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Posted for "Ed Anderson" <eanderson@carolina.rr.com>:
Bill, is the second chart showing approx 0.175 HP required for 20 gph flow?
and given a 50% efficiency for an electric motor the actually HP required by
an electric motor around 0.35 HP? If so that is still within the ball park
of the EWP.
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
The second page is the energy required to pump water according to the pump
curve for 5594 rpm. As you can see, at zero flow, the required *pumping*
energy is very low, rises as flow rises, and drops at high flows since there
is less head developed. All this assumes my equations for HP are correct.<<<
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