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Wave Dragon
Wave Dragon is a concept wave energy converter of the overtopping type, developed by the Danish company Wave Dragon Aps. Incoming waves flow up a ramp into a reservoir, the water the drains back to sea level though a hydro-electric turbine, generating electricity. "Reflector arms" are used to focus incoming waves, to channel the waves towards the ramp, increasing the energy captured. In May 2003, it was the world's first offshore wave energy converter, connected to the Danish electricity grid. Testing continued in Denmark for several years until 2010. Plans were developed for a full-scale pre-commercial prototype in Wales, but this was never built. Part of the development of Wave Dragon was a joint EU research project, including partners from Austria, Denmark, Germany, Ireland, Portugal, Sweden, and the UK. History The concept was formulated in 1987, by Danish engineer Erik Friis-Madsen, and patented thereafter. Between 1998 and 2001, prototype testing of the device was condu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous administrative division, autonomous territories of the Faroe Islands and Greenland in the north Atlantic Ocean.* * * Metropolitan Denmark, also called "continental Denmark" or "Denmark proper", consists of the northern Jutland peninsula and an archipelago of 406 islands. It is the southernmost of the Scandinavian countries, lying southwest of Sweden, south of Norway, and north of Germany, with which it shares a short border. Denmark proper is situated between the North Sea to the west and the Baltic Sea to the east.The island of Bornholm is offset to the east of the rest of the country, in the Baltic Sea. The Kingdom of Denmark, including the Faroe Islands and Greenland, has roughly List of islands of Denmark, 1,400 islands greater than in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2008 Financial Crisis
The 2008 financial crisis, also known as the global financial crisis (GFC), was a major worldwide financial crisis centered in the United States. The causes of the 2008 crisis included excessive speculation on housing values by both homeowners and financial institutions that led to the 2000s United States housing bubble, exacerbated by predatory lending for subprime mortgages and deficiencies in regulation. Cash out refinancings had fueled an increase in consumption that could no longer be sustained when home prices declined. The first phase of the crisis was the subprime mortgage crisis, which began in early 2007, as mortgage-backed securities (MBS) tied to U.S. real estate, and a vast web of Derivative (finance), derivatives linked to those MBS, collapsed in value. A liquidity crisis spread to global institutions by mid-2007 and climaxed with the bankruptcy of Lehman Brothers in September 2008, which triggered a stock market crash and bank runs in several countries. The crisis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave Power
Wave power is the capture of energy of wind waves to do useful mechanical work, work – for example, electricity generation, desalination, or pumping water. A machine that exploits wave power (physics), power is a wave energy converter (WEC). Waves are generated primarily by wind passing over the sea's surface and also by tidal forces, temperature variations, and other factors. As long as the waves propagate slower than the wind speed just above, energy is transferred from the wind to the waves. Air pressure differences between the windward and leeward sides of a wave crest (physics), crest and surface friction from the wind cause shear stress and wave growth. Wave power as a descriptive term is different from tidal power, which seeks to primarily capture the energy of the current caused by the gravitational pull of the Sun and Moon. However, wave power and tidal power are not fundamentally distinct and have significant cross-over in technology and implementation. Other forces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moving Parts
Machines include both fixed and moving parts. The moving parts have controlled and constrained motions. Moving parts are machine components excluding any moving fluids, such as fuel, coolant or hydraulic fluid. Moving parts also do not include any mechanical locks, switches, nuts and bolts, screw caps for bottles etc. A system with no moving parts is described as " solid state". Mechanical efficiency and wear The amount of moving parts in a machine is a factor in its mechanical efficiency. The greater the number of moving parts, the greater the amount of energy lost to heat by friction between those parts. For example, in a modern automobile engine, roughly 7% of the total power obtained from burning the engine's fuel is lost to friction between the engine's moving parts. Conversely, the fewer the number of moving parts, the greater the efficiency. Machines with no moving parts at all can be very efficient. An electrical transformer, for example, has no moving parts, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Head Hydro Power
Low-head hydro power refers to the development of hydroelectric power where the head is typically less than 20 metres, although precise definitions vary. Head is the vertical height measured between the hydro intake water level and the water level at the point of discharge. Using only a low head drop in a river or tidal flows to create electricity may provide a renewable energy source that will have a minimal impact on the environment. Since the generated power (calculated the same as per general hydropower) is a function of the head these systems are typically classed as small-scale hydropower, which have an installed capacity of less than 5MW. Comparison to conventional hydro Most current hydroelectric projects use a large hydraulic head to power turbines to generate electricity. The hydraulic head either occurs naturally, such as a waterfall, or is created by constructing a dam in a river valley, creating a reservoir. Using a controlled release of water from the reservoir drive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WD Side Princip
WD may refer to: Arts and entertainment * ''The Walking Dead'' (TV series) * ''Watership Down'' * ''White Dwarf'' (magazine) Businesses and organizations Government agencies * Royal Canadian Air Force Women's Division * War Department (United Kingdom) Other businesses and organizations * DAS Air Cargo (IATA code WD) * Wardair (defunct IATA code WD) * WD-40 Company, manufacturer of household and multi-use products, well known for its signature brand, WD-40. * Western Digital, a computer storage manufacturer * Western Economic Diversification Canada, a Canadian government agency * Wikidata, a Wikimedia Foundation collaborative online project * Wilts & Dorset, a southern England bus operator * Winn-Dixie, an American supermarket chain Places * WD postcode area, England, UK * County Waterford, Ireland Science and technology * WD-40, a penetrating oil spray * Band 3, a protein * Web Dynpro, a web application for developing business applications * Whipple's disease, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nissum Bredning
