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Techno-economic evaluation of revamping of coal-fired power plants in India

Author

Listed:
  • Animesh Dutta
  • Shantanu Dutta
  • Prabir Basu

Abstract

A techno-economic feasibility study has been conducted to investigate the revamping of two 32 MWe Pulverised-Coal (PC) boilers with a number of firing options. The options investigated were: (1) conventional PC revamping, (2) replacement with a new PC boiler, (3) PC to Circulating Fluidised Bed (CFB) revamping, (4) replacement with a new CFB boiler, and (5) Bubbling Fluidised Bed (BFB) revamping. The study reveals that: (i) CFB revamping of the boilers is technically feasible and economically viable; (ii) Performance improvement of the plant is significant in terms of such indices as plant load factor, forced outage and auxiliary oil consumption; (iii) Significant improvement in emissions performance due to the reduction in emissions of NOx and fly ash is projected; (iv) CFB revamping option gives the highest return on investment compared to alternatives. Finally, to demonstrate the technical soundness and viability of the special design used in this revamping, a subscale CFB boiler has been designed and built at another power plant.

Suggested Citation

  • Animesh Dutta & Shantanu Dutta & Prabir Basu, 2006. "Techno-economic evaluation of revamping of coal-fired power plants in India," International Journal of Global Energy Issues, Inderscience Enterprises Ltd, vol. 26(1/2), pages 6-42.
    • Handle: RePEc:ids:ijgeni:v:26:y:2006:i:1/2:p:6-42
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