Calculating Ejector - Q1, P1, V1, Q2, P2, V2

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In summary, the conversation is about a nozzle that uses the venturi effect to mix air from the atmosphere with water. The water flow is referred to as motive flow and the air flow as suction flow. The water flow enters a nozzle to increase its velocity and decrease pressure before entering a mixing chamber. The low pressure of the water flow causes air from the atmosphere to be sucked into the mixing chamber. The conversation concludes with a request for the relation equation between the flow rates, pressures, and velocities of the motive and suction flows.
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richinguyen
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Hi everyone, could you please help me in this:
There's a nozzle which use venturi effect to suck air from the atm and mix it with water. Say the water flow is motive flow (flow 1), and the air flow is suction flow (flow 2). The inlet water flow through a nozzle to increase its velocity (and thus decrease pressure), then enter a mixing chamber, the low pressure of the water flow cause air from the atm to be sucked to the mixing chamber through a second inlet. Say the motive flow (water) has flow rate Q1, pressure P1, velocity V1, and the suction flow (air) has flow rate Q2, pressure P2, velocity V2. What is the relation equation between them?
Thank you very much!
 
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FAQ: Calculating Ejector - Q1, P1, V1, Q2, P2, V2

What is an ejector and how does it work?

An ejector is a device that uses a high-pressure fluid to create a vacuum in a chamber, which then draws in a lower pressure fluid. This process is known as the Venturi effect and is based on the principle of conservation of energy.

How do I calculate the ejector parameters Q1, P1, V1, Q2, P2, V2?

To calculate the ejector parameters, you will need to know the fluid properties, the design of the ejector, and the operating conditions. These parameters can be calculated using equations based on the Bernoulli's principle and the continuity equation.

Can the ejector parameters be optimized for better performance?

Yes, the ejector parameters can be optimized by adjusting the design of the ejector and the operating conditions. This can lead to improved performance, such as increased efficiency and reduced energy consumption.

What factors affect the ejector parameters?

The ejector parameters are affected by several factors, including the fluid properties, the design of the ejector, the operating conditions, and the surrounding environment. Changes in any of these factors can impact the performance of the ejector.

How important is the accuracy of the ejector parameter calculations?

The accuracy of the ejector parameter calculations is crucial as it directly affects the performance of the ejector. Small errors in the calculations can lead to significant differences in the actual performance of the ejector. Therefore, it is essential to use precise and reliable data and equations to ensure accurate results.

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