Raozan Power Station Explained

Chittagong Thermal Power Station
Name Official:Raozan Tap Biddyut Kendro
Coordinates:22.4597°N 91.9789°W
Country:Bangladesh
Location:Raozan Upazila of Chittagong District
Commissioned:31 July 1993
Owner:Government of the People’s Republic of Bangladesh
Operator:Bangladesh Power Development Board
Th Fuel Primary:Natural gas
Ps Units Operational:2 X 210 MW
Ps Units Manu Model:Dong Fang
Ps Electrical Capacity:420 MW

Raozan Power Station is a gas-fired thermal power station in Bangladesh. It is located in Raozan Upazila of Chattogram District 25km (16miles) north-east from Chattogram on the south side of the Chattogram–Kaptai Highway. It is owned and operated by the state-owned Bangladesh Power Development Board.

History

Construction of the power station started on 1 February 1990 and the first unit was commissioned on 31 July 1993. It was constructed and credited by the China National Machinery and Equipment Import and Export Corporation.[1]

Technical features

The power station consists of two identical gas-fired units with an initial capacity of 210 MW and a generating capacity of 180 MW.[2] [3] [4] It is supplied from the Bakhrabad and Feni gas fields, and from the Sangu offshore field.[5] [6]

The N210-12.9-538/538 super high-pressure intermediate reheat condensing, three-cylinder double exhaustion turbo set turbine, installed at Unit 1, was manufactured by Dong Fang of China. It has a rated capacity of 210 MW and a normal speed of 3,000 RPM. The steam flow at the rated parameter at full load is 652.5 t/h at the temperature of 5380NaN0 with a live steam pressure of 12.9 MPa. The turbine was delivered in July 1991.

The boiler is a DG-680/13.7-14 type of super high pressure, one intermediate re-heat cycle and single drum natural cyclic type boiler manufactured by Dong Fang of China. It has a steam generating capacity of 680 t/h generating 5410NaN0 13.73 MPa pressured steam at the boiler outlet. At full load, it consumes 52695.4m3/h of natural gas. The efficiency of the boiler is rated at 94.93%. Transformers are manufactured by Shen Yang of China.

See also

Notes and References

  1. China to build second Raozan plant . Modern Power Systems . Progressive Media Markets Ltd. . August 1994 . 8 . 14 . 5 . 0260-7840.
  2. Web site: Description of the generation of various Power Stations . Bangladesh Power Development Board . 2003-03-31 . PDF . 2009-03-01.
  3. News: Chaotic scenario in power sector . The Daily Star . 2006-09-29 . 2009-03-01.
  4. News: Power outage on rise as gas shortage hits generation . The Daily Star . 2009-02-12 . 2009-03-01.
  5. News: Power plants frequently trip for shortage of gas supply . The Independent . 2001-05-15 . https://web.archive.org/web/20121023091748/http://www.highbeam.com/doc/1P1-45994395.html . dead . 2012-10-23 . 2009-03-01.
  6. News: Sangu depleting fast, can't lift gas after Sept 2009 . Shahnaj Begum . The Independent . 2009-03-01.