Given the critical role played by natural gas in providing electricity, heat, and other essential services, better models are needed to understand dynamics of networks during extreme events. This paper aims at establishing appropriate fast simulation capture slow linepack depletion for ideal isothermal pipeline networks. Instead solving partial differential equations (PDE) on a large scale, thr...

The injection of pure hydrogen at a T-junction into horizontal pipe carrying natural gas is analysed computationally to understand the influence blending and geometry (diameter ratio, various 90° orientations) on mixing, for target 4.8–20% volume fraction blend. strongly inhomogeneous distribution within flow walls could indicate location potential material degradation including embrittlement e...

For longer distances, natural gas is transported through transit pipeline at high pressures. In a place of consumption or at passing into a lower pressure pipeline, the pressure of the gas must be reduced. In Iran, the common procedure of reducing pressure in natural gas station is using expansion valves, which causes the waste of large amount of energy. Combined heat and power (CHP) systems ha...

With the fast development of urban transit system and natural gas industry, the Stray Current Corrosion (SCC) for buried gas pipeline has become more frequent in china. In this study, principle and characteristic of Stray Current (SC) resulting from rail transit system were introduced. Presently available SC testing methods, equipment and determination standards in china were summarized. For an...

The ITE Project is a project that has 1800 km length and across the Turkey's land through east to west. The project of pipeline enters geographically from Iran to Doğubayazit (Turkey) in the east, exits to Greece from Ipsala province of Turkey in the west. This project is the one of the international projects in such scale that provides the natural gas of Iran and Caspian Sea through the Europe...

The present project focuses on the development of an inspection platform and a sensor suite for the detection of corrosion and mechanical damage in unpiggable pipelines. Much of the existing natural gas infrastructure was designed and built without inspection or pigging as an operational consideration. There are many physical obstacles in the piping system that makes the passage of conventional...