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Greenwich Power Station
Greenwich Power Station is a standby gas and formerly oil and coal-fired power station by the River Thames at Greenwich in south-east London. Originally constructed to supply power for London's tram system, since 1988 it has been London Underground's central emergency power supply, providing power if there is partial or total loss of National Grid supplies. History The power station was constructed on the riverside site of a former tram depot operated by the London Tramways Company (and before that by the Pimlico Peckham & Greenwich Street Tramway Company, taken over in 1873). An Act of Parliament, The London County Council (Tramways and Improvement) Act 1902, empowered London County Council to construct new tramways, improve existing ones and to "erect maintain and use a station for generating and transforming electrical energy with all necessary engines dynamos plant and machinery." The station was designed by William Edward Riley, chief architect of the LCC architects depa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenwich Power Station
Greenwich Power Station is a standby gas and formerly oil and coal-fired power station by the River Thames at Greenwich in south-east London. Originally constructed to supply power for London's tram system, since 1988 it has been London Underground's central emergency power supply, providing power if there is partial or total loss of National Grid supplies. History The power station was constructed on the riverside site of a former tram depot operated by the London Tramways Company (and before that by the Pimlico Peckham & Greenwich Street Tramway Company, taken over in 1873). An Act of Parliament, The London County Council (Tramways and Improvement) Act 1902, empowered London County Council to construct new tramways, improve existing ones and to "erect maintain and use a station for generating and transforming electrical energy with all necessary engines dynamos plant and machinery." The station was designed by William Edward Riley, chief architect of the LCC architects depa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The O2 (London)
The O2 is a large entertainment district on the Greenwich peninsula in South East London, England, including an indoor arena, a music club, a Cineworld cinema, an exhibition space, piazzas, bars, and restaurants. It was built largely within the former Millennium Dome, a large dome-shaped canopy built to house an exhibition celebrating the turn of the third millennium; consequently ''The Dome'' remains a name in common usage for the venue. It is sometimes referred to as The O2 Arena, but that name properly refers to an indoor arena within The O2. Naming rights to the district were purchased by the mobile telephone provider O2 from its developers, Anschutz Entertainment Group (AEG), during the development of the district. AEG owns the long-term lease on the O2 Arena and surrounding leisure space. From the closure of the original Millennium Experience exhibition occupying the site, several ways of reusing the Millennium Dome's shell were proposed and then rejected. The ren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Electric Railways Company Of London
The Underground Electric Railways Company of London Limited (UERL), known operationally as the Underground for much of its existence, was established in 1902. It was the holding company for the three deep-level "tube"A "tube" railway is an underground railway constructed in a circular tunnel by the use of a tunnelling shield, usually deep below ground level. Today the word is used colloquially to refer to any or all of the London Underground, even those parts using cut and cover or running above ground. underground railway lines opened in London during 1906 and 1907: the Baker Street and Waterloo Railway, the Charing Cross, Euston and Hampstead Railway and the Great Northern, Piccadilly and Brompton Railway. It was also the parent company from 1902 of the District Railway, which it electrified between 1903 and 1905. The UERL is a precursor of today's London Underground; its three tube lines form the central sections of today's Bakerloo, Northern and Piccadilly lines. The UERL ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cogeneration
Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Cogeneration is a more efficient use of fuel or heat, because otherwise- wasted heat from electricity generation is put to some productive use. Combined heat and power (CHP) plants recover otherwise wasted thermal energy for heating. This is also called combined heat and power district heating. Small CHP plants are an example of decentralized energy. By-product heat at moderate temperatures (100–180 °C, 212–356 °F) can also be used in absorption refrigerators for cooling. The supply of high-temperature heat first drives a gas or steam turbine-powered generator. The resulting low-temperature waste heat is then used for water or space heating. At smaller scales (typically below 1 MW), a gas engine or diesel engine may be used. Cogeneration is also common with geothermal power plants as they often produce relatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lots Road Power Station
Lots Road Power Station is a disused coal and later oil-fired and later gas-fired power station on the River Thames at Lots Road in Chelsea, London in the south-west of the Royal Borough of Kensington & Chelsea, which supplied electricity to the London Underground system. It is sometimes erroneously referred to as Fulham Power Station, a name properly applied to another former station a mile south-west along the Tideway. History A power station at Lots Road was originally planned by the Brompton & Piccadilly Circus Railway (B&PCR, now part of the Piccadilly line) in 1897. The B&PCR was controlled by the District Railway (DR, now the District line) from 1898, and was sold in 1901 to Charles Yerkes' Metropolitan District Electric Traction Company, which built the station to provide power to the DR. The station allowed the District line trains to change from steam haulage to electric. At around the same time the Metropolitan Railway built its power station at Neasden. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Turbine
