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Power Loss due to Shafting :

Power Loss due to Shafting
Definition :
  • The power produced at the shaft, known as Shaft Power, is therefore reduced.
  • To put some approximate numbers to these losses, the most efficient 4‐stroke engines can be expected to show about 12.5% loss, and usually the loss is worse than that.
  • The pump shaft power is also called the absorbed power.
  • It is the power that needs to be actually applied at the coupling / shaft to get the considered flow and head.
  • It includes some losses and is therefore higher than the hydraulic power.
Uses :
  • The pump shaft transmits the drivetorque to the impellers to centrifugal pumps or to the displacement elements of rotary positive displacement pumps.
Formula :
  • The formula for the calculation is given below.
  • Power Loss due to Shafting = Unit Power Loss * Setting from Head Base to Top of Bowls.
  • Beside the formula this calculator works.
How to Calculate ?
  • First, Enter the Unit Power Loss. Then,
  • Second, Enter the Setting from Head Base to Top of Bowls. Then,
  • Click “Calculate” to get the result and then if you want to clear values Click “Reset” in addition to clear the values.
  • Finally, follow these steps to get the result.
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