * a compressor-driving turbine. Additional components have to be added to the gas generator to suit its application. Common to all is an air inlet but with different configurations to suit the requirements of marine use, land use or flight at speeds varying from stationary to supersonic. A propelling nozzle is added to produce thrust for flight. An extra turbine is added to drive a propeller (turboprop) or ducted fan (turbofan) to reduce fuel consumption (by increasing propulsive efficiency) at subsonic flight speeds. An extra turbine is also required to drive a helicopter rotor or land-vehicle transmission (turboshaft), marine propeller or electric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Rateau
Auguste Rateau (; 13 October 1863 – 13 January 1930) was an engineer and industrialist born in Royan, France, specializing in turbines. Biography After studies, first at the École Polytechnique and then at the École des Mines de Paris, he began his career as a teacher at the École des Mines de Saint-Étienne from 1888 to 1897. He then embarked on an industrial career exploiting turbines. He manufactured fans for mines, blowers for steel mills, water pumps, and steam turbines for ships. To this end, he created a design office in Paris and, in 1903, the ''Société pour l’exploitation des appareils Rateau'', which moved in 1917 to La Courneuve where he opened a factory two years later. The company has since been integrated into Alstom, and La Courneuve's premises are still operated by GE Power Service. This entity manages the maintenance of turbomachines, turbo-pumps and turbocompressors installed on nuclear, thermal and industrial sites in France and in some parts of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Compressors
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Many compressors can be staged, that is, the gas is compressed several times in steps or stages, to increase discharge pressure. Often, the second stage is physically smaller than the primary stage, to accommodate the already compressed gas without reducing its pressure. Each stage further compresses the gas and increases its pressure and also temperature (if inter cooling between stages is not used). Types Compressors are similar to pumps: both increase the pressure on a fluid (such as a gas) and both can transport the fluid through a pipe. The main distinction is that the focus of a compressor is to change the density or volume of the fluid, which is mostly only achievable on gases. Gases are compressible, while liquids are relatively incompressible, so compressors are rarely used for liquids. The main action of a pump is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Revolutions Per Minute
Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or r⋅min−1) is a unit of rotational speed (or rotational frequency) for rotating machines. One revolution per minute is equivalent to hertz. Standards ISO 80000-3:2019 defines a physical quantity called ''rotation'' (or ''number of revolutions''), dimensionless, whose instantaneous rate of change is called ''rotational frequency'' (or ''rate of rotation''), with units of reciprocal seconds (s−1). A related but distinct quantity for describing rotation is ''angular frequency'' (or ''angular speed'', the magnitude of angular velocity), for which the SI unit is the radian per second (rad/s). Although they have the same dimensions (reciprocal time) and base unit (s−1), the hertz (Hz) and radians per second (rad/s) are special names used to express two different but proportional ISQ quantities: frequency and angular frequency, respectively. The conversions between a frequency and an angular frequency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuchâtel Gas Turbine
The Neuchâtel gas turbine is the world's first electric power-generating gas turbine to go into commercial operation. It was designed and constructed by Brown, Boveri & Cie and installed in 1939 at the municipal power station in Neuchâtel, Switzerland. The gas turbine was in service as a standby unit from 1940 until its retirement in 2002. In recognition of its historical significance, the turbine was awarded "mechanical landmark" status by the American Society of Mechanical Engineers (ASME) in 1988. In 2007, the Neuchâtel gas turbine was restored and put on display at Alstom's facility in Birr, Switzerland. Design and development Brown, Boveri & Cie (BBC) first became involved with gas turbines when they began building turbo-compressors in collaboration with the French industrialist Auguste Rateau. The first machine built under this agreement was a 25 impeller, three casing centrifugal compressor for the experimental 1906 Armengaud-Lemale gas turbine. BBC worked on a nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Efficiency
In thermodynamics, the thermal efficiency (\eta_) is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, ACs etc. For a heat engine, thermal efficiency is the ratio of the net work output to the heat input; in the case of a heat pump, thermal efficiency (known as the '' coefficient of performance'' or COP) is the ratio of net heat output (for heating), or the net heat removed (for cooling) to the energy input (external work). The efficiency of a heat engine is fractional as the output is always less than the input while the COP of a heat pump is more than 1. These values are further restricted by the Carnot theorem. Overview In general, energy conversion efficiency is the ratio between the useful output of a device and the input, in energy terms. For thermal efficiency, the input, Q_, to the device is heat, or the heat-content of a fuel that is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armengaud Lemale Combustion Chamber
