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Small Wind Turbine
Small wind turbines, also known as micro wind turbines or urban wind turbines, are wind turbines that generate electricity for Microgeneration, small-scale use. These turbines are typically smaller than those found in wind farms. Small wind turbines often have passive yaw systems as opposed to active ones. They use a Direct-drive mechanism, direct drive generator and use a tail fin to point into the wind, whereas larger turbines have Gearbox, geared powertrains that are actively pointed into the wind. They usually produce between 500 W and 10 kW, with some as small as 50 W. The Canadian Wind Energy Association considers small wind turbines to be up to 300 kW, while the IEC 61400 standard defines them as having a rotor area smaller than 200 m2 and generating voltage below 1000 Va.c. or 1500 Vd.c. Design Blades Turbine airfoil, blades for small-scale wind turbines are typically in diameter and produce 0.5-10 kW at their optimal wind speed. Most small wind tur ...
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Natural Fiber
Natural fibers or natural fibres (see Spelling differences#-re, -er, spelling differences) are fibers that are produced by geology, geological processes, or from the bodies of plants or animals. They can be used as a component of Composite material, composite materials, where the orientation of fibers impacts the properties. Natural fibers can also be Felted, matted into sheets to make paper or felt. The earliest evidence of humans using fibers is the discovery of wool and dyed flax fibers found in a prehistoric cave in the Georgia (country), Republic of Georgia that date back to 36,000 Before Present, BP. Natural fibers can be used for high-tech applications, such as Composite material, composite parts for automobiles and medical supplies. Compared to composites reinforced with glass fibers, composites with natural fibers have advantages such as lower density, better thermal insulation, and reduced skin irritation. Further, unlike glass fibers, natural fibers can be broken down ...
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Micro Wind And Solar Wiring Diagram
Micro may refer to: Measurement * micro- (μ), a metric prefix denoting a factor of 10−6 Places * Micro, North Carolina, town in U.S. People * DJ Micro, (born Michael Marsicano) an American trance DJ and producer * Chii Tomiya (都宮 ちい, born 1991), Japanese female professional wrestler, ring name Micro * Micro, Nishimiya Yūki (born 1980), Japanese musician, member of the pop band Def Tech Arts, entertainment, and media * Micro (comics), often known as Micro, a character in Marvel Comics * ''Micro'' (novel), techno-thriller by Michael Crichton, published posthumously in 2011 * Micro (Thai band), a Thai rock band formed in 1983 * ''IEEE Micro'', a peer-reviewed scientific journal * International Symposium on Microarchitecture, an academic conference focus on microarchitecture * Micromanagement (gameplay), the handling of detailed gameplay elements, such as individual units in realtime strategy games Brands and enterprises * Micro Cars, Sri Lankan automobile compan ...
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Unconventional Wind Turbines
Unconventional wind turbines are those that differ significantly from the most common types in use. , the most common type of wind turbine is the three-bladed upwind horizontal-axis wind turbine (HAWT), where the turbine rotor is at the front of the nacelle and facing the wind upstream of its supporting turbine tower. A second major unit type is the vertical-axis wind turbine (VAWT), with blades extending upwards, supported by a rotating framework. Due to the large growth of the wind power industry, many wind turbine designs exist, are in development, or have been proposed. The variety of designs reflects ongoing commercial, technological, and inventive interests in harvesting wind resources more efficiently and in greater volume. Some unconventional designs have entered commercial use, while others have only been demonstrated or are only theoretical concepts. Unconventional designs cover a wide gamut of innovations, including different rotor types, basic functionalities, s ...
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Scaffold Base Plate
Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other human-made structures. Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Unsafe scaffolding has the potential to result in death or serious injury. Scaffolding is also used in adapted forms for formwork and shoring, grandstand seating, concert stages, access/viewing towers, exhibition stands, ski ramps, half pipes and art projects. There are six main types of scaffolding used worldwide today. These are tube and coupler (fitting) components, prefabricated modular system scaffold components, H-frame / façade modular system scaffolds, suspended scaffolds, timber scaffolds and bamboo scaffolds (particularly in China, India and Hong Kong). Each type is made from several components which often include: * A base jack or plate whi ...
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Carbon Sequestration
Carbon sequestration is the process of storing carbon in a carbon pool. It plays a crucial role in Climate change mitigation, limiting climate change by reducing the amount of Carbon dioxide in Earth's atmosphere, carbon dioxide in the atmosphere. There are two main types of carbon sequestration: biologic (also called ''biosequestration'') and geologic. Biologic carbon sequestration is a naturally occurring process as part of the carbon cycle. Humans can enhance it through deliberate actions and use of technology. Carbon dioxide () is naturally captured from the atmosphere through biological, chemical, and physical processes. These processes can be accelerated for example through changes in land use and agricultural practices, called carbon farming. Artificial processes have also been devised to produce similar effects. This approach is called carbon capture and storage. It involves using technology to capture and sequester (store) that is produced from human activities under ...
