|
John Sevier Fossil Plant
John Sevier Fossil Plant, commonly known as John Sevier Steam Plant, was a 0.88-gigawatt (880 MW) coal-fired power plant located in Hawkins County, Tennessee, south of Rogersville on the shore of the Holston River. It was operated by the Tennessee Valley Authority. It was decommissioned in 2012, and replaced by a combined-cycle natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbo ... plant in the same year. The plant and its two 350 foot tall smokestacks were demolished from 2015 to 2017. References Tennessee Valley Authority Buildings and structures in Hawkins County, Tennessee Energy infrastructure completed in 1955 Demolished buildings and structures in Tennessee {{US-powerstation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawkins County, Tennessee
Hawkins County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 56,721. Its county seat is Rogersville, Hawkins County is part of the Kingsport–Bristol–Bristol, TN- VA Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area, commonly known as the " Tri-Cities" region. History The land was given to William Armstrong as a land grant in the 1780s. With Armstrong built Stony Point. Armstrong's landholding was established as a county in 1787. It was named for Benjamin Hawkins, a U.S. Senator from North Carolina, the state which it was a part of at that time. In 1797, Louis Philippe (who would become King of the French in 1830) visited Armstrong's estate. During the American Civil War, Hawkins County saw combat. The Battle of Rogersville took place on November 6, 1863. Since the 1940s, a 1,900-2,200 acre area western Hawkins County was propose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rogersville, Tennessee
Rogersville is a town in, and the county seat of, Hawkins County, Tennessee, United States. It was settled in 1775 by the grandparents of Davy Crockett. It is named for its founder, Joseph Rogers. Tennessee's second oldest courthouse, the Hawkins County Courthouse, first newspaper ''The Knoxville Gazette'', and first post office are all located in Rogersville. The Rogersville Historic District is listed on the National Register of Historic Places. Rogersville is part of the Kingsport– Bristol (TN)– Bristol (VA) Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN- VA Combined Statistical Area – commonly known as the " Tri-Cities" region. The population of Rogersville as of the 2010 census was 4,671. History Settlement background In 1775, the grandparents of Davy Crockett, a future member of the United States Congress from Tennessee and hero of the Alamo, settled in the Watauga colony in the area in what is today Rog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennessee Valley Authority
The Tennessee Valley Authority (TVA) is a federally owned electric utility corporation in the United States. TVA's service area covers all of Tennessee, portions of Alabama, Mississippi, and Kentucky, and small areas of Georgia, North Carolina, and Virginia. While owned by the federal government, TVA receives no taxpayer funding and operates similarly to a private for-profit company. It is headquartered in Knoxville, Tennessee, and is the sixth largest power supplier and largest public utility in the country. The TVA was created by Congress in 1933 as part of President Franklin D. Roosevelt's New Deal. Its initial purpose was to provide navigation, flood control, electricity generation, fertilizer manufacturing, regional planning, and economic development to the Tennessee Valley, a region that had suffered from lack of infrastructure and poverty during the Great Depression, relative to the rest of the nation. TVA was envisioned both as a power supplier and a regional economi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bituminous Coal
Bituminous coal, or black coal, is a type of coal containing a tar-like substance called bitumen or asphalt. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. It is typically hard but friable. Its quality is ranked higher than lignite and sub-bituminous coal, but lesser than anthracite. It is the most abundant rank of coal, with deposits found around the world, often in rocks of Carboniferous age. Bituminous coal is formed from sub-bituminous coal that is buried deeply enough to be heated to or higher. Bituminous coal is used primarily for electrical power generation and in the steel industry. Bituminous coal suitable for smelting iron (''coking coal'' or ''metallurgical coal'' ) must be low in sulfur and phosphorus. It commands a higher price than other grades of bituminous coal (thermal coal) used for heating and power generation. Within the coal mining industry, this type of coal is known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holston River
The Holston River is a river that flows from Kingsport, Tennessee, to Knoxville, Tennessee. Along with its three major forks (North Fork, Middle Fork and South Fork), it comprises a major river system that drains much of northeastern Tennessee, southwestern Virginia, and northwestern North Carolina. The Holston's confluence with the French Broad River at Knoxville marks the beginning of the Tennessee River. The North Fork flows southwest from Sharon Springs in Bland County, Virginia. The Middle Fork flows from near the western border of Wythe County, Virginia, joining the South Fork in Washington County, Virginia, southeast of Abingdon. The South Fork rises near Sugar Grove in Smyth County and flows southwest to join the North Fork at Kingsport. The Watauga River, a tributary of the South Fork Holston, flows westward from Watauga County, North Carolina. The main stem of the Holston is impounded by the Tennessee Valley Authority's Cherokee Dam near Jefferson City, Ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megawatt
