|
Sabri Ergun
Sabri Ergun (1 March 1918 – 18 February 2006) was a Turkish chemical engineer. He is known for the Ergun equation, which expresses the pressure drop across a packed bed. Biography Sabri Ergun was born on 1 March 1918 in Gerede in the Ottoman Empire (now Turkey).Sabri Ergun obituary on legacy.com, originally from the San Francisco Chronicle, 22 February 2006. He moved to the United States in 1943. He received B.S. and M.S. degrees in chemical engineering from and a D.Sc. degree from the |
Gerede
Gerede is a town and a district of Bolu Province in the Black Sea region of Turkey. It is located on the highway from Istanbul to Ankara (approximately from Ankara, where the road to the Black Sea coast branches off). It covers an area of , and the population (2000) is 41,391 of which 25,200 live in the town of Gerede. Elevation is about 1,450 m. The mayor is Mustafa Allar ( AKP). Gerede is a large area of hill country surrounded by pine-covered mountains, on a passage from central Anatolia to the Black Sea coast. The climate is notoriously cold and wet, enough to make it a centre for cross-country skiing, and traffic on the highway often has to negotiate fog, rain and ice around Gerede. History In Roman times, the town was called Cratia (Κρατεία) and was part of the Roman province of Honorias, whose capital was Claudiopolis in Honoriade. Ecclesiastical history Cratia was a metropolitan see, also called Flaviopolis or Flavianopolis. The names of some its bishops are k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turkic Peoples
The Turkic peoples are a collection of diverse ethnic groups of West, Central, East, and North Asia as well as parts of Europe, who speak Turkic languages.. "Turkic peoples, any of various peoples whose members speak languages belonging to the Turkic subfamily...". "The Turkic peoples represent a diverse collection of ethnic groups defined by the Turkic languages." According to historians and linguists, the Proto-Turkic language originated in Central-East Asia region, potentially in Mongolia or Tuva. Initially, Proto-Turkic speakers were potentially both hunter-gatherers and farmers, but later became nomadic pastoralists. Early and medieval Turkic groups exhibited a wide range of both East Asian and West-Eurasian physical appearances and genetic origins, in part through long-term contact with neighboring peoples such as Iranian, Mongolic, Tocharians, Yeniseian people, and others."Some DNA tests point to the Iranian connections of the Ashina and Ashide,133 highlighti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turkish Chemical Engineers
Turkish may refer to: *a Turkic language spoken by the Turks * of or about Turkey ** Turkish language *** Turkish alphabet ** Turkish people, a Turkic ethnic group and nation *** Turkish citizen, a citizen of Turkey *** Turkish communities and minorities in the former Ottoman Empire * Ottoman Empire (Ottoman Turkey), 1299–1922, previously sometimes known as the Turkish Empire ** Ottoman Turkish, the Turkish language used in the Ottoman Empire * Turkish Airlines, an airline * Turkish music (style), a musical style of European composers of the Classical music era See also * * * Turk (other) * Turki (other) * Turkic (other) * Turkey (other) * Turkiye (other) * Turkish Bath (other) * Turkish population, the number of ethnic Turkish people in the world * Culture of Turkey * History of Turkey ** History of the Republic of Turkey The Republic of Turkey was created after the overthrow of Sultan Mehmet VI Vahdettin by the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turkish Scientists
Turkish may refer to: *a Turkic language spoken by the Turks * of or about Turkey ** Turkish language *** Turkish alphabet ** Turkish people, a Turkic ethnic group and nation *** Turkish citizen, a citizen of Turkey *** Turkish communities and minorities in the former Ottoman Empire * Ottoman Empire (Ottoman Turkey), 1299–1922, previously sometimes known as the Turkish Empire ** Ottoman Turkish, the Turkish language used in the Ottoman Empire * Turkish Airlines, an airline * Turkish music (style), a musical style of European composers of the Classical music era See also * * * Turk (other) * Turki (other) * Turkic (other) * Turkey (other) * Turkiye (other) * Turkish Bath (other) * Turkish population, the number of ethnic Turkish people in the world * Culture of Turkey * History of Turkey :''See History of the Republic of Turkey for the history of the modern state.'' The history of Turkey, understood as the history o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2006 Deaths
File:2006 Events Collage V1.png, From top left, clockwise: The 2006 Winter Olympics open in Turin; Twitter is founded and launched by Jack Dorsey; The Nintendo Wii is released; Montenegro votes to declare independence from Serbia; The 2006 FIFA World Cup in Germany is won by Italy; Gol Transportes Aéreos Flight 1907 crashes in the Amazon rainforest after a mid-air collision with an Embraer Legacy 600 business jet; The 2006 Yogyakarta earthquake kills over 5,700 people; The IAU votes on the definition of "planet", which demotes Pluto and other Kuiper belt objects and redefines them as "dwarf planets"., 300x300px, thumb rect 0 0 200 200 2006 Winter Olympics rect 200 0 400 200 Twitter rect 400 0 600 200 Nintendo Wii rect 0 200 300 400 IAU definition of planet rect 300 200 600 400 2006 Montenegrin independence referendum rect 0 400 200 600 2006 Yogyakarta earthquake rect 200 400 400 600 Gol Transportes Aéreos Flight 1907 rect 400 400 600 600 2006 FIFA World Cup 2006 was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1918 Births
