Tienlun Dam

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Tienlun Dam
Tienlun Dam01.jpg
Official name 天輪壩
Location Heping, Taichung, Taiwan
Dam and spillways
Impounds Dajia River
Length 91 m
Total capacity 590,000 m3
Turbines 1 X 105 MW, 4 X 22.5 MW
Installed capacity 195 MW
Annual generation 557 GWh

Tienlun Dam (Chinese :天輪壩; pinyin :Tiānlún Bà) is a concrete gravity dam on the Dajia River in Heping District, Taichung, Taiwan. Built from 1952 to 1956, the dam is the fourth in a cascade of hydroelectric dams along the Dajia River, located upstream from the Ma'an Dam and downstream of the Kukuan Dam.

Chinese language family of languages

Chinese is a group of related, but in many cases not mutually intelligible, language varieties, forming the Sinitic branch of the Sino-Tibetan language family. Chinese is spoken by the Han majority and many minority ethnic groups in China. About 1.2 billion people speak some form of Chinese as their first language.

Hanyu Pinyin, often abbreviated to pinyin, is the official romanization system for Standard Chinese in mainland China and to some extent in Taiwan. It is often used to teach Standard Mandarin Chinese, which is normally written using Chinese characters. The system includes four diacritics denoting tones. Pinyin without tone marks is used to spell Chinese names and words in languages written with the Latin alphabet, and also in certain computer input methods to enter Chinese characters.

Gravity dam

A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by primarily using the weight of the material alone to resist the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable, independent of any other dam section.

The dam is 48.2 m (158 ft) high and 91 m (299 ft) long, with a storage capacity of 590,000 m3 (480 acre⋅ft) of water. [1] It supplies water to a power station consisting of one 105 megawatt (MW) turbine and four 22.5 MW turbines for a capacity of 195 MW, generating 557 million kilowatt hours per year. [2]

Kilowatt hour unit of energy

The kilowatt hour is a unit of energy equal to 3.6 megajoules. If energy is transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt hours is equal to the power in kilowatts multiplied by the time in hours. The kilowatt hour is commonly used as a billing unit for energy delivered to consumers by electric utilities.

See also

Electricity sector in Taiwan

The electricity sector in Taiwan ranges from generation, transmission, distribution and sales of electricity, covering Taiwan island and its offshore islands.

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  1. Reservoirs and Weirs in Taiwan (in Chinese). Taiwan Water Resources Agency, Ministry of Public Affairs. p. 327.
  2. "大甲溪" (PDF) (in Chinese). Taiwan Water Resources Agency. 2009-01-22. Archived from the original (PDF) on 2011-08-15. Retrieved 2013-06-25.

Coordinates: 24°12′38.44″N121°00′56.9″E / 24.2106778°N 121.015806°E / 24.2106778; 121.015806

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.