Author(s): Dario Guaycochea-Guglielmi; Gabriel Soto-Cortes
Linked Author(s): Gabriel Soto Cortes, Dario Eduardo Guaycochea Guglielmi
Keywords: No Keywords
Abstract: Surge relief valves are widely used for controlling overpressure due to transient phenomena. Simulating this device in hydraulic systems models requires considering the valve performance in different stages. For sizing or verification purposes the important issue is to ensure that the pressure may not exceed a maximum value, the relief pressure, when the maximum relief flow rate passes through the valve. In this case the valve should reach stable operation. Valves are simulated as an orifice, whose coefficient is adjusted in order to reproduce in the model the desired overpressure; the maximum flow rate will be the response of the system to this condition. Thus, parameters for sizing or verification are obtained, to be applied to algorithms presented by standards or specific manufacturers. The case study presented in this work is a 260 km length and 747 mm diameter oil pipeline system and a 12 km branch with same diameter, with three pumping stations.
Year: 2009