|
Ljungström Air Preheater
Ljungström air preheater is an air preheater invented by the Swedish engineer Fredrik Ljungström (1875–1964). The patent was achieved in 1930. The factory and workshop were in Lidingö throughout the 1920s, with about 70 employees. In the 1930s, the facilities were used as a film studio, and they were demolished in the 1970s to give space for new development. In 1995, the Ljungström air preheater was distinguished as the 185th International Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers. Ljungström's technology of the air preheater is implemented in a vast number of modern power stations around the world, with total attributed worldwide fuel savings estimated at 4,960,000,000 tons of oil, "few inventions have been as successful in saving fuel as the Ljungström Air Preheater". In modern boilers, the preheater can provide up to 20% of the total heat transfer Heat transfer is a discipline of thermal engineering that concerns the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ljungström Regenerative Heat Exchanger
Ljungström is a Swedish family originating from Jönköping County, Småland, through the bailiff Johan ''Liungström'' (''floruit'' 1716, died circa 1730). Members in selection * Johan Patrik Ljungström (1784–1859), jeweler * Jonas Patrik Ljungström (1827–1898), cartographer * Georg Ljungström (1861–1930), poet * Oscar Ljungström (1868–1943), engineer, armed forces officer * Birger Ljungström (1872–1948), industrialist * Fredrik Ljungström (1875–1964), industrialist * Gunnar Ljungström (1905–1999), technical designer * Astrid Ljungström (1905–1986), journalist * Olof Ljungström (1918–2013), engineer See also * Axel Ljungströms Fabriks AB * Ljungström air preheater Ljungström air preheater is an air preheater invented by the Swedish engineer Fredrik Ljungström (1875–1964). The patent was achieved in 1930. The factory and workshop were in Lidingö throughout the 1920s, with about 70 employees. In the 19 ... * Ljungström locomotive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Preheater
An air preheater is any device designed to heat air before another process (for example, combustion in a boiler), with the primary objective of increasing the thermal efficiency of the process. They may be used alone or to replace a recuperative heat system or to replace a steam coil. In particular, this article describes the combustion air preheaters used in large boilers found in thermal power stations producing electric power from e.g. fossil fuels, biomass or waste. (See Chapter 8 by Z.H. Lin) For instance, as the Ljungström air preheater has been attributed worldwide fuel savings estimated to 4,960,000,000 tons of oil, "few inventions have been as successful in saving fuel as the Ljungström Air Preheater", marked as the 44th International Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers. The purpose of the air preheater is to recover the heat from the boiler flue gas which increases the thermal efficiency of the boiler by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fredrik Ljungström
Fredrik Ljungström (16 June 1875 – 18 February 1964) was a Swedes, Swedish engineer, Industrial design, technical designer, and industrialist. Considered one of the foremost inventors of Sweden, Fredrik Ljungström accounted for hundreds of technical patents alone and in collaboration with his brother Birger Ljungström (1872–1948): from early bicycling locking hubs, free wheeling hubs techniques and mechanical automatic transmissions for vehicles, to steam turbines, air preheaters, and circular arc hulls for sailing boats. He co-founded companies such as #Svea Velocipede, The New Cycle Company, #Steam turbines, Ljungström Steam Turbine Co. and STAL, Ljungström Swedish Turbine Manufacturing Co. (STAL), and associated with other industrialists such as Alfred Nobel, Helge Palmcrantz, Gustaf de Laval, Curt Nicolin and Gustaf Dalén. As innovative as his ideas were in function, they also often turned out in terms of unconventional external design, such as his steam turbine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ljungström Logotype
Ljungström is a Swedish family originating from Jönköping County, Småland, through the bailiff Johan ''Liungström'' (''floruit'' 1716, died circa 1730). Members in selection * Johan Patrik Ljungström (1784–1859), jeweler * Jonas Patrik Ljungström (1827–1898), cartographer * Georg Ljungström (1861–1930), poet * Oscar Ljungström (1868–1943), engineer, armed forces officer * Birger Ljungström (1872–1948), industrialist * Fredrik Ljungström (1875–1964), industrialist * Gunnar Ljungström (1905–1999), technical designer * Astrid Ljungström (1905–1986), journalist * Olof Ljungström (1918–2013), engineer See also * Axel Ljungströms Fabriks AB * Ljungström air preheater Ljungström air preheater is an air preheater invented by the Swedish engineer Fredrik Ljungström (1875–1964). The patent was achieved in 1930. The factory and workshop were in Lidingö throughout the 1920s, with about 70 employees. In the 19 ... * Ljungström locomotive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling disclosure of the invention."A patent is not the grant of a right to make or use or sell. It does not, directly or indirectly, imply any such right. It grants only the right to exclude others. The supposition that a right to make is created by the patent grant is obviously inconsistent with the established distinctions between generic and specific patents, and with the well-known fact that a very considerable portion of the patents granted are in a field covered by a former relatively generic or basic patent, are tributary to such earlier patent, and cannot be practiced unless by license thereunder." – ''Herman v. Youngstown Car Mfg. Co.'', 191 F. 579, 584–85, 112 CCA 185 (6th Cir. 1911) In most countries, patent rights fall under private la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lidingö
