The Museum of HP Calculators


CHW (Hazen William Coefficient) for the HP 42S

This program is by Ken Delsnider and is used here by permission.

This program is supplied without representation or warranty of any kind. Ken Delsnider and The Museum of HP Calculators therefore assume no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of this program material or any part thereof.

Overview

Program Name CHW METRIC
Function Use to solve for any parameter using Hazen Williams formula.
Where:
CHW = Hazen William Coefficient
Q = Flow in cubic metres per sec
D = Diameter in mm
L = Length in metres
HL = Headloss/HGL in meters

Listing

00 { 81-Byte Prgm }
01>LBL "CHW"
02 MVAR "Chw"
03 MVAR "Q"
04 MVAR "D-mm"
05 MVAR "LEN"
06 MVAR "HL"
07 RCL "Q"
08 3.588
09 
10 RCL "D-mm"
11 1E3
12 
13 2.63
14 Y^X
15 
16 RCL "Chw"
17 
18 1.85
19 Y^X
20 RCL "LEN"
21 
22 RCL "HL"
23 -
24 END

Go back to the software library
Go back to the main exhibit hall