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

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Presentation transcript:

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

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

Auxiliaries allow more heat to be produced. 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.

Power Output MW Turbine Steam Flow Temperature and Pressure 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

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

Section 2.4– Boiler Auxiliaries Igniters - Gas

Section 2.4– Boiler Auxiliaries Igniters - Oil

Igniters - Combination Section 2.4– Boiler Auxiliaries Igniters - Combination

Section 2.4– Boiler Auxiliaries Fans –Boiler Supply

Section 2.4– Boiler Auxiliaries Fans –Boiler Exhaust

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

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

Section 2.4– Boiler Auxiliaries Crushed Coal

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

Section 2.4– Boiler Auxiliaries Stoker

Section 2.4– Boiler Auxiliaries Questions?

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