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Taichung Power Plant

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Taichung Power Plant

Taichung Power Plant
Taichung Power Plant is located in Taiwan
Taichung Power Plant
Location of Taichung Power Plant in Taiwan
Official name 台中發電廠
Country Taiwan
Location Longjing District, Taichung City
Coordinates
Status Operational
Commission date July 1990 (Unit 1-4 gas)
March 1991 (Unit 1 coal)[1]
August 1991 (Unit 2 coal)
June 1992 (Unit 3 coal)
October 1992 (Unit 4 coal)
March 1996 (Unit 5 coal)
May 1996 (Unit 6 coal)
October 1996 (Unit 7 coal)
June 1997 (Unit 8 coal)[2]
August 2005 (Unit 9 coal)
June 2006 (Unit 10 coal)[3]
Owner(s) Taipower
Thermal power station
Primary fuel Bituminous coal
Secondary fuel Natural gas
Power generation
Units operational 10 X 550 MW (coal)
4 X 70 MW (natural gas)
22 X 2 MW (wind power)
Make and model General Electric
Toshiba
Nameplate capacity 5,824 MW
7,424 MW (Planned, 2030)
Annual generation 42 TWh

The Taichung Power Plant (Chinese: 台中發電廠; pinyin: Táizhōng Fādiànchǎng) is a coal-fired power plant in Longjing, Taichung, Taiwan. With an installed coal-fired generation capacity of 5,500 MW, it is the largest coal-fired power station in the world,[4][5] and also the world's largest emitter of carbon dioxide with approximately 40 million tons annually (or about as much as the country of Switzerland as a whole).[6] Together with its gas-fired and wind generation units, the total installed capacity of the plant is 5,824 MW.

Generation units

The power plant consists of ten coal-fired units with nominal capacity of 550 MW each. Four original units were commissioned in 1991 and 1992. In 1996–1997, four additional units were added. The eight older units have a total estimated coal requirement of around 12 million tonnes of bituminous and 2.5 million tonnes of sub-bituminous coal a year. In August 2005 and June 2006, 550 MW sub-critical pressure units 9 and 10 were installed on the adjacent land reclaimed by depositing ash.[5]

In addition to ten coal-fired steam turbines, Taichung Power Plant has another four gas turbines and twenty two wind turbines which add another 280 MW and 44 MW additional capacity respectively.[7]

Components

The plant has a complex conveyor system. There are three belts from the Harbour which bring the coal into the plant via six ship unloaders, 2 bucket type and four screw type. The coal is either directed straight to a unit or stacked in the coal yard by 5 Stacker/ Reclaimers. The coal can be reclaimed from here and sent to any of the 10 units. There is built in redundancy in the critical conveyor paths.

All of the belts are equipped with fire detection system to monitor the temperature along the belt and to send alarms in the case of fire to minimize damage. The coal receiving facilities were completed in 1992.[8]

The boiler for each unit is drum type, water-cooled, naturally circulated with dry bottom furnace, balance draft and coal and oil-fired capability.

The steam turbine for each unit is a tandem-compound with four flow exhaust, single reheat and 550 MW rated capacity.

The generators are supercritical steam high power density.[2]

The electrostatic precipitator removes 99.8% of the particulates and classifies them for industrial cement and land reclamation.[9]

The power plant is connected to the grid via a 345 kV switchyard.[10]

Function

The power plant is designed for base load service and is able for daily startup and shutdown operation.[9] The plant's electricity is being sold to Taipower under a 25-year power purchase agreement.

Outgoing transmission line from Taichung Power Plant

Fuel supply

The power plant uses 12 million tons of bituminous and 2.5 million tons of sub-bituminous coal a year. Taipower buys 70% of the plant coal supply through long-term contracts from Australia, United States, South Africa, Indonesia and other sources. Indonesia is the prime source for the sub-bituminous coal. The remaining 30% of its coal supply is purchased on the spot market.[11]

Future expansion

There is an expansion plan to build two new 800 MW units by 2016.[3][12]

Awards

On 8 November 2010, the power plant won the outstanding award at the 23rd National QCC Competition, organized by Industrial Development Bureau of the Ministry of Economic Affairs.[13]

Transportation

Taichung Power Plant is accessible West from Longjing Station of the Taiwan Railway Administration.

See also

References

  1. ^ http://web3.moeaboe.gov.tw/ECW/english/content/ContentLink.aspx?menu_id=1540
  2. ^ a b http://www.power-technology.com/projects/taichung/
  3. ^ a b
  4. ^
  5. ^ a b
  6. ^
  7. ^ [1]
  8. ^
  9. ^ a b http://www.gibsin.com.tw/old/Case-Taichung1-10FPP.pdf
  10. ^ http://www.industcards.com/st-coal-taiwan.htm
  11. ^
  12. ^
  13. ^
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