In gas turbine terminology, the symbol Pb refers to burner pressure measured at which location?

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Multiple Choice

In gas turbine terminology, the symbol Pb refers to burner pressure measured at which location?

Pb is the pressure at the burner entry inside the combustion chamber. This is the pressure the fuel-air mixture sees as it enters the burners and begins burning, so burner pressure is defined at the combustion chamber region rather than upstream components. The diffuser and NGV paths are upstream of the burner, and the compressor’s discharge pressure is measured before any combustion occurs; that pressure is not what Pb represents.

Pb is the pressure at the burner entry inside the combustion chamber. This is the pressure the fuel-air mixture sees as it enters the burners and begins burning, so burner pressure is defined at the combustion chamber region rather than upstream components. The diffuser and NGV paths are upstream of the burner, and the compressor’s discharge pressure is measured before any combustion occurs; that pressure is not what Pb represents.

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