What is the recommended design velocity for flow in an ejector system?

What is the recommended design velocity for flow in an ejector system?

• A. 1 - 3 feet per second (fps)
• B. 3 - 5 feet per second (fps)
• C. 5 - 10 feet per second (fps)
• D. 10 - 15 feet per second (fps)

Answer: (C)

In an ejector system, the recommended design velocity for flow typically falls within the range of 5 to 10 feet per second (fps). This range is optimal for ensuring effective operation of the ejector, which relies on the principle of velocity to create a suction effect. At these velocities, the system can efficiently move fluids while minimizing issues such as sedimentation and cavitation. Operating below 5 fps can lead to insufficient mixing and potentially result in the accumulation of solids or other undesirables within the system, while velocities above 10 fps can cause excessive wear and turbulence, which may affect the longevity and performance of the ejector components. Therefore, the selection of the 5 to 10 fps range balances efficiency and reliability, making it the recommended choice for ejector system design.

In an ejector system, the recommended design velocity for flow typically falls within the range of 5 to 10 feet per second (fps). This range is optimal for ensuring effective operation of the ejector, which relies on the principle of velocity to create a suction effect. At these velocities, the system can efficiently move fluids while minimizing issues such as sedimentation and cavitation.

Operating below 5 fps can lead to insufficient mixing and potentially result in the accumulation of solids or other undesirables within the system, while velocities above 10 fps can cause excessive wear and turbulence, which may affect the longevity and performance of the ejector components. Therefore, the selection of the 5 to 10 fps range balances efficiency and reliability, making it the recommended choice for ejector system design.