A gas turbine, also called a combustion turbine, is a type of 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 electrical generator (power turbine). Grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Holdings
Rolls-Royce Holdings plc is a British multinational aerospace and defence company incorporated in February 2011. The company owns Rolls-Royce, a business established in 1904 which today designs, manufactures and distributes power systems for aviation and other industries. Rolls-Royce is the world's second-largest maker of aircraft engines (after General Electric) and has major businesses in the marine propulsion and energy sectors. Rolls-Royce was the world's 16th largest defence contractor in 2018 when measured by defence revenues. Rolls-Royce Holdings plc is listed on the London Stock Exchange, where it is a constituent of the FTSE 100 Index. At the close of London trading on 28 August 2019, the company had a market capitalisation of £4.656bn, the 85th-largest of any company with a primary listing on the London Stock Exchange. The company's registered office is at Kings Place, near Kings Cross in London. History Ownership Rolls-Royce grew from the engineering busines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horizontal Coordinate System
The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles: altitude and azimuth. Therefore, the horizontal coordinate system is sometimes called as the az/el system, the alt/az system, or the alt-azimuth system, among others. In an altazimuth mount of a telescope, the instrument's two axes follow altitude and azimuth. Definition This celestial coordinate system divides the sky into two hemispheres: The upper hemisphere, where objects are above the horizon and are visible, and the lower hemisphere, where objects are below the horizon and cannot be seen, since the Earth obstructs views of them. The great circle separating the hemispheres is called the celestial horizon, which is defined as the great circle on the celestial sphere whose plane is normal to the local gravity vector. In practice, the horizon can be defined as the plane tangent to a quiet, liquid surface, such as a pool of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Meridian (Greenwich)
The historic prime meridian or Greenwich meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. The modern IERS Reference Meridian widely used today is based on the Greenwich meridian, but differs slightly from it. This prime meridian (at the time, one of many) was first established by Sir George Airy in 1851, and by 1884, over two-thirds of all ships and tonnage used it as the reference meridian on their charts and maps. In October of that year, at the behest of US President Chester A. Arthur, 41 delegates from 25 nations met in Washington, D.C., United States, for the International Meridian Conference. This conference selected the meridian passing through Greenwich as the world standard prime meridian due to its popularity. However, France abstained from the vote, and French maps continued to use the Paris meridian for several decades. In the 18th century, London lexicographer Malachy Postlethwayt published ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Observatory, Greenwich
The Royal Observatory, Greenwich (ROG; known as the Old Royal Observatory from 1957 to 1998, when the working Royal Greenwich Observatory, RGO, temporarily moved south from Greenwich to Herstmonceux) is an observatory situated on a hill in Greenwich Park in south east London, overlooking the River Thames to the north. It played a major role in the history of astronomy and navigation, and because the Prime Meridian passes through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory code of 000, the first in the list. ROG, the National Maritime Museum, the Queen's House and the clipper ship ''Cutty Sark'' are collectively designated Royal Museums Greenwich. The observatory was commissioned in 1675 by King Charles II, with the foundation stone being laid on 10 August. The old hilltop site of Greenwich Castle was chosen by Sir Christopher Wren, a former Savilian Professor of Astronomy; as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Turbine
A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible expansion process. Because the turbine generates rotary motion, it can be coupled to a generator to harness its motion into electricity. Such turbogenerators are the core of thermal power stations which can be fueled by fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maurice Fitzmaurice
Sir Maurice Fitzmaurice CMG (11 May 1861–17 November 1924) was an Irish civil engineer. He was apprenticed to Benjamin Baker and worked with him on the Forth Railway Bridge before going to Egypt to build the Aswan Dam for which he was appointed both a member of the Ottoman Order of the Mejidiye and a companion of the British Order of St Michael and St George. Following this Fitzmaurice was Chief Engineer to the London County Council and was responsible for the Blackwall, Rotherhithe and Woolwich tunnels. In later life his consultancy advised on docks and harbours across the British Commonwealth as well as the Sennar Dam in Sudan and he was recognised with the prestigious honour of the presidency of the Institution of Civil Engineers for the 1916-17 session. Early life and apprenticeship Fitzmaurice was born in Tralee, County Kerry, Ireland in 1861. He received an education at The Royal School, Armagh prior to studying civil engineering at Trinity College, Dubli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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