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Chimneys
A chimney is an architectural ventilation structure made of masonry, clay or metal that isolates hot toxic exhaust gases or smoke produced by a boiler, stove, furnace, incinerator, or fireplace from human living areas. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney effect. The space inside a chimney is called the ''flue''. Chimneys are adjacent to large industrial refineries, fossil fuel combustion facilities or part of buildings, steam locomotives and ships. In the United States, the term '' smokestack industry'' refers to the environmental impacts of burning fossil fuels by industrial society, including the electric industry during its earliest history. The term ''smokestack'' (colloquially, ''stack'') is also used when referring to locomotive chimneys or ship chimneys, and the term ''funnel'' can also be used. The height of a chimney i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimney Sweep
A chimney sweep is a person who inspects then clears soot and creosote from chimneys. The chimney uses the pressure difference caused by a hot column of gas to create a draught and draw air over the hot coals or wood enabling continued combustion. Chimneys may be straight or contain many changes of direction. During normal operation, a layer of creosote builds up on the inside of the chimney, restricting the flow. The creosote can also catch fire, setting the chimney (and potentially the entire building) alight. The chimney must be swept to remove the soot. In Great Britain, master sweeps took apprentices, typically workhouse or orphan boys, and trained them to climb chimneys. In the German States, master sweeps belonged to trade guilds and did not use climbing boys. In Italy, Belgium, and France, climbing boys were used. The occupation requires some dexterity, and carries health risks. History The Tudors in England had established the risk of chimneys and an ordinance w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimney (locomotive)
The chimney (smokestack or stack in American and Canadian English) is the part of a steam locomotive through which smoke leaves the boiler. As well, steam locomotive exhaust systems typically vent cylinder steam exhaust through the chimney, to enhance the draught through the boiler. Chimneys are designed to carry the exhaust steam and smoke clear of the driver's line of sight while remaining short enough to clear overhead structures. Some chimneys included apparatus to suppress the dispersal of sparks. Function The chimney was usually located at the leading end of the locomotive, above the smokebox, furthest away from the driver's cab and firebox. The earliest locomotive chimneys were typically tall enough to sustain temperature-induced density difference draught through a fire-tube boiler while the locomotive was stationary. However, following the example of Richard Trevithick's first locomotive in 1804, most designs diverted steam cylinder exhaust upward through the chimney ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fireplace
A fireplace or hearth is a structure made of brick, stone or metal designed to contain a fire. Fireplaces are used for the relaxing ambiance they create and for heating a room. Modern fireplaces vary in heat efficiency, depending on the design. Historically, they were used for heating a dwelling, cooking, and heating water for laundry and domestic uses. A fire is contained in a firebox or fire pit; a chimney or other flue allows exhaust gas to escape. A fireplace may have the following: a foundation, a hearth, a firebox, a mantel, a chimney crane (used in kitchen and laundry fireplaces), a grate, a lintel, a lintel bar, an overmantel, a damper, a smoke chamber, a throat, a flue, and a chimney filter or afterburner. On the exterior, there is often a corbelled brick crown, in which the projecting courses of brick act as a drip course to keep rainwater from running down the exterior walls. A cap, hood, or shroud serves to keep rainwater out of the exterior of the chimney; r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stack Effect
The stack effect or chimney effect is the movement of air into and out of buildings through unsealed openings, chimneys, flue-gas stacks, or other purposefully designed openings or containers, resulting from air buoyancy. Buoyancy occurs due to a difference in indoor-to-outdoor air density resulting from temperature and moisture differences. The result is either a positive or negative buoyancy force. The greater the thermal difference and the height of the structure, the greater the buoyancy force, and thus the stack effect. The stack effect can be useful to drive natural ventilation in certain climates, but in other circumstances may be a cause of unwanted air infiltration or fire hazard. In buildings Since buildings are not totally sealed (at the very minimum, there is always a ground level entrance), the stack effect will cause air infiltration. During the heating season, the warmer indoor air rises up through the building and escapes at the top either through open windows, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thornbury, South Gloucestershire
Thornbury is a market town and civil parish in the South Gloucestershire unitary authority area of England, about north of Bristol. It had a population of 12,063 at the 2011 census, rising to 14,496 in the 2021 census. Thornbury is a Britain in Bloom award-winning town, with its own competition: Thornbury in Bloom. The earliest documentary evidence of a village at "Thornbyrig" dates from the end of the 9th century. The Domesday Book of 1086 noted a manor of "Turneberie" belonging to William the Conqueror’s consort, Matilda of Flanders, with 104 residents. History There is evidence of human activity in the Thornbury area in the Neolithic and Bronze Ages, but evidence of the Roman presence is confined to the Thornbury hoard of 11,460 Roman coins dating from 260 to 348 CE, found in 2004 during the digging of a fishpond. The earliest documentary evidence of a village at "Thornbyrig" dates from the end of the 9th century. Domesday Book noted a manor of "Turneberie" belonging t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tudor Style Architecture
