Before combustion can occur, the combustion...

Question 1 of 270705eccef9fbacbc34ba4d46b20

Before combustion can occur, the combustion air must be delivered to the combustor at a high-pressure and low-velocity. High-velocity, low-pressure air is converted to high-pressure, low-velocity air at what part of a centrifugal type compressor?

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Question 1 of 27070

🔍 Key Concepts

• Function of an impeller in a centrifugal compressor • Purpose of the diffuser section in compressors and pumps • Relationship between velocity, pressure, and cross-sectional area in a flow (Bernoulli principle)

💭 Think About

• Which component of a centrifugal compressor is mainly responsible for increasing air velocity and imparting kinetic energy to the airflow? • After the air leaves the high-speed rotating section, where in the flow path would you expect the air to slow down so that its kinetic energy can be converted into pressure energy? • Think about where the flow passage area increases—what does that do to velocity and pressure?

✅ Before You Answer

• Identify which part has increasing flow area that slows the air down. • Confirm which component’s main role is energy conversion from velocity (kinetic) to pressure (static), not just turning or directing flow. • Eliminate choices whose primary function is guiding or collecting air rather than changing velocity into pressure.