... Abstract This paper identifies a problem with vapor cavity formation from valve closures in tank farm facilities, describes the diagnoses, and describes the process of analyzing and devising mitigations with hydraulic simulations. As background, when switching the product stream at a tank...

.... The design of the model, simulation results and any challenges, are described. excitation valve pipeline hamid bidmus psig 2528 barg simulating vibration simulator psig 2528 pressure fluctuation pipe excitation wave minimum pressure external excitation multiplier riser simulation...

... learning operation valve engineering PSIG 2529 Reduced Order Models for Optimal Gas Flows Criston Hyett 1*, Robert Ferrando 1, Jean Alisse 2, Laurent Pagnier 1, Igal Goldshtein 2, Lilach Sabban 2, Michael Chertkov 1 1Applied Mathematics, University of Arizona, Tucson, AZ, USA; 2NOGA, Haifa, Israel...

... segment. This is crucial for the stand-up pressure test as the system must be considered as Thermodynamically closed system [1]. Isolation of the pipe is usually done by closing mainline block valve at the beginning of the line and at the end of the line. Several considerations need to be made to safely...

... considerations in a familiar visual environment. controller simulating scada system measurement and control psig 2319 united states government valve midstream oil & gas scada scenario synergi application software training interface simulation operation pipeline rupture flowrate hms...

... Abstract Transient surge pressures of a system with parallel pipes are dependent on the simulation setup of the check valve closing times installed on the parallel pipes. Applying an identical closing time for the parallel check valves can create different surge pressures due to uneven flow...

... Abstract In transient hydraulic software, a check valve slam in a pipeline system is typically modeled via the valve closing time. Utilizing a closing time that is too low or too high may lead to underestimating or overestimating surge pressures due to check valve slam. Therefore, accurately...

... for presentation at the PSIG Annual Meeting to be held virtually on 3 marine hoses, the loading system operates in a tandem May 7 May 2021. configuration, where potential surge pressures are dominant upon closure of a valve. When the liquid flow is delivered This paper was selected for presentation by the PSIG...

... the resulting stresses. Events such as rapid PERC (powered emergency release coupling) closures, Emergency Shut Downs (ESDs), valve operations, and pump trips can all create transient effects. Consequences can include excessive surge pressures which in turn lead to increased pipe stresses and structural loads...

.... There are some seven block valve stations along the pipeline route. Figures Figure 1 andFigure 2 show the Pipeline Route and Schematic, respectively. Table 1 details the location and elevation of the valves and pumping stations. Note that all figures are repeated in a larger format at the end of this document...

... in flow rate due to leaks. The hydraulic simulation of these rapid transients requires a mathematical model capable of modelling the detailed rarefaction wave. This also enables the accurate analysis of the impact of sequential valve closures along the pipeline. To minimize potential flow interruptions...

... acknowledgment of where and by whom the paper was presented. Write Librarian, Pipeline Simulation Interest Group, 945 McKinney, Suite #106, Houston, TX 77002, USA [email protected]. ABSTRACT In order to prevent overpressure in a liquid pipeline system, typical mitigation measures include increasing the valve...

... to the compressor suction piping through a recirculation loop. When designing the piping system, designers may be conservative in adding a hot gas bypass valve to assist the anti-surge valve (ASV) in protecting the compressor unit from surge during a high-energy fast stop. The advantage of the additional valve...

..., the lack of specific non-linear elements that appear in the calculation model. This is the case with control systems (control valves) that are connected to measuring systems. Currently mounted measuring systems are based on ultrasonic measurement systems. Such measurement characteristic is that the flow...

... in dynamic pressure fluctuations throughout piping during AIV events can be made by changes in valve geometry and piping configurations. Results of CFD modeling and analysis demonstrate that computational analysis can be used to evaluate mitigation strategies and suggest that the use of a dampener...

... during the lifetime of the system. Dependent variables include the characteristics of the fluid, the piping geometry, pressure reducing valves, operating conditions and nature of the events, scenarios and flow rates. Various modeling tools exist to provide reliable predictions and cost-effective...

... the paper was presented. Write Librarian, Pipeline Simulation Interest Group, 945 McKinney, Suite #106, Houston, TX 77002, USA [email protected]. ABSTRACT When designing a piping system, normally the inherent control valve characteristics, e.g. linear or equal percentage valve opening/closing curves...

... measured in centipoise (CP). Kinematic Viscosity (ν) – is a measure of the time required for a given volume of liquid to flow through an orifice or restriction. Often measure in Centistokes (CST). relief valve heavy crude closure software psig 1606 heat transfer coefficient reservoir...

... Abstract Pipeline simulation tools have traditionally been used for modeling large pipeline networks; however, their quick solve times have made these tools attractive for many other applications ranging from process plant piping to valve manifolds. The governing equations and solver used...

... such as ore preparation, mine slurry handling, oil extraction, and utility, etc. Hydraulic surge analysis is important in the design and operation of these systems to assure economic and safe, reliable water supply. Common pipeline surge studies focus on transient scenarios caused by pump trip, valve closure...