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Multiple Choice

Which combustion chamber type is primarily used on engines that include a centrifugal compressor?

The key idea is matching how the compressor delivers air to the burners. A centrifugal compressor pushes air outward in a radial flow split into several individual paths. A can-type combustor is built as multiple separate cylindrical chambers around the core, each with its own liner and fuel nozzle, fed from those individual air paths. This arrangement fits the centrifugal flow well, making manufacturing, maintenance, and sealing straightforward for engines that use a centrifugal compressor. In contrast, an annular combustor uses a single continuous ring around the core, which is more common when the compressor delivers air in a uniform annulus—typical of axial-flow designs. A can-annular design is a hybrid with several cans grouped around a common outer shell, also more characteristic of axial compressors. A V-type arrangement involves two angled rows of burners and is also more associated with certain axial configurations. So the combustor type best suited for engines with a centrifugal compressor is the can-type.

The key idea is matching how the compressor delivers air to the burners. A centrifugal compressor pushes air outward in a radial flow split into several individual paths. A can-type combustor is built as multiple separate cylindrical chambers around the core, each with its own liner and fuel nozzle, fed from those individual air paths. This arrangement fits the centrifugal flow well, making manufacturing, maintenance, and sealing straightforward for engines that use a centrifugal compressor.

In contrast, an annular combustor uses a single continuous ring around the core, which is more common when the compressor delivers air in a uniform annulus—typical of axial-flow designs. A can-annular design is a hybrid with several cans grouped around a common outer shell, also more characteristic of axial compressors. A V-type arrangement involves two angled rows of burners and is also more associated with certain axial configurations.

So the combustor type best suited for engines with a centrifugal compressor is the can-type.