Results 221 to 230 of about 9,674 (265)

Powering of Natural Gas Pipelines

Journal of Engineering for Power, 1972
An expression is developed for natural gas pipeline flow in terms of station power rather than the usual differences in the squares of the pressures, thus making it possible to directly evaluate the relative worth of power addition to existing lines or evaluate pipe versus power for new lines. Specific power requirements in terms of power per unit flow
openaire   +1 more source

Safe Purging of Natural Gas Pipelines

SPE Production Engineering, 1988
Summary When a newly constructed natural gas pipeline is put into service, it can be safely purged of air by injection of a slug of inert gas, such as N2. The method of sizing the required slug is based on a model of dispersion in turbulent flow in conjunction with flammability limits.
T. K. Perkins, J. A. Euchner
openaire   +1 more source

Failure analysis of a natural gas pipeline

Engineering Failure Analysis, 2018
Abstract In the present work, the failure investigation of a 30 in. diameter gas transmission pipeline (API 5L X-60 grade steel) has been described. The failure was due to a longitudinal crack developing in the centerline of longitudinal weld joint.
Hadi Shabani, Narges Goudarzi, Mahdi Shabani   +2 more
openaire   +1 more source

Natural Gas Pipelines and Monopoly

1989
The natural gas pipeline industry is no longer a protected natural monopoly. Regulation policy favors increased competition and open access to the transportation network. Entry barriers to the commodity are not sustainable with the emergence of an active spot market. Bypass of the local distribution facilities by heavy users is occurring.
openaire   +1 more source

Simulation of transients in natural gas pipelines

Journal of Natural Gas Science and Engineering, 2011
Abstract Cost-effective design and operations of natural gas pipelines require the evaluation of the dynamics of the transmission system, normally modeled as one-dimensional transient compressible fluid. Rapid changes in the flow conditions are present due to disturbances in the demand and operation of the controlling devices.
C.A. Dorao, M. Fernandino
openaire   +1 more source

Monkey‐Wrenching Natural Gas Pipelines

Natural Gas & Electricity, 2020
We are living in a time of high‐profile litigation regarding what had been, until the era of intense focus on climate change and greenhouse gas (GHG) emissions, one of the most noncontroversial elements of US interstate natural gas pipeline regulation: the certification of new interstate pipelines.
openaire   +1 more source

Failure analysis of a natural gas pipeline

Engineering Failure Analysis, 2016
Abstract A L390 natural gas pipeline exploded in 2011 in China. Macrofracture examination, thickness measurement, chemical composition analysis, metallographic inspection, mechanical property testing, fracture scan electronic microscopy examination and environment analysis were conducted to the burst pipeline. The results showed that Stress Corrosion
Yafan Zhao, Mingda Song
openaire   +1 more source

The Trans-Mediterranean natural gas pipeline

International Journal of Project Management, 1984
The main characteristics of a large and complex project involving the coordination of several types of resource are described. Flexibility and adaptability were required in the management of the project, because of the successive decision points deriving from the results of the research phases.
Riccardo Albonetti, Luigi Manganelli
openaire   +1 more source

Determination of radon in natural gas pipelines

Journal of Radioanalytical and Nuclear Chemistry, 2015
The aim of this study was to develop the methodology for collection and analysis of radon from a natural gas pipeline. Activated charcoal was used as collection media. Two methods were designed for collecting radon gas samples from onshore and offshore production sites. For onshore sites a continuous gas sampling method from the pipeline was developed.
S. Chanyotha, C. Kranrod, P. Pengvanich, P. Sriploy   +3 more
openaire   +1 more source

Computation of Natural Gas Pipeline Hydraulics

Industrial & Engineering Chemistry Research, 2014
When there was a lack of computing power, several approximate formulas (Weymouth, Panhandle, AGA, etc.) were developed to obtain pressure drop in gas pipelines, which are in many instances still be...
Miguel Bagajewicz, Gary Valtinson
openaire   +1 more source