How Do You Calculate the Power Required for a Water Compressor?

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To calculate the power required for a water compressor, it's important to clarify that water is largely incompressible, suggesting the term "water pump" may be more appropriate. The power can be calculated by multiplying the pressure by the flow rate, while accounting for an efficiency factor of approximately 75%. The discussion also raises the possibility of the device being a pressure washer, which operates on similar principles. Accurate unit conversion is essential in these calculations. Understanding these fundamentals is crucial for the assignment involving high-pressure water production.
bluemoon2188
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Hi all,

I am involve in a group assignment where a water compressor will be used to produce high pressured water.

I would like to know if there a formula to calculate the amount of power needed to operate the water compressor.

Thanks
bluemoon2188
 
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Welcome to PF.

I've never heard of a "water compressor". Water is largely incompressible. Do you mean water pump? Multiplying pressure and flow rate gives you power - and figure 75% efficiency (and make sure your units are right!).
 
russ_watters said:
Welcome to PF.

I've never heard of a "water compressor". Water is largely incompressible. Do you mean water pump? Multiplying pressure and flow rate gives you power - and figure 75% efficiency (and make sure your units are right!).

Hi russ-watters

Thanks for the reply.

What you have said makes sense. A pump should provide an increase in water pressure.

Thanks for the reminder.
bluemoon2188
 

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