Question
Download Solution PDFThe expression for the specific speed of pump-
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Specific speed:
- It is defined as the speed of a geometrically similar pump that would deliver one cubic meter of liquid per second against the head of one meter.
- It is used to compare the performances of 2 different pumps.
- Its dimension is M0L3/4T-3/2 and given by the formula and is given by
Where NS = Specific speed, Q = Discharge, H = Head under which the pump is working, N = Speed at the pump is working.
Additional Information
There is also one dimensionless specific speed, which is called shape number, and given by
Where ω = Angular speed of the pump, Q = Discharge, H = Head, g = Acceleration due to gravity
Last updated on Mar 26, 2025
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