Re: Converting hp42s programs Message #8 Posted by B Douglas on 16 Jan 2006, 11:26 p.m., in response to message #7 by Vieira, Luiz C. (Brazil)
Here is an example:
LINER = 5.5
STK LNT = 10
EFF. = .95
SPM = 90
This is for computing gallons per min(GPM):
Your inputs are as Follows: you state what your "liner" size is of the hole(5.5).
then your "STK LNT" stroke length of your pumps (10).
then your "EFF", stands for pump efficiency. ...one can enter (.95) and you would not have to multple by .01 to change 95 into .95)
then the calc asks for what "SPM" your thinking of running (strokes per min).
then the program takes your "liner" and Squares it. 5.5^2=30.25
then multiplies it by (.000243)=.00735075
then takes that and multplies it by your "STK LNT" & "EFF" = .69832125
It stores that number and gives it to you as "BBL/STK" (BBL/STK is .6982125)
Then it takes your "BBL/STK" and multiplies that by 42 = 2.93294925 or 2.93
It stores that number and gives it to you as "GAL/STK" (GAL/STK is 2.93)
then it takes your "SPM" your would like to run and multiplyes that by your "GAL/STK" = 263.96 or 263 GPM
It give you the answer as (Total GPM is 263)
If you need more examples they can be provided
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