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IÉ 90000 Class
The Iarnród Éireann 90000 Class is a type of electric multiple unit (EMU) which will be deployed on the DART network in Dublin, Ireland. In December 2021 Iarnród Éireann chose Alstom as supplier of up to 750 carriages, in five- or ten-carriage trains, and made an initial order of 19 five-carriage trains, 13 of which will be battery electric multiple units (BEMUs). A second order was placed in December 2022 for 18 five-car BEMUs. Background Iarnród Éireann were in talks with the NTA by 2017 about acquiring a new fleet of bi-mode DART trains to replace the current fleet. Plans to order new DART trains had previously been announced in 2008, but had been cancelled as a result of the Great Recession. A tender for the 600 new DART carriages was published in March 2019, attracting bids from Bombardier Transportation (Alstom after Bombardier's buyout), Siemens Mobility and Stadler Rail. The class is part of the DART+ project, which will expand DART services to lines which are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Multiple Unit
An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number of the carriages. An EMU is usually formed of two or more semi-permanently coupled carriages. However, electrically powered single-unit railcars are also generally classed as EMUs. The vast majority of EMUs are passenger trains but versions also exist for carrying mail. EMUs are popular on intercity, commuter, and suburban rail networks around the world due to their fast acceleration and pollution-free operation, and are used on most rapid-transit systems. Being quieter than diesel multiple units (DMUs) and locomotive-hauled trains, EMUs can operate later at night and more frequently without disturbing nearby residents. In addition, tunnel design for EMU trains is simpler as no provision is needed for exhausting fumes, although retrofitting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Post-2008 Irish Economic Downturn
The post-2008 Irish economic downturn in the Republic of Ireland, coincided with a Post-2008 Irish banking crisis, series of banking scandals, followed the 1990s and 2000s Celtic Tiger period of rapid real economic growth fuelled by foreign direct investment, a subsequent Irish property bubble, property bubble which rendered the real economy uncompetitive, and an expansion in bank lending in the early 2000s. An initial slowdown in economic growth during the 2008 financial crisis greatly intensified in late 2008 and the country fell into recession for the first time since the 1980s. Emigration, as well as unemployment (particularly in the construction sector), escalated to levels not seen since that decade. The Irish Stock Exchange (ISEQ) general index, which reached a peak of 10,000 points briefly in April 2007, fell to 1,987 points—a 14-year low—on 24 February 2009 (the last time it was under 2,000 being mid-1995). In September 2008, the Irish government—a Fianna Fáil–G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Line
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, Electric multiple unit, electric multiple units, trolleybuses or trams. The generic term used by the International Union of Railways for the technology is ''overhead line''. It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment (OLE or OHLE), overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire. An overhead line consists of one or more wires (or Overhead conductor rail, rails, particularly in tunnels) situated over rail tracks, raised to a high electrical potential by connection to feeder stations at regularly spaced intervals along the track. The feeder stations are usually fed from a High voltage, high-voltage Electricity distribution, electrical grid. Overview Electric trains that collect their current from overhead lines use a de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium-ion Battery
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids to store energy. Li-ion batteries are characterized by higher specific energy, energy density, and energy efficiency and a longer cycle life and calendar life than other types of rechargeable batteries. Also noteworthy is a dramatic improvement in lithium-ion battery properties after their market introduction in 1991; over the following 30 years, their volumetric energy density increased threefold while their cost dropped tenfold. In late 2024 global demand passed per year, while production capacity was more than twice that. The invention and commercialization of Li-ion batteries has had a large impact on technology, as recognized by the 2019 Nobel Prize in Chemistry. Li-ion batteries have enabled portable consumer electronics, laptop computers, cellular phones, and electric cars. Li-ion batteries also see signifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IÉ 8500, 8510 And 8520 Classes
The Iarnród Éireann 8500, 8510 and 8520 Classes are three related types of electric multiple unit, EMU used on the Dublin Area Rapid Transit, DART network in Dublin, Ireland. The total fleet numbers a total of 17 four-car trains, all of which were constructed by the Japan Transport Engineering Company, Tokyu Car Corporation. 8500 Class The 8500 Class were delivered in 2000 and were the first four car units to be used on the DART network. They are numbered in the sequence 860X+850X+850Y+860Y. 850X/850Y units are power cars while 860X/860Y units are unpowered driving trailers. Their interior destination displays and public announcement system has been long turned off. Like all DART units, the 8500 Class are maintained at Fairview DART depot, Fairview depot, and are also stabled at Bray Daly railway station, Bray Station. 8510 Class The 8510 Class were delivered in 2001 as three 4-car trains supplementing the original 8500 Class. Vehicles are numbered in the sequence 861X+85 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
