Verification Case 18
PRODUCT: AFT Fathom
TITLE: FthVerify18.fth
REFERENCE: Igor Karassik, William Krutzsch, Warren Fraser, Joseph Messina, Pump Handbook, 2nd Ed., 1986, McGraw-Hill, Page 8.9-11, Example 1
FLUID: Pumped system with fluid of 0.8 specific gravity
ASSUMPTIONS: N/A
RESULTS:
| Parameter | Handbook | AFT Fathom |
| Pump head (feet) | 372 | 371.6 |
DISCUSSION:
The suction and discharge pipe head loss of 3 and 25 feet, respectively, was modeled as a fitting and loss K factor to obtain the proper head loss. Both pipes were modeled as frictionless. Thus the pipe lengths, which were not specified, do not affect the head loss. In addition, the viscosity of the fluid, which was not specified, does not affect the head loss since the pipe are frictionless. Thus a value of 1 lbm/hr-ft was assumed.
The 1000 gpm is modeled at the pump as an assigned flow pump.
The total pump head is shown in the AFT Fathom Pump Summary at the top of the Output window.
