Pump running at 3280 rpm with delivery of 100 litre per minute.
Inlet pressure head .500 m. = 1.47 foot

1.47 x .45 psi per foot = .66 psi

Outlet pressure head 2.900 m. = 8.8 feet

8.8 x .45 psi per foot = 3.96 psi

8 feet x .45 or 3.2 psi.

This is inline with the pressure head of 1.500 metre measured in the

block tappings of my graph which is around .6 of the block curcuit.

5 feet x .45 or  2.25 psi.
Don

Don, something does not add up here.  For a rough check, it takes 2 feet of
water to get 1 psi. 8 feet should give you about 4 psi

I think you need to multiply, not divide.  It should come out roughly 0.7
psi.
Pressure differentail across block 2.400 m or lets say 4 lbs. 

5 feet gives about 2.5 psi.  (in my simple mind).
Always with an opinion, but not always right.

Bob Darrah

My calculation conversions and my mistake Bob. Not Don's.
You are correct. Same mistake I made in my pump HP program.
I was dividing instead of multiplying.
I corrected it above. Not doing too good this morning.

Paul Lamar

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.