... contain substantial amounts of impurities that affect its thermophysical behavior. Several equations of state or models exist that calculate the thermophysical properties of CO 2 -rich mixtures. While the accuracy of the chosen thermodynamic model is crucial, speed and ease of implementation is also...

..., measurement drift, calibration problems, measurement spikes, and stuck instruments. However, using an approach of combining data validation techniques, state estimation algorithms and meticulous pipeline configuration tuning, we were able to implement a pipeline simulation system having optimum accuracy...

... fuzzy logic equation piping simulation approximation slug catcher piping design psig 2410 accuracy expansion pipeline numerator artificial intelligence denominator frequency matt lubomirsky psig 2410 novel transfer function approximation cody allen roman zamotorin...

... accuracy of the model, allowing it to adapt to varying conditions. Furthermore, it moves away from the necessity of employing multiple models, each fine-tuned with distinct coefficients, to accommodate diverse environmental circumstances effectively. pipeline leak detection accuracy algorithm...

..., scheduling, and future expansions. compressed natural gas (cng) psig 2416 modeling & simulation southwest oil operation accurate simulation model accuracy zhixiang dai simulation petro china southwest oil simulation software yuanyuan tian guangtao yang customer ying liu jay zhang...

... role in accurate CO2 pipeline simulation and this paper explores the important equations of state employed for the modelling of CO2 behaviour. The paper compares the equation accuracies against an operational case study pipeline. These equations of state include the Peng Robinson, GERG 2004, BWRS...

... of hydrogen pipelines. Using a currently operational pure hydrogen pipeline the accuracies of different equations of state will be investigated. These equations will then be compared against different hydrogen blends and hydrogen synthetic fuels to determine their suitability. The benefits of the real-time...

..., the thermodynamic equilibrium conditions for various gas mixtures are gathered from the literature. This is done to maintain the accuracy with the real-time conditions that could encounter in the pipelines. These data points are used for the development of a statistical model. This model is validated...

... to address a topical problem facing many TSOs. INTRODUCTION AND BACKGROUND The potential for real-time transient models (RTTM) of gas pipelines and the concept of gas composition tracking in such models is well known. Composition tracking is essential for RTTM accuracy and this has been the driver behind...

... found useful in the context of diffusion problems to studying flow in pipeline networks. Selecting a time integration method involves a balance between accuracy, efficiency, and simplicity; those considerations are involved in the examination of the method studied here. STEP DOUBLING FOR ORDINARY...

... Abstract Pipeline simulation always brings up the question of which mesh (or "knot spacing") to use. More mesh points mean improved accuracy, but also slower simulation. In addition, if the spatial mesh isn't chosen appropriately for the time step (which may itself be changing), the model can...

... different portions of the risk spectrum but no single technology will mitigate all of the risk as illustrated in Figure 1. reliability decision tree pressure wave detection leak detection methodology accuracy sensitivity upstream oil & gas leak detection technology psig 1502 artificial...

... differential equations of hyperbolic type is conducted. The appropriateness of the schemes with respect to accuracy, programming effort, flexibility of the incorporation of nonpipe elements is evaluated. The main goal of the analysis is to choose the most effective scheme for transient simulation of large...

... on certain parameters. In this paper, artificial neural networks (ANN) are used to predict future hourly natural gas loads with up to 95% accuracy. The ANN model is trained based on multiple parameters, for example, gas load historical pattern, weather pattern, calendar effect, etc. for different seasonal...

... production monitoring production control pressure curve mathematical modeling air emission reservoir surveillance psig 1302 discharge accuracy climate change pressure drop detection equation disturbance leak detection system chemical spill Copyright 2013, Pi peline Simulati on Interest Gr...

... Time Transient Model Statistical analysis Negative pressure wave and Fiber Optics. After a comparison of these technologies, the following performance figures will be addressed: Minimum leak detectable Detection time Leak location accuracy False alarm rate. To achieve...

... available code demonstrated to be able to predict pressure drop and temperature development with high accuracy. Viscosity is considerably less important but starts to influence frictional pressure drop at lower Reynolds number Correct prediction of viscosity will be more important in transient...

... Notification of off-specification deliveries A comparison of some of the characteristics and typical settings of the new PMS and the previous system are presented to add understanding of how these benefits arise. To illustrate how the required accuracy of the PMS can be achieved without any subsea...

... pipeline and a few wrong turns in the decision making process can end up being very costly. It is easy to say " I want a leak detection system capable of detecting a ten gallon spill in less than a minute, locating it within an accuracy of 10 feet ". It might even be possible to install a system that can...

... ABSTRACT: GASSCO transports approximately 100 billion standard cubic meters (3.5 10·MMSCF) of Norwegian natural gas to the European market through nearly 8000km (5000 miles) of large diameter high-pressure subsea pipelines each year. The two key accuracy requirements of the pipeline network...