Nissum Bredning is the westernmost '' bredning'' in the Limfjord situated between Thyborøn Channel, through which the fjord is connected to the North Sea, and Oddesund with Oddesund Bridge. Its size is around 200 km2 and the depth is up to 6 meters. The length from east to west is about 24 km, and from south ''Gjeller Odde'' to the north ''Røjensø Odde'' is about 10 kilometer; from here it continues as to the north. To the west, at Thyborøn and , there are some sandbanks, ''Fjordgrund'' and ''Gåseholm''. There is a navigable channel ''Sælhundeholm Løb'', going south from the channel along Agger Tange, passing Rønland with the chemical factory owned by FMC, formerly Cheminova, where it turns east. At the south end of Harboøre Tange is the town Harboøre, from here the coast turns to the east and a bit south. Partly through the little ''Hygum Nor'', there are several outlets from Ferring Sø, ''Søndervese'', and ''Nørrevese''. Further east after the out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WaveDragon
Wave Dragon is a concept wave energy converter of the overtopping type, developed by the Danish company Wave Dragon Aps. Incoming waves flow up a ramp into a reservoir, the water the drains back to sea level though a hydro-electric turbine, generating electricity. "Reflector arms" are used to focus incoming waves, to channel the waves towards the ramp, increasing the energy captured. In May 2003, it was the world's first offshore wave energy converter, connected to the Danish electricity grid. Testing continued in Denmark for several years until 2010. Plans were developed for a full-scale pre-commercial prototype in Wales, but this was never built. Part of the development of Wave Dragon was a joint EU research project, including partners from Austria, Denmark, Germany, Ireland, Portugal, Sweden, and the UK. History The concept was formulated in 1987, by Danish engineer Erik Friis-Madsen, and patented thereafter. Between 1998 and 2001, prototype testing of the device was conduc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pembrokeshire
Pembrokeshire ( ; ) is a Principal areas of Wales, county in the South West Wales, south-west of Wales. It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and otherwise by the sea. Haverfordwest is the largest town and administrative headquarters of Pembrokeshire County Council. The county is generally sparsely populated and rural, with an area of and a population of 123,400. After Haverfordwest, the largest settlements are Milford Haven (13,907), Pembroke Dock (9,753), and Pembroke, Pembrokeshire, Pembroke (7,552). St Davids (1,841) is a city, the smallest by population in the UK. Welsh language, Welsh is spoken by 17.2 percent of the population, and for Landsker Line, historic reasons is more widely spoken in the north of the county than in the south. Pembrokeshire's coast is its most dramatic geographic feature, created by the complex geology of the area. It is a varied landscape which includes high sea cliffs, wide sandy beaches, the large natural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave Power
Wave power is the capture of energy of wind waves to do useful mechanical work, work – for example, electricity generation, desalination, or pumping water. A machine that exploits wave power (physics), power is a wave energy converter (WEC). Waves are generated primarily by wind passing over the sea's surface and also by tidal forces, temperature variations, and other factors. As long as the waves propagate slower than the wind speed just above, energy is transferred from the wind to the waves. Air pressure differences between the windward and leeward sides of a wave crest (physics), crest and surface friction from the wind cause shear stress and wave growth. Wave power as a descriptive term is different from tidal power, which seeks to primarily capture the energy of the current caused by the gravitational pull of the Sun and Moon. However, wave power and tidal power are not fundamentally distinct and have significant cross-over in technology and implementation. Other forces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Impact Assessment
Environmental impact assessment (EIA) is the assessment of the environmental impact, environmental consequences of a plan, policy, program, or actual projects prior to the decision to move forward with the proposed action. In this context, the term "environmental impact assessment" is usually used when applied to actual projects by individuals or companies and the term "strategic environmental assessment" (SEA) applies to policies, plans and programmes most often proposed by organs of state. It is a tool of Environmental management system, environmental management forming a part of project approval and decision-making. Environmental assessments may be governed by rules of Administrative law, administrative procedure regarding public participation and documentation of decision making, and may be subject to judicial review. The purpose of the assessment is to ensure that decision-makers consider the environmental impacts when deciding whether or not to proceed with a project. The I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offshore Wind Power
Offshore wind power or offshore wind energy is the generation of electricity through wind farms in bodies of water, usually at sea. There are higher wind speeds offshore than on land, so offshore farms generate more electricity per amount of capacity installed.Madsen & KrogsgaardOffshore Wind Power 2010 '' BTM Consult'', 22 November 2010. Retrieved: 22 November 2010. Offshore wind farms are also less controversial than those on land, as they have less impact on people and the landscape. Unlike the typical use of the term "offshore" in the marine industry, offshore wind power includes inshore water areas such as lakes, fjords and sheltered coastal areas as well as deeper-water areas. Most offshore wind farms employ fixed-foundation wind turbines in relatively shallow water. Floating wind turbines for deeper waters are in an earlier phase of development and deployment. As of 2022, the total worldwide offshore wind power nameplate capacity was 64.3 gigawatt (GW). China (49%) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