The watt (symbol: W) is the unit of Power (physics), power or radiant flux in the International System of Units, International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantification (science), quantify the rate of Energy transformation, energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish people, Scottish invention, inventor, mechanical engineer, and chemist who improved the Newcomen steam engine, Newcomen engine with his own Watt steam engine, steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one Newton (unit), newton, the rate at which Work (physics), work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal-fired Power Plant
A coal-fired power station or coal power plant is a thermal power station which burns coal to generate electricity. Worldwide, there are about 8,500 coal-fired power stations totaling over 2,000 gigawatts capacity. They generate about a third of the world's electricity, but cause many illnesses and early deaths, mainly from air pollution. A coal-fired power station is a type of fossil fuel power station. The coal is usually pulverized and then burned in a pulverized coal-fired boiler. The furnace heat converts boiler water to steam, which is then used to spin turbines that turn generators. Thus chemical energy stored in coal is converted successively into thermal energy, mechanical energy and, finally, electrical energy. Coal-fired power stations emit over 10 Gt of carbon dioxide each year, about one fifth of world greenhouse gas emissions, so are the single largest cause of climate change. More than half of all the coal-fired electricity in the world is generated in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combined Cycle Power Plant
A combined cycle power plant is an assembly of heat engines that work in tandem from the same source of heat, converting it into mechanical energy. On land, when used to make electricity the most common type is called a combined cycle gas turbine (CCGT) plant. The same principle is also used for marine propulsion, where it is called a combined gas and steam (COGAS) plant. Combining two or more thermodynamic cycles improves overall efficiency, which reduces fuel costs. The principle is that after completing its cycle in the first engine, the working fluid (the exhaust) is still hot enough that a second subsequent heat engine can extract energy from the heat in the exhaust. Usually the heat passes through a heat exchanger so that the two engines can use different working fluids. By generating power from multiple streams of work, the overall efficiency can be increased by 50–60%. That is, from an overall efficiency of the system of say 34% for a simple cycle, to as much as 64% ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Gas
Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbon dioxide, nitrogen, hydrogen sulfide, and helium are also usually present. Natural gas is colorless and odorless, so odorizers such as mercaptan (which smells like sulfur or rotten eggs) are commonly added to natural gas supplies for safety so that leaks can be readily detected. Natural gas is a fossil fuel and non-renewable resource that is formed when layers of organic matter (primarily marine microorganisms) decompose under anaerobic conditions and are subjected to intense heat and pressure underground over millions of years. The energy that the decayed organisms originally obtained from the sun via photosynthesis is stored as chemical energy within the molecules of methane and other hydrocarbons. Natural gas can be burned fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power (magazine)
Power most often refers to: * Power (physics), meaning "rate of doing work" ** Engine power, the power put out by an engine ** Electric power * Power (social and political), the ability to influence people or events ** Abusive power Power may also refer to: Mathematics, science and technology Computing * IBM POWER (software), an IBM operating system enhancement package * IBM POWER architecture, a RISC instruction set architecture * Power ISA, a RISC instruction set architecture derived from PowerPC * IBM Power microprocessors, made by IBM, which implement those RISC architectures * Power.org, a predecessor to the OpenPOWER Foundation * SGI POWER Challenge, a line of SGI supercomputers Mathematics * Exponentiation, "''x'' to the power of ''y''" * Power function * Power of a point * Statistical power Physics * Magnification, the factor by which an optical system enlarges an image * Optical power, the degree to which a lens converges or diverges light Social sciences and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WJHL-TV
WJHL-TV (channel 11) is a television station licensed to Johnson City, Tennessee, United States, serving the Tri-Cities area as an affiliate of CBS and ABC. The station is owned by Nexstar Media Group, and maintains studios on East Main Street in downtown Johnson City; its transmitter is located on Holston Mountain in the Cherokee National Forest. History WJHL-TV began broadcasting on October 26, 1953. It was owned by Hanes Lancaster, Sr. his son Hanes, Jr. and Jesse W. "Jay" Birdwell along with WJHL radio (910 AM, now WJCW; and FM 101.5, now WQUT). The call letters stood for John H. Lancaster, Hanes, Sr.'s father and Hanes, Jr.'s grandfather, who had founded the AM station in 1938. Hanes, Jr., who was the radio station's sales manager, was intrigued by the potential of television, and pushed hard for building a television counterpart to WJHL radio. Hanes, Sr. was skeptical, but Hanes, Jr. lined up enough potential investors to persuade his father to take the project under his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Hawkins County, Tennessee
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
