The feature that creates multiple passes in a heat exchanger channel by dividing the flow is called divider plates or pass partitions.

Prepare for the EPRI Heat Transfer and Fluid Flow Test with flashcards and multiple-choice questions. Every question includes hints and explanations to help you ace your exam!

Multiple Choice

The feature that creates multiple passes in a heat exchanger channel by dividing the flow is called divider plates or pass partitions.

Explanation:
Dividing the flow inside a heat exchanger to create multiple passes is done with divider plates, also known as pass partitions. These plates run inside the shell and split the single flow path into several separate channels. As the fluid travels through one channel, it is redirected at the ends into the next channel, producing multiple sequential passes through the exchanger. This arrangement lengthens the flow path within the same shell diameter, enhancing heat transfer by increasing residence time and improving the chance for conduction and convection to work together. Baffles steer flow across the tube bundle to improve heat transfer and prevent short-circuiting, but they don’t partition the flow into separate passes within a channel. End caps simply close the ends of flow paths, and gaskets seal joints; neither creates multiple passes.

Dividing the flow inside a heat exchanger to create multiple passes is done with divider plates, also known as pass partitions. These plates run inside the shell and split the single flow path into several separate channels. As the fluid travels through one channel, it is redirected at the ends into the next channel, producing multiple sequential passes through the exchanger. This arrangement lengthens the flow path within the same shell diameter, enhancing heat transfer by increasing residence time and improving the chance for conduction and convection to work together.

Baffles steer flow across the tube bundle to improve heat transfer and prevent short-circuiting, but they don’t partition the flow into separate passes within a channel. End caps simply close the ends of flow paths, and gaskets seal joints; neither creates multiple passes.

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