SaadAly
Mechanical
- Jul 29, 2014
- 6
Hi Guys,
I am new here and just been looking to find some guidelines to have a consevative minimum flow for pumps. I came across this thread and there is a table by JJPellin which uses Suction Specific Speed and Specific Speed to define the minimum flow at percentage of BEP. So I have two questions in particular:
What are the units used for in calculating Suction Specific Speed and Specific Speed?
Do you use NPSHR for water or do you determine the NPSHR for the liquid that is being pumped?
Thank you.
P.S I am having relibility issues operating a turbine driven pump in parallel to an electric motor driven pump with both operating simultaneously. Its quite similar to this thread
I am new here and just been looking to find some guidelines to have a consevative minimum flow for pumps. I came across this thread and there is a table by JJPellin which uses Suction Specific Speed and Specific Speed to define the minimum flow at percentage of BEP. So I have two questions in particular:
What are the units used for in calculating Suction Specific Speed and Specific Speed?
Do you use NPSHR for water or do you determine the NPSHR for the liquid that is being pumped?
Thank you.
P.S I am having relibility issues operating a turbine driven pump in parallel to an electric motor driven pump with both operating simultaneously. Its quite similar to this thread