Lidingö (), also known in its definite form Lidingön and as Lidingölandet, is an island in the inner Stockholm archipelago, northeast of Stockholm, Sweden. In 2023, the population of the Lidingö urban area on the island was 48,162. It is the seat of government of the Lidingö Municipality, Stockholm County. Lidingö's qualities have attracted affluent residents such as Björn Ulvaeus, Agnetha Fältskog, Anni-Frid Lyngstad and Benny Andersson of ABBA. Exclusive regions include the coastal region between and the east tip of the island, Gåshaga, as well as the east tip of the northern part of the horse shoe, called . Notwithstanding the fact that many middle-class Swedes have moved to the island, (due to rental apartment construction projects), the inhabitants of the municipality remains the third wealthiest in Sweden after Danderyd and Täby. History Runic inscriptions Two runic inscriptions have been found on Lidingö. The latest, listed in Rundata as the Uppland Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Society Of Mechanical Engineers
The American Society of Mechanical Engineers (ASME) is an American professional association that, in its own words, "promotes the art, science, and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and technical standard, standards, research, conferences and publications, government relations, and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, an advocacy organization, a provider of training and education, and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global. ASME has over 85,000 members in more than 135 countries worldwide. ASME was founded in 1880 by Alexander Lyman Holley, Henry Rossiter Worthington, John Edison Sweet and Matthias N. Forney in response to numerous steam boiler pressure vessel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Station
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more Electric generator, generators, rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a Electrical conductor, conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, petroleum, oil, and natural gas to generate electricity. Low-carbon power sources include nuclear power, and use of renewable energy, renewables such as solar power, solar, wind power, wind, geothermal power, geothermal, and hydroelectricity, hydroelectric. History In early 1871 Belgian inventor Zénobe Gramme invented a generator powerfu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel Savings
Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential energy contained in a carrier (fuel) into kinetic energy or work. Overall fuel efficiency may vary per device, which in turn may vary per application, and this spectrum of variance is often illustrated as a continuous energy profile. Non-transportation applications, such as industry, benefit from increased fuel efficiency, especially fossil fuel power plants or industries dealing with combustion, such as ammonia production during the Haber process. In the context of transport, fuel economy is the energy efficiency of a particular vehicle, given as a ratio of distance traveled per unit of fuel consumed. It is dependent on several factors including engine efficiency, transmission design, and tire design. In most countries, using the metric system, fuel economy is stated as "fuel consumption" in liters per 100 kilometers (L/ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boiler
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation. Heat sources In a fossil fuel power plant using a steam cycle for power generation, the primary heat source will be combustion of coal, oil, or natural gas. In some cases byproduct fuel such as the carbon monoxide rich offgasses of a coke battery can be burned to heat a boiler; biofuels such as bagasse, where economically available, can also be used. In a nuclear power plant, boilers called steam generators are heated by the heat produced by nuclear fission. Where a large volume of hot gas is available from some process, a heat recovery steam generator or recovery boiler can use the heat to produce steam, with little or no extra fuel consumed; such a configuration is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Transfer
Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, Convection (heat transfer), thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species (mass transfer in the form of advection), either cold or hot, to achieve heat transfer. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system. Heat conduction, also called diffusion, is the direct microscopic exchanges of kinetic energy of particles (such as molecules) or quasiparticles (such as lattice waves) through the boundary between two systems. When an object is at a different temperature from another body or its surroundings, heat flows so that the body and the surroundings reach the same temperature, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