The Tudor architectural style is the final development of medieval architecture in England and Wales, during the Tudor period (1485–1603) and even beyond, and also the tentative introduction of Renaissance architecture to Britain. It followed the Late Gothic Perpendicular style and, gradually, it evolved into an aesthetic more consistent with trends already in motion on the continent, evidenced by other nations already having the Northern Renaissance underway Italy, and especially France already well into its revolution in art, architecture, and thought. A subtype of Tudor architecture is Elizabethan architecture, from about 1560 to 1600, which has continuity with the subsequent Jacobean architecture in the early Stuart period. In the much more slow-moving styles of vernacular architecture, "Tudor" has become a designation for half-timbered buildings, although there are cruck and frame houses with half-timbering that considerably predate 1485 and others well after 160 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furnace (house Heating)
A furnace (American English), referred to as a heater or boiler in British English, is an appliance used to generate heat for all or part of a building. Furnaces are mostly used as a major component of a central heating system. Furnaces are permanently installed to provide heat to an interior space through intermediary fluid movement, which may be air, steam, or hot water. Heating appliances that use steam or hot water as the fluid are normally referred to as a residential steam boilers or residential hot water boilers. The most common fuel source for modern furnaces in North America and much of Europe is natural gas; other common fuel sources include LPG (liquefied petroleum gas), fuel oil, wood and in rare cases coal. In some areas electrical resistance heating is used, especially where the cost of electricity is low or the primary purpose is for air conditioning. Modern high-efficiency furnaces can be up to 98% efficient and operate without a chimney, with a typical gas fu ... [...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] |
Gothic Architecture
Gothic architecture is an architectural style that was prevalent in Europe from the late 12th to the 16th century, during the High Middle Ages, High and Late Middle Ages, surviving into the 17th and 18th centuries in some areas. It evolved from Romanesque architecture and was succeeded by Renaissance architecture. It originated in the Île-de-France and Picardy regions of northern France. The style at the time was sometimes known as ''opus Francigenum'' (); the term ''Gothic'' was first applied contemptuously during the later Renaissance, by those ambitious to revive the Classical architecture, architecture of classical antiquity. The defining design element of Gothic architecture is the Pointed arch (architecture), pointed arch. The use of the pointed arch in turn led to the development of the pointed rib vault and flying buttresses, combined with elaborate tracery and stained glass windows. At the Abbey of Basilica of Saint-Denis, Saint-Denis, near Paris, the choir was rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgian Architecture
Georgian architecture is the name given in most English-speaking countries to the set of architectural styles current between 1714 and 1830. It is named after the first four Monarchy of the United Kingdom, British monarchs of the House of Hanover, George I of Great Britain, George I, George II of Great Britain, George II, George III, and George IV, who reigned in continuous succession from August 1714 to June 1830. The Georgian cities of the British Isles were Edinburgh, Bath, Somerset, Bath, pre-independence Georgian Dublin, Dublin, and London, and to a lesser extent York and Bristol. The style was revived in the late 19th century in the United States as Colonial Revival architecture and in the early 20th century in Great Britain as Neo-Georgian architecture; in both it is also called Georgian Revival architecture. In the United States, the term ''Georgian'' is generally used to describe all buildings from the period, regardless of style; in Britain it is generally restricte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westminster Cathedral
Westminster Cathedral, officially the Metropolitan Cathedral of the Most Precious Blood, is the largest Catholic Church in England and Wales, Roman Catholic church in England and Wales. The shrine is dedicated to the Blood of Jesus Christ and is the seat of the Archbishop of Westminster. The original site on which the cathedral stands in the City of Westminster was purchased by the Roman Catholic Diocese of Westminster, Diocese of Westminster in 1885, and construction was completed in 1903. Designed by John Francis Bentley in a 9th-century Christian Neo-Byzantine architecture, neo-Byzantine style, and accordingly made almost entirely of brick, without steel reinforcements, Sir John Betjeman called it "a masterpiece in striped brick and stone" that shows "the good craftsman has no need of steel or concrete." The cathedral merited an Apostolic Visit from Pope John Paul II on 28 May 1982 and Pope Benedict XVI in 18 September 2010. History In the late 19th century, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable nuclide, stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its Amphoterism, amphoteric nature; lead and lead oxides react with acids and base (chemistry), bases, and it tends to form covalent bonds. Lead compounds, Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
