A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Minimizing waterhammer transients in a series pipeline
The minimization of waterhammer pressures in simple pipelines has been studied using dynamic programming and as a minimax problem. The results of both these techniques are very similar and suggest that the optimal policy of valve closure is one of closing the valve in steps at time 0, 2L/C, 4 L/C, etc., and the valve remaining more or less at a constant opening between these times. For simpler valve closure policies, e.g., linear two-stage, three-stage, etc., other optimization techniques have been used successfully. Techniques to operate a valve in such a way as to limit the pressure to a preselected maximum are also available. These techniques, known as valve stroking, have been applied to many complicated piping systems. However, the optimum techniques have been applied only to a simple pipeline between a reservoir and a valve. This paper extends these techniques to series pipelines. In doing so, some unusual and interesting aspects of the problem are encountered.
Minimizing waterhammer transients in a series pipeline
The minimization of waterhammer pressures in simple pipelines has been studied using dynamic programming and as a minimax problem. The results of both these techniques are very similar and suggest that the optimal policy of valve closure is one of closing the valve in steps at time 0, 2L/C, 4 L/C, etc., and the valve remaining more or less at a constant opening between these times. For simpler valve closure policies, e.g., linear two-stage, three-stage, etc., other optimization techniques have been used successfully. Techniques to operate a valve in such a way as to limit the pressure to a preselected maximum are also available. These techniques, known as valve stroking, have been applied to many complicated piping systems. However, the optimum techniques have been applied only to a simple pipeline between a reservoir and a valve. This paper extends these techniques to series pipelines. In doing so, some unusual and interesting aspects of the problem are encountered.
Minimizing waterhammer transients in a series pipeline
Minimierung der durch Wasserdruckstoss verursachten instationaeren Zustaende in einem Rohrleitungsnetz
Contractor, D.N. (author) / Conway, A.B. (author)
Forum on Unsteady Flow - 1986, the Winter Annual Meeting of the ASME ; FED-39 ; 16-18
1986
3 Seiten, 3 Bilder, 1 Tabelle, 7 Quellen
Conference paper
English
| TIBKAT | 1955
Condensation Induced Waterhammer
| British Library Online Contents | 1999
| Online Contents | 1994
Pumping, Equalization, and Waterhammer
| Wiley | 2024
Waterhammer in pressure conduits
| TIBKAT | 1970