Which heat exchanger type contains divider plates or pass partitions in the channel that separates the fluid entering and leaving the HX, and the number of passes for the tube side fluid can be increased by divider plates on the channel head?

Which heat exchanger type contains divider plates or pass partitions in the channel that separates the fluid entering and leaving the HX, and the number of passes for the tube side fluid can be increased by divider plates on the channel head?

• A. Multi-Pass HXR
• B. Shell and Tube Type Heat Exchanger
• C. U-Tube
• D. Straight Tube

Answer: (A)

Dividing the flow path to create multiple passes is a way to extend the flow length through the heat exchanger and increase the opportunities for heat transfer. A divider plate or pass partition in the channel separates the liquid that enters from the liquid that leaves, forcing the fluid to follow a longer, multi-turn route through the exchanger rather than going straight through in a single pass. By adding divider plates at the channel head, the tube-side (or shell-side, depending on the design) flow can be split into additional distinct passes. Each added pass means the same surface area is used more times, which can improve heat transfer or tailor the temperature change and pressure drop to meet process needs. This capability to adjust the number of passes through partitioning is the defining feature of a multi-pass heat exchanger. Other exchanger types rely on different internal structures—such as baffles to steer shell-side flow or fixed tube configurations—rather than divider plates in the channel head to alter the number of passes.

Dividing the flow path to create multiple passes is a way to extend the flow length through the heat exchanger and increase the opportunities for heat transfer. A divider plate or pass partition in the channel separates the liquid that enters from the liquid that leaves, forcing the fluid to follow a longer, multi-turn route through the exchanger rather than going straight through in a single pass.

By adding divider plates at the channel head, the tube-side (or shell-side, depending on the design) flow can be split into additional distinct passes. Each added pass means the same surface area is used more times, which can improve heat transfer or tailor the temperature change and pressure drop to meet process needs. This capability to adjust the number of passes through partitioning is the defining feature of a multi-pass heat exchanger.

Other exchanger types rely on different internal structures—such as baffles to steer shell-side flow or fixed tube configurations—rather than divider plates in the channel head to alter the number of passes.