scholarly journals Numerical Monitoring of Natural Gas Distribution Discrepancy Using CFD Simulator

2010 ◽  
Vol 2010 ◽  
pp. 1-23 ◽  
Author(s):  
Vadim E. Seleznev
Keyword(s):  
Natural Gas ◽  
Distribution System ◽  
Field Measurements ◽  
Identification Problem ◽  
Distribution Networks ◽  
Reference Points ◽  
Gas Distribution ◽  
Natural Gas Transmission ◽  
Minimum Discrepancy ◽  
Gas Supply

The paper describes a new method for numerical monitoring of discrepancies in natural gas supply to consumers, who receive gas from gas distribution loops. This method serves to resolve the vital problem of commercial natural gas accounting under the conditions of deficient field measurements of gas supply volumes. Numerical monitoring makes it possible to obtain computational estimates of actual gas deliveries over given time spans and to estimate their difference from corresponding values reported by gas consumers. Such estimation is performed using a computational fluid dynamics simulator of gas flows in the gas distribution system of interest. Numerical monitoring of the discrepancy is based on a statement and numerical solution of identification problem of a physically proved gas dynamics mode of natural gas transmission through specified gas distribution networks. The identified mode parameters should have a minimum discrepancy with field measurements of gas transport at specified reference points of the simulated pipeline network.

Computational Analysis of Natural Gas Delivery Discrepancy

2011 ◽  
Vol 88-89 ◽  
pp. 524-530
Author(s):  
Vadim Seleznev ◽  
Vladimir Kiselev ◽  
Sergey Pryalov
Keyword(s):  
Natural Gas ◽  
Gas Dynamics ◽  
Computational Analysis ◽  
Field Measurements ◽  
Identification Problem ◽  
Distribution Networks ◽  
Reference Points ◽  
Natural Gas Transmission ◽  
Minimum Discrepancy ◽  
Gas Supply

The article describes algorithm for optimization of discrepancies in natural gas supply to consumers. Numerical monitoring makes it possible to obtain computational estimates of actual gas deliveries over given time spans and to estimate their difference from corresponding values reported by gas consumers. Mathematical analysis of the discrepancy is based on a statement and numerical solution of identification problem of a physically proved gas dynamics mode of natural gas transmission through specified gas distribution networks. The identified mode parameters should have a minimum discrepancy with field measurements of gas transport at specified reference points of the simulated pipeline network.

scholarly journals Determination of high-pressure pipeline cyclization degree with exploratory technique

2018 ◽  
Vol 251 ◽  
pp. 03030
Author(s):  
Aleksey Klochko ◽  
Viktor Zhila
Keyword(s):  
Distribution System ◽  
Distribution Networks ◽  
Gas Distribution ◽  
Exploratory Technique ◽  
Pressure Pipeline ◽  
Long Time ◽  
High Pressure Pipeline ◽  
Maximum Reliability ◽  
Gas Supply

The article examines the issues of determining the network