Most pipeline simulations are primarily concerned with performance of the pipeline, and the modeler typically assumes an idealized model of the control systems. The modeler assumes that control devices operate instantaneously and perfectly. This assumption is sufficient for a wide range of engineering simulation tasks, but inadequate for simulations used to training pipeline operators. For trai...

SAMEM (System for Analysis of Molecular Evolution Modes), a web-based pipeline system for inferring modes of molecular evolution in genes and proteins (http://pixie.bionet.nsc.ru/samem/), is presented. Pipeline 1 performs analyses of protein-coding gene evolution; pipeline 2 performs analyses of protein evolution; pipeline 3 prepares datasets of genes and/or proteins, performs their primary ana...

With the rapid construction of long-distance oil and gas pipelines, big pipeline network was gradually formed in China and its surrounding areas, therefore the management of pipeline production becomes increasingly complicated and difficult. In this paper, we propose a data model for pipeline production to support the planning, scheduling, distribution, metering, energy consumption, process tec...

One of the most important methods of transporting natural gas in Iran and other parts of the world is the utilization of a network of pipelines. Compression station and turbo compressor units play an important role in gas supply through pipelines. One of the primary concerns in these units is the reduction of fuel consumption. By cooling of exhaust gas from the source station, the pressure ...

Inverse Transient Analysis (ITA) is a powerful approach for leak detection of pipelines. When the pipe transient flow is analyzed in frequency domain the ITA is called Inverse Frequency Response Analysis (IFRA). To implement an IFRA for leak detection, a transient state is initiated in the pipe by fast closure of the downstream end valve. Then, the pressure time history at the valve location is...

When a natural gas pipeline ruptures, the adjacent upstream and downstream automatic control valves (ACV) should close quickly to prevent leakage or explosion. The differential pressure set point (DPS) at each valve location is the main criteria for value setting in ACV actions. If the DPS is not properly adjusted, the ACV may mistakenly close or it may not take any actions at a proper ti...

In this study, the seasonal rainfall distribution in Türkiye and its 25 main watersheds were estimated, potentials calculated analyzed. Empirical Bayesian kriging (EBK) ordinary (OK) methods applied interpolations. The calculations made through EBK, which provided highest estimation accuracy all seasons. winter, is season with rainfall, Türkiye’s depth 208.8 mm, volume 162.87 billion m3. summer...

A prototype least cost pipeline routing was performed using various data and GIS analysis. Ahvaz-Marun oil pipeline in south west of IRAN was chosen for development of the prototype. The Ahvaz-Marun pipeline was about 34-km and carries Ethan gas from Marun Petrochemical Company (MPC) to Ahvaz. A model was developed incorporating pipeline length, topography, geology, land use, stream, wetland, r...