Determing flow of a closed loop parallel pumping system

In summary, the conversation is about determining the flow (GPM) of a closed loop parallel piping system. The speaker mentions that a pump in the system is rated at 4350GPM@50Hz but is currently pumping at 4500 GPM at 37Hz. They also mention that knowing the flow and pressure can help model the system curve to identify where it crosses the pump curves.
  • #1
David Gin
13
0
Hi all,

How would one go about determining the flow(GPM) of a closed loop parallel piping system.
I believe this has to do with the pressure intake and outlet of the pump as I have a pump in the mentioned system rated at 4350GPM@50Hz but it is pumping at 4500 GPM at 37Hz,

Thank you all for your time in advance.

Regards,
D
 
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  • #2
You mean you want to add a second pump in parallel? Knowing the flow and pressure - assuming it is a constant flow situation - enables you to model the system curve, the identify where that crosses the pump curves.
 

Related to Determing flow of a closed loop parallel pumping system

1. How do you determine the flow rate of a closed loop parallel pumping system?

The flow rate of a closed loop parallel pumping system can be determined by calculating the total flow rate of each pump and adding them together. This can be done by measuring the individual flow rates of each pump and then summing them up. Alternatively, the flow rate can also be determined by measuring the pressure drop across the system and using the system curve to calculate the flow rate.

2. What factors affect the flow rate of a closed loop parallel pumping system?

The flow rate of a closed loop parallel pumping system can be affected by various factors such as the pump performance characteristics, the system design, the fluid properties, and the operating conditions. Other factors that can impact the flow rate include the piping layout, the pump speed, and the presence of valves or other obstructions in the system.

3. How do you determine the optimal flow rate for a closed loop parallel pumping system?

The optimal flow rate for a closed loop parallel pumping system can be determined by considering the system design and operating conditions. This includes factors such as the desired flow rate, the available pump capacities, the system head requirements, and the required system efficiency. The optimal flow rate should also be within the operating range of the pumps to ensure reliable and efficient operation.

4. What is the purpose of a closed loop parallel pumping system?

A closed loop parallel pumping system is designed to provide a reliable and efficient means of circulating fluids in a closed loop system. The system typically consists of multiple pumps operating in parallel to meet the required flow rate and pressure head. This type of system is commonly used in HVAC systems, industrial processes, and other applications that require a continuous flow of fluids.

5. How do you troubleshoot flow issues in a closed loop parallel pumping system?

If there are flow issues in a closed loop parallel pumping system, the first step is to check the pump performance and ensure that all pumps are operating within their rated capacities. Other possible causes of flow issues include clogged filters, air pockets in the system, or incorrect pump speed. It is important to also check the system design and operating conditions to ensure they are within the recommended parameters. If the issue persists, it is best to consult a professional for further troubleshooting and maintenance.

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