Wind lens

A wind lens is a modification made to a wind turbine to make it a more efficient way to capture wind energy. The modification is a ring structure called a "brim" or "wind lens" which surrounds the blades, diverting air away from the exhaust outflow behind the blades. The turbulence created as a result of the new configuration creates a low pressure zone behind the turbine, causing greater wind to pass through the turbine, and this, in turn, increases blade rotation and energy output. In Japan, wind lenses are being researched by the Wind Engineering Section of Kyushu University.

Their website claims:

Wind power is proportional to the wind speed cubed. If we can increase the wind speed with some mechanism by utilizing the fluid dynamic nature around a structure, namely if we can capture and concentrate the wind energy locally, the output power of a wind turbine can be increased substantially. At wind energy section of Kyushu University, a new efficient wind power turbine system has been developed. This system has a diffuser shroud at the circumference of its rotor to embody the wind energy concentration. The diffuser shroud is now named "Wind lens". To apply the wind-lens structure to a larger size turbine, we have developed a compact collection-acceleration device. There are several ongoing projects in which the wind-lens turbines are involved.

Lens

Lens may refer to:

Optics

Other radiation focus and forces

Places

Lens (surname)

Lens is a surname. Notable people with the surname include:

Lens, Switzerland

Lens is a municipality in the district of Sierre in the canton of Valais in Switzerland.

History

Lens is first mentioned in 1177 as de Lenz.

Geography

Lens has an area, as of 2009, of 13.9 square kilometers (5.4 sq mi). Of this area, 5.07 km² (1.96 sq mi) or 36.4% is used for agricultural purposes, while 5.48 km² (2.12 sq mi) or 39.4% is forested. Of the rest of the land, 2.74 km² (1.06 sq mi) or 19.7% is settled (buildings or roads), 0.1 km² (25 acres) or 0.7% is either rivers or lakes and 0.46 km² (0.18 sq mi) or 3.3% is unproductive land.

Of the built up area, housing and buildings made up 11.2% and transportation infrastructure made up 4.0%. while parks, green belts and sports fields made up 3.8%. Out of the forested land, 33.6% of the total land area is heavily forested and 5.8% is covered with orchards or small clusters of trees. Of the agricultural land, 0.4% is used for growing crops and 11.6% is pastures, while 9.1% is used for orchards or vine crops and 15.3% is used for alpine pastures. All the water in the municipality is in lakes.

Wind Mobile

Wind Mobile is a Canadian wireless telecommunications provider operated by Globalive. It was one of several new mobile carriers launched in Canada after a government initiative to encourage competition in the wireless sector, alongside Mobilicity (later acquired by Rogers Communications) and Public Mobile (later acquired by Telus). With 940,000 active subscribers, Wind is Canada's fourth-largest mobile operator.

Wind initially launched mobile data and voice services in the Greater Toronto and Hamilton Area, Ontario on December 16, 2009 and two days later in Calgary, Alberta. Since then, Southern Ontario has been the main target of network expansion: first with Ottawa in Q1 2011, and then with about half a dozen additional regions, the most recent being Brantford on July 3, 2014. In Western Canada, coverage was added to Edmonton, Alberta and has expanded around Edmonton to include Sherwood Park, Fort Saskatchewan, St. Albert and Edmonton International Airport; additionally, British Columbia was also added for most of Greater Vancouver area plus Abbotsford and Whistler.

Air (classical element)

Air (also sometimes called Wind) is often seen as a universal power or pure substance. Its fundamental importance to life can be seen in words such as aspire, inspire, perspire and spirit, all derived from the Latin spirare.

Greek and Roman tradition

Air is one of the four classical elements in ancient Greek philosophy and science. According to Plato, it is associated with the octahedron; air is considered to be both hot and wet. The ancient Greeks used two words for air: aer meant the dim lower atmosphere, and aether meant the bright upper atmosphere above the clouds.Plato, for instance writes that "So it is with air: there is the brightest variety which we call aether, the muddiest which we call mist and darkness, and other kinds for which we have no name...." Among the early Greek Pre-Socratic philosophers, Anaximenes (mid-6th century BCE) named air as the arche. A similar belief was attributed by some ancient sources to Diogenes Apolloniates (late 5th century BCE), who also linked air with intelligence and soul (psyche), but other sources claim that his arche was a substance between air and fire.Aristophanes parodied such teachings in his play The Clouds by putting a prayer to air in the mouth of Socrates.

WIND Hellas

WIND Hellas, formerly STET Hellas, is an integrated telecommunications provider with headquarters in Athens, Greece. WIND is the 3rd largest mobile operator in Greece (after Cosmote and Vodafone) with more than 4.4 million active subscribers (September 2010).

Background

Origins

STET Hellas originated in 1992 with the establishment of TELESTET, a subsidiary of the Italian company STET, now Telecom Italia. On September 30, 1992 the Greek Ministry of Transport and Communications issued a license to STET to create a national mobile telephony services network (GSM). The company invested the sum of 30 billion drachmas (about 88 million Euros) to create the network. This constituted one of the biggest investments in Greece since the end of the Second World War. Commercial operation started on June 29, 1993 when the first call from a mobile phone took place in the country.

In 1998 TELESTET was the first Greek mobile telephony company to be listed in international stock markets, the NASDAQ in New York City and the Amsterdam Stock Exchange.