Ermengol in Catalan, Armengol or Armengod in Spanish, Ermengaud in French, Ermengau in Occitan, and Hermengaudius in Latin is a Germanic given name of Gothic origin meaning "ready for battle". The name was Arabised during the Middle Ages as أرمقند, ''Armaqand''. *Ermengol of Rouergue *Saint Ermengol * Ermengol I of Urgell * Ermengol II of Urgell *Ermengol III of Urgell * Ermengol IV of Urgell *Ermengol V of Urgell *Ermengol VI of Urgell *Ermengol VII of Urgell *Ermengol VIII of Urgell *Ermengol IX of Urgell *Ermengol X of Urgell *Armengaud Blaise (died 1312), a physician, translator and an author *Ermengol Graus It was also the surname of a late medieval family of the Languedoc The Province of Languedoc (, , ; ) is a former province of France. Most of its territory is now contained in the modern-day region of Occitanie in Southern France. Its capital city was Toulouse. It had an area of approximately . History ...: * Matfre Ermengau * Peire Ermengau {{gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown, Boveri & Cie
Brown, Boveri & Cie. (Brown, Boveri & Company; BBC) was a Swiss group of electrical engineering companies. It was founded in Baden bei Zürich, in 1891 by Charles Eugene Lancelot Brown and Walter Boveri who worked at the Maschinenfabrik Oerlikon. In 1988 BBC merged with ASEA to form ABB. Early history of BBC Brown Boveri BBC Brown Boveri was established in 1891. The company was one of only a few multinational corporations to operate subsidiaries that were larger than the parent company. Because of the limitations of the Swiss domestic market, Brown Boveri established subsidiaries throughout Europe relatively early in its history, and at times had difficulty maintaining managerial control over some of its larger operating units. The merger with ASEA, a company which was praised for its strong management, was expected to help Brown Boveri reorganize and reassert control over its vast international network. Activity in Britain Brown Boveri's early activities included manufac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustaf De Laval
Karl Gustaf Patrik de Laval (; 9 May 1845 – 2 February 1913) was a Swedish engineer and inventor who made important contributions to the design of steam turbines and centrifugal separation machinery for dairy. Life Gustaf de Laval was born at Orsa Municipality, Orsa in Dalarna in the Swedish de Laval Huguenot family (immigrated 1622 - Claude de Laval, soldier - knighted de Laval 1647). He enrolled at the Royal Institute of Technology, Institute of Technology in Stockholm (later the Royal Institute of Technology, KTH) in 1863, receiving a degree in mechanical engineering in 1866, after which he matriculated at Uppsala University in 1867. He was then employed by the Swedish mining company, Stora Enso, Stora Kopparberg. From there he returned to Uppsala University and completed his doctorate in 1872. He was further employed in Kloster, Sweden, Kloster Iron works in Husby parish, Sweden. de Laval was a member of the Royal Swedish Academy of Sciences from 1886. He was a successful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerosene
Kerosene, or paraffin, is a combustibility, combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in Aviation fuel, aviation as well as households. Its name derives from the Greek (''kērós'') meaning "wax"; it was registered as a trademark by Nova Scotian, Nova Scotia geologist and inventor Abraham Pineo Gesner, Abraham Gesner in 1854 before evolving into a generic trademark. It is sometimes spelled kerosine in scientific and industrial usage. Kerosene is widely used to power jet engines of aircraft (jet fuel), as well as some rocket engines in a highly refined form called RP-1. It is also commonly used as a cooking and lighting fuel, and for fire toys such as Poi (performance art)#Fire poi, poi. In parts of Asia, kerosene is sometimes used as fuel for small outboard motors or even motorcycles. World total kerosene consumption for all purposes is equivalent to about 5,500,000 barrels per day as of July 2023. The term "kerosene" is comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially, a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships without the need of large guns, though somet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint-Denis, Seine-Saint-Denis
Saint-Denis (, ) is a Communes of France, commune in the northern suburbs of Paris, France. It is located from the Kilometre zero, centre of Paris. Saint-Denis is the second most populated suburb of Paris (after Boulogne-Billancourt), with a population of 113,116 at the 2020 census. It is a Subprefectures in France, subprefecture () of the Departments of France, department of Seine-Saint-Denis, being the seat of the Arrondissement of Saint-Denis, Seine-Saint-Denis, arrondissement of Saint-Denis. It is also part of the Métropole du Grand Paris. Saint-Denis is home to the royal necropolis of the Basilica of Saint-Denis and was also the location of the associated abbey. The commune is also home to France's national association and rugby football stadium, Stade de France, which was built for the 1998 FIFA World Cup. The stadium also hosted the Rugby sevens at the 2024 Summer Olympics, rugby and Athletics at the 2024 Summer Olympics, athletics events, along with the 2024 Summer Ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
