Question

The change in kinetic energy of the flowing fluid is often negligible for which of the following devices (check all that apply): Check All That Apply

1, Compressors
2. Nozzles
3. Heat Exchangers
4. Throttling Valves

Answer 1

The devices for which the change in kinetic energy of the flowing fluid is often negligible are heat exchangers and throttling valves.

Step-by-step explanation:

In fluid dynamics, Bernoulli's equation is used to analyze the conservation of energy in fluid flow.

According to Bernoulli's equation, if the pressure in a fluid is constant and the kinetic energy per unit volume of the fluid increases, the potential energy per unit volume of the fluid decreases.

Therefore, if the change in kinetic energy of the flowing fluid is negligible, it means that the potential energy per unit volume of the fluid remains constant.

Based on this, the devices for which the change in kinetic energy of the flowing fluid is often negligible are:

1. Heat Exchangers: Heat exchangers generally involve the transfer of thermal energy rather than significant changes in kinetic energy.
2. Throttling Valves: Throttling valves cause a decrease in fluid pressure without significant changes in kinetic energy.