| Main Title |
Mathematical Modeling of Water Distribution Systems. |
| Author |
Gilma, Harold D. ;
Goodma, Maurice Y. ;
Metkowsk, Renette V. ;
|
| CORP Author |
General Electric Co., Philadelphia, Pa. Re-entry and Environmental Systems Div. |
| Year Published |
1971 |
| Report Number |
GE-71SD241; DI-14-31-0001-3162; OWRR-C-1725(3162); 00715,; C-1725(3162)(1) |
| Stock Number |
PB-204 116 |
| Additional Subjects |
( Water distribution ;
Systems engineering) ;
( Water pipelines ;
Mathematical models) ;
Networks ;
Management methods ;
Real time operations ;
Computer programming ;
Pipe flow ;
Pumps ;
Pressure control ;
Reviews ;
Manuals ;
Iteration ;
Automatic water distribution systems
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-204 116 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
243p |
| Abstract |
The major objective of the research was to develop a model suitable for simulation and study of real-time control of typical water distribution systems and eventual implementation in a process control computer. A unique approach was developed using an 'inverse solution' to track flow conditions in the field using a limited number of pressure and flow measurements. It uses a network model to iteratively adjust pipe flows to force agreement between calculated and measured pressures; total demand for the model is fixed by the measured pump and tank flows. The model is then used to simulate and evaluate the application of various control alternatives. A demonstration test case was run showing how this approach can be used to control pressure by turning available pumps on/off. The study also included a literature survey, convergence acceleration methods for calculating a network balance, sensitivity of the 'inverse solution' to model data uncertainties, and a compilation of guidelines for water distribution control. IBM 360 Fortran IV source program listings, sample test cases and instructions for using the program are included. |
| NTIS Title Notes |
Final rept.. |
| PUB Date Free Form |
Jul 71, |
| Category Codes |
13B; 60I |
| NTIS Prices |
PC A11/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326522570 |
| Origin |
NTIS |
| Type |
CAT |
