Longview power station
| Longview power station | |||
|---|---|---|---|
| location | |||
|
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| Coordinates | 39 ° 42 ′ 28 ″ N , 79 ° 57 ′ 30 ″ W | ||
| country | United States | ||
| Waters | Artificial ponds / Monongahela River | ||
| Data | |||
| Type | coal-fired power station | ||
| Primary energy | Fossil energy | ||
| fuel | Hard coal | ||
| power | 700 MW electric | ||
| owner | Longview Power, LLC | ||
| Project start | February 2007 | ||
| Start of operations | December 2011 | ||
| boiler | Foster Wheeler- Benson boiler | ||
| Firing | Dust firing | ||
| Website | Longview Power | ||
The Longview power plant is a coal-fired power plant near Maidsville in the US state of West Virginia with an installed capacity of 700 MW (net) and 769 MW (gross).
The power plant, built by Siemens Power Generation and Aker Kværner from 2007 to 2011 , was the first new coal-fired power plant to be built in the northeastern United States in 20 years. It was also the first supercritical, pulverized coal - fired power plant with a FW-BENSON boiler . The sulfur dioxide emissions are minimized by the flue gas scrubber and the nitrogen oxide emissions by the SCR .
The innovative once-through boiler with vertically standing corrugated tubes was supplied by Foster Wheeler . These are more efficient, but have to contend with flow instabilities compared to horizontal ones. The boiler delivers supercritical steam at 569 ° C at 265 bar.
The Longview power plant is fired with local hard coal from Mepco , which is brought to the coal bunker on a 7.2 km long belt conveyor . In 2016, up to 20% natural gas , which is very cheap in the USA, was also contributed. In order to have enough gas even in winter, the world's largest mobile LNG system was installed at the power plant .
Remodeling due to defects
After completion at the end of 2011, the power plant had to struggle with major problems, mainly due to the T23 type boiler steel used. In 2013, the project company filed for Chapter 11 bankruptcy protection.
In 2016, after the replacement of certain flue pipes with T22 with Inconel coating, the introduction of a combustion air measurement system and a new control system from Emerson Electric and a new construction of the incorrectly designed flue gas cleaning system, the power plant was finally put into operation. The additional measures cost US $ 120 million .
Individual evidence
- ↑ Siemens press release: Siemens hands over Longview coal-fired power plant in West Virginia, USA , January 3, 2012
- ↑ a b Foster Wheeler: The World's First Supercritical FW-BENSON Vertical PC Boiler - The 750 MW e Longview Power Project
- ↑ a b c Longview Power Plant Rehabilitation Results in Most Efficient US Coal Plant . In: POWER Magazine . August 1, 2016 ( powermag.com ).
- ^ Patrick Fitzgerald, Emily Glazer: Longview Power, Coal Supplier File for Bankruptcy . In: Wall Street Journal . August 30, 2013 ( wsj.com ).
- ^ Emerson Process Management: Emerson helps Longview power plant become one of the cleanest, most efficient coal-fired units in the United States , May 17, 2016