Friction loss, Flow and pressure of Head Pump

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Comprehensive Guide To The Head Of A Pump
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• The head is a measurement of the amount of
  pressure. The essential thing to remember here is
  the pressure required to successfully deliver the
  fluid pumped at the desired flow, as the amount
  of pressure needed to pump water in a home is
  somewhere between 40 to 60 psi.

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Factors Deciding The Head of The Pump

• At home, if you are filling a reservoir, you will
  not need any pressure at all because you are just
  looking to get the water in the tank. In most
  sewage applications where solids handling is
  involved, there is not necessarily a requirement
  for pressure in most cases like effluent sewers
  and on-site sewer systems where you may have a
  pressurized drain field.
• You are certainly going to be looking at some
  requirements that involve pressure so as not to
  overcomplicate things the pressure is pressure.
  So the desired flow is the amount of fluid that
  you need to be delivered, how many gallons per
  minute is generally. There will be only two
  primary factors in dealing with pump heads in
  their most basic form, so you have got the lift,
  and you have got the loss.

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Elevation Difference

• So, let's talk about lift as it boils down. It is
  essentially different from point A to point B,
  from where the pump is located to where the fluid
  needs to be pumped. That is typically the
  elevation difference now. It has no bearing on
  the distance between A point and B point. But
  only the vertical difference, so one foot
  vertically would be one foot of head regardless
  of if the pump is a hundred feet away from the
  discharge location.
• A one-foot rise is a one-foot rise. So it's
  essential to realize that when calculating a list
  or the elevation. You are only considering the
  height differential between where the pump sits
  and where the discharge location will be.

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Flow and Pressure

• These are the other two components that tie into
  the second factor when talking about flow. The
  pressure flow is the amount of fluid that you
  need to be delivered at a particular location and
  in many sewer applications. You are going to be
  basing your flow on the amount of inflow.
• So how much waste is going into the tank or basin
  and then sizing the pump based on how much is
  expected to need to be pumped? In a successful
  pump application for delivering water to a home.
  You may only be basing it on how much water the
  house is going to use. Any irrigation or anything
  on top of that pressure. Once you know them, then
  you can determine the friction loss.
• A pump with 5m of the head will push fluid up the
  pipe from the discharge outlet.
• Consider that the higher the liquid in the tank,
  the higher the pump value. A pump always produces
  pressure. So, however, it can pump water at a
  higher rate and might produce a higher head. For
  example, a vertical pipe forces more water from
  one side to another. This process is called high
  head water pumps.
• As we know, there are several pump types, like
  centrifugal, axial, positive displacement, and
  more. Radial impellers are used for high head
  water pumps.

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Friction Loss

• It is otherwise called head loss. It is the
  second factor contributing to your total head or
  total dynamic head in many cases.
• When it comes to friction loss, what to be
  referred to is the amount of energy that is
  absorbed as the fluid is transported through the
  piping and plumbing in the fittings. And Forth so
  as the liquid travels through the pipe. It drags
  on the walls of the pipe and drags on the
  fitting. That creates resistance, and that
  resistance you need to compensate to deliver the
  fluid at the desired flow and pressure properly.

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What Will Be The Total Length of the Pipe?

• If you have got 100 feet of pipe, that is
  regardless of any elevation changes. That is
  factored in entirely separate from your friction
  loss characteristics. You have to make sure that
  you tally up any pipe lengths. You must know what
  material the pipe is? Count up all of your
  fittings, and then you are going to the friction
  loss worksheet, where there are plenty of
  friction loss calculations available.

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Sum

• Whatever the calculation you know comes up with,
  you have to add that to your other calculation to
  get your total head at a specific flow. We base
  the friction loss on the flow through the pipe
  the flow increases, and the friction factor
  increases.
•  When you are doing this calculation, it is only
  based on the specific flow you have targeted. It
  would be best if you took your elevation. Then
  add your friction loss and our pressure. The main
  thing is elevation is already going to be in
  feet.
• In most cases, it's not converted to feet. Your
  pressure needs to be converted to feet.
• To convert pressure to feet, one psi equals 2.31
  head feet. You take whatever your desired
  pressure is multiplied by 2.31, and then you will
  have that numbernow converted to feet, so you
  take your elevation. Add your pressure in feet,
  then add your friction loss in feet.
• Finally, you will have the total feet head that
  there's a need for that specific location to
  calculate the head.
• It is all that you will know for a basic
  conceptual understanding. There will be little
  more depth involved when accounting for
  specialized systems but your day-to-day head
  calculations.
•  A pump always produces pressure. So, however, it
  can pump water at a higher rate and might produce
  a higher head. For example, a vertical pipe
  forces more water from one side to another. This
  process is called high head water pumps. The
  total head measure is a measure that removes the
  high head water pumps.
•  As we know, there are several pump types, like
  centrifugal, axial, positive displacement, and
  more. Radial impellers are used for high head
  water pumps.

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Conclusion

• This comprehensive guide of the head of a pump
  will make you understand all about the pump's
  head. Since there are several types of pumps, you
  might get confused in choosing the most
  appropriate pump for you. Pumps are just used to
  transfer fluid but in different styles.

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