Analysis and Control of Unsteady Flows in Natural Gas Piping Systems

1969 ◽  
Vol 91 (3) ◽  
pp. 331-338 ◽  
Author(s):  
M. A. Stoner
Keyword(s):  
Natural Gas ◽  
Method Of Characteristics ◽  
Unsteady Flows ◽  
Natural Gas Pipelines ◽  
Main Emphasis ◽  
Piping Systems ◽  
Transient Control ◽  
Computation Scheme ◽  
Piping Networks ◽  
And Control

In this paper the method of characteristics is used to provide a solution of the equations governing unsteady flow in natural gas pipelines. The validity of this approach is confirmed by comparison with experimental transients. The basic working equations are then adapted to a computation scheme which results in a transient control calculation procedure. The main emphasis is given to its use on gas piping networks.

scholarly journals Automatic Optical Measurement and Control of Benzene and Benzenoids in Natural Gas Pipelines

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7575
Author(s):  
Rossana Galassi ◽  
Christian Contini ◽  
Matteo Pucci ◽  
Ennio Gambi
Keyword(s):  
Natural Gas ◽  
Optical Measurement ◽  
Gaseous Mixture ◽  
Gas Pipelines ◽  
Natural Gas Pipelines ◽  
Para Xylene ◽  
Benzene Toluene ◽  
And Control ◽  
Measurement And Control ◽  
Related Compounds

The presence of benzene and similar aromatic compounds in civil environments is due to anthropic actions but also to natural sources. Natural gas consists of a gas mixture where benzene and related compounds are usually presents. Thus, the detection of these compounds in natural gas pipelines is of the utmost importance as well as the control of the concentration level, which must remain below the limits consented by law. In this regard, it is of striking interest to engineer devices able to detect these compounds by automatic and continuous remote control. Here, we discuss the application of an optical device designed for the measurement of sulfured odorizing agents in natural gas pipelines aiming at the detection and the measurement of benzene, toluene, and xylenes (BTX) in the same contexts. The instrument consists of a customized UV spectrophotometer connected to an automatic control system able to provide in-field detections of BTX through a continuous and remote check of the gaseous mixture. Relatively to benzene, the instrument is characterized by values of LOD (level of detection) and LOQ (level of quantification) equal to 0.55 and 1.84 mg/Sm3, respectively. Similar limits are found for toluene and xylenes (LOD of 0.81, 1.05, 1.41, and 1.00 mg/Sm3 for toluene, meta-, ortho-, and para-xylene, respectively).

Concept and principles of building an integrated system of management of activities of regional gas supply system entities Kaliningrad region

2019 ◽  
pp. 64-72
Author(s):  
G.G. Arunyants
Keyword(s):  
Control System ◽  
Natural Gas ◽  
Supply System ◽  
Integrated System ◽  
Software Complex ◽  
Geographically Distributed ◽  
Basic Solutions ◽  
Kaliningrad Region ◽  
And Control ◽  
Gas Supply

The results of analysis of problems of regulation of gas supply complex of Kaliningrad region and main ways to increase its efficiency, as well as basic solutions for creation of a software complex Т-GAZ-2 automated calculation of natural gas tariffs for ACS of gas supply system subjects, geographically distributed and information connected to the regional automated information and control system (RAIS).

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