This year is noted for the end of the World War I, First World War, on the eleventh hour of the eleventh day of the eleventh month, as well as for the Spanish flu pandemic that killed 50–100 million people worldwide. Events Below, the events of World War I have the "WWI" prefix. January * January – 1918 flu pandemic: The "Spanish flu" (influenza) is first observed in Haskell County, Kansas. * January 4 – The Finnish Declaration of Independence is recognized by Russian Soviet Federative Socialist Republic, Soviet Russia, Sweden, German Empire, Germany and France. * January 9 – Battle of Bear Valley: U.S. troops engage Yaqui people, Yaqui Native American warriors in a minor skirmish in Arizona, and one of the last battles of the American Indian Wars between the United States and Native Americans. * January 15 ** The keel of is laid in Britain, the first purpose-designed aircraft carrier to be laid down. ** The Red Army (The Workers and Peasants Red Army) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bechtel
Bechtel Corporation () is an American engineering, procurement, construction, and project management company founded in San Francisco, California, and headquartered in Reston, Virginia. , the ''Engineering News-Record'' ranked Bechtel as the second largest construction company in the United States. History Founding and early years Bechtel's business activities began in 1898, when cattle farmer Warren A. Bechtel moved from Peabody, Kansas, to the Oklahoma Territory to construct railroads with his team of mules. Bechtel moved his family frequently between construction sites around the western United States for the next several years, eventually moving to Oakland, California, in 1904, where he worked as the superintendent on the Western Pacific Railroad. In 1906, W. A. Bechtel won his first subcontract to build part of the Oroville-to-Oakland section of the Western Pacific Railroad. That year he bought a steam shovel, becoming a pioneer of the new technology. He painted "W.A. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Karlsruhe
The Karlsruhe Institute of Technology (KIT; german: Karlsruher Institut für Technologie) is a public research university in Karlsruhe, Germany. The institute is a national research center of the Helmholtz Association. KIT was created in 2009 when the University of Karlsruhe (), founded in 1825 as a public research university and also known as the "Fridericiana", merged with the Karlsruhe Research Center (), which had originally been established in 1956 as a national nuclear research center (, or KfK). KIT is a member of the TU9, an incorporated society of the largest and most notable German institutes of technology.TU9 As part of the German Universities Excellence Initiative KIT was one of three universities which were awarded excellence status in 2006. In the following "German Excellence Strategy" KIT was awarded as one of eleven "Excellence Universities" in 2019. KIT is among the leading technical universities in Germany and Europe. According to different bibliometric ranking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Packed Bed
In chemical processing, a packed bed is a hollow tube, pipe, or other vessel that is filled with a packing material. The packing can be randomly filled with small objects like Raschig rings or else it can be a specifically designed structured packing. Packed beds may also contain catalyst particles or adsorbents such as zeolite pellets, granular activated carbon, etc. The purpose of a packed bed is typically to improve contact between two phases in a chemical or similar process. Packed beds can be used in a chemical reactor, a distillation process, or a scrubber, but packed beds have also been used to store heat in chemical plants. In this case, hot gases are allowed to escape through a vessel that is packed with a refractory material until the packing is hot. Air or other cool gas is then fed back to the plant through the hot bed, thereby pre-heating the air or gas feed. Applications Packed column In industry, a packed column is a type of packed bed used to perform s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Engineer
In the field of engineering, a chemical engineer is a professional, equipped with the knowledge of chemical engineering, who works principally in the chemical industry to convert basic raw materials into a variety of products and deals with the design and operation of plants and equipment. In general, a chemical engineer is one who applies and uses principles of chemical engineering in any of its various practical applications; these often include # design, manufacture, and operation of plants and machinery in industrial chemical and related processes ("chemical process engineers"); # development of new or adapted substances for products ranging from foods and beverages to cosmetics to cleaners to pharmaceutical ingredients, among many other products ("chemical product engineers"); and # development of new technologies such as fuel cells, hydrogen power and nanotechnology, as well as working in fields wholly or partially derived from chemical engineering such as materials sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ergun Equation
The Ergun equation, derived by the Turkish chemical engineer Sabri Ergun in 1952, expresses the friction factor in a packed column as a function of the modified Reynolds number. Equation f_p = \frac +1.75 where f_p and Gr_p are defined as f_p = \frac \frac \left(\frac\right) and Gr_p = \frac = \frac; where: Gr_p is the modified Reynolds number, f_p is the packed bed friction factor \Delta p is the pressure drop across the bed, L is the length of the bed (not the column), D_p is the equivalent spherical diameter of the packing, \rho is the density of fluid, \mu is the dynamic viscosity of the fluid, v_s is the superficial velocity (i.e. the velocity that the fluid would have through the empty tube at the same volumetric flow rate) \epsilon is the void fraction (porosity) of the bed. Re is the particle Reynolds Number (based on superficial velocity [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
