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Power Plant Construction and QA/QC Section 2.4– Boiler Auxiliaries

Engineering Technology Division. Power Plant Construction and QA/QC Section 2.4– Boiler Auxiliaries. Section 2.4– Boiler Auxiliaries. Overview. Introduction Burners Igniters Fans Air Heaters Fuel Prep and Handling Pulverized Coal Stokers. Section 2.4– Boiler Auxiliaries. Introduction.

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Power Plant Construction and QA/QC Section 2.4– Boiler Auxiliaries

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  1. Engineering Technology Division Power Plant Construction and QA/QC Section 2.4– Boiler Auxiliaries

  2. Section 2.4– Boiler Auxiliaries Overview • Introduction • Burners • Igniters • Fans • Air Heaters • Fuel Prep and Handling • Pulverized Coal • Stokers

  3. Section 2.4– Boiler Auxiliaries Introduction • Auxiliaries allow more heat to be produced. • Minimizing heat loss is key to maximizing output. • Efficiency is the key to generation. • Combustion needs oxygen so airflow is key to heat production. • Fuel type and size is key to combustion rate. • Sizing of Auxiliaries is critical.

  4. Section 2.4– Boiler Auxiliaries Introduction Power Output MW Turbine Steam Flow Temperature and Pressure Boiler Capacity Auxiliaries Under Capacity Over Capacity < Desired MW Maximum Operation Wasted Costs Wasted Energy

  5. Section 2.4– Boiler Auxiliaries Burners • Fuel • Natural Gas • Oil • Coal Dust • Quantity • Boiler Size

  6. Section 2.4– Boiler Auxiliaries Igniters - Gas

  7. Section 2.4– Boiler Auxiliaries Igniters - Oil

  8. Section 2.4– Boiler Auxiliaries Igniters - Combination

  9. Section 2.4– Boiler Auxiliaries Fans –Boiler Supply

  10. Section 2.4– Boiler Auxiliaries Fans –Boiler Exhaust

  11. Section 2.4– Boiler Auxiliaries Air Heaters Air Temperature Air Density Boiler Heat Boiler Efficiency

  12. Section 2.4– Boiler Auxiliaries Fuel Prep and Handling - Coal

  13. Section 2.4– Boiler Auxiliaries Crushed Coal

  14. Section 2.4– Boiler Auxiliaries Pulverized Coal 50 um - .002”

  15. Section 2.4– Boiler Auxiliaries Stoker

  16. Section 2.4– Boiler Auxiliaries Questions?

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