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Pine
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. ''World Flora Online'' accepts 134 species-rank taxa (119 species and 15 nothospecies) of pines as current, with additional synonyms, and ''Plants of the World Online'' 126 species-rank taxa (113 species and 13 nothospecies), making it the largest genus among the conifers. The highest species diversity of pines is found in Mexico. Pines are widely species distribution, distributed in the Northern Hemisphere; they occupy large areas of boreal forest, but are found in many habitats, including the Mediterranean Basin, and dry tropical forests in southeast Asia and Central America. Wood from pine trees is one of the most extensively used types of timber, and some pines are widely used as Christmas trees. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reachin ...
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Juglans Regia
''Juglans regia'', known by various common names including the common walnut, English walnut, or Persian walnut amongst other names, is a species of walnut. It is native to Eurasia in at least southwest and central Asia and southeast Europe, but its exact natural area is obscure due to its long history of cultivation. The species has numerous cultivars which produce the edible walnut consumed around the world and produced predominately in China. It is widely cultivated across temperate regions throughout the world including those of Eurasia, Australia, and the Americas. Etymology The genus name, ''Juglans,'' is derived from two Latin words, ''jovis'', which means Jupiter, the chief god of the ancient Roman religion; and ''glans'' meaning an acorn or nut. The specific epithet, ''regia,'' is defined as regal or royal in references the quality of the fruit and edible nuts. Description ''Juglans regia'' is a large deciduous tree, attaining heights of , and a trunk up to in d ...
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Toona
''Toona'', commonly known as red cedar, toon (also spelled tun) or toona, tooni (in Nepal and India) is a genus in the mahogany family, Meliaceae, native from Afghanistan south to India, and east to North Korea, Papua New Guinea and eastern Australia. In older texts, the genus was often incorporated within a wider circumscription of the related genus '' Cedrela'', but that genus is now restricted to species from the Americas. Uses Ornamental use '' Toona sinensis'' is of interest as by far the most cold-tolerant species in the Meliaceae, native in China as far north as 40°N in the Beijing area, where its tender shoots, called ''xiangchun'' (), are a traditional local leaf vegetable. It is the only member of the family that can be cultivated successfully in northern Europe, where it is sometimes planted as an ornamental tree in parks and avenues. Until recently, it had no widespread English common name, though Chinese Mahogany (reflecting its botanical relationship) is now used ...
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Alnus Nepalensis
''Alnus nepalensis'' is a large alder tree found in the subtropical highlands of the Himalayas. The tree is called Utis in Nepali and Nepalese alder in English. It is used in land reclamation, as firewood and for making charcoal. Description ''Alnus nepalensis'' is a large deciduous alder with silver-gray bark that reaches up to 30 m in height and 60 cm in diameter. The leaves are alternate, simple, shallowly toothed, with prominent veins parallel to each other, 7–16 cm long and 5–10 cm broad. The flowers are catkins, with the male and female flowers separate but produced on the same tree. The male flowers are long and pendulous, while the female flowers are erect, , with up to eight together in axillary racemes. Unusually for an alder, they are produced in the autumn, with the seeds maturing the following year. Distribution It occurs throughout the Himalaya at 500–3000 m of elevation from Pakistan through India, Nepal and Bhutan to Yunnan in southwest ...
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Dalbergia Sissoo
''Dalbergia sissoo'', known commonly as North Indian rosewood or shisham, is a fast-growing, hardy, deciduous rosewood tree native to the Indian subcontinent and southern Iran. ''D. sissoo'' is a large, crooked tree with long, leathery leaves and whitish or pink flowers. Description ''Dalbergia sissoo'' is a medium to large deciduous tree with a light crown, which reproduces by seeds and basal shoot, suckers. It can grow up to in height and in diameter, but is usually smaller. Trunks are often crooked when grown in the open. Leaves are leathery, alternate, pinnately compound, and about long. Flowers are whitish to pink, fragrant, nearly sessile, up to long, and in dense clusters in length. Pods are oblong, flat, thin, strap-like, long, wide, and light brown. They contain one to five flat, bean-shaped seeds, long. They have a long taproot and numerous surface roots that produce suckers. Young shoots are downy and drooping; established stems have light brown to dark gray b ...
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Samanea Saman
''Samanea saman'' is a species of Flowering plant, flowering tree in the pea family, Fabaceae, now in the Mimosoideae, Mimosoid clade and is native to Central and South America. It is often placed in the genus ''Samanea'', which by yet other authors is subsumed in ''Albizia'' entirely. Its range extends from Mexico south to Peru and Brazil, but it has been widely Introduced species, introduced to South Asia, South and Southeast Asia, as well as the Pacific Islands, including Hawaii. It is a well-known tree, rivaled perhaps only by lebbeck and Albizia julibrissin, pink siris among its genus. It is well represented in many languages and has numerous local names in its native range; common English names include saman, rain tree and monkeypod (see also below). In Cambodia it is colloquially known as the Chankiri Tree (can be written or ). Description Tree Saman is a wide-canopied tree with a large symmetrical umbrella-shaped crown. It usually reaches a height of and a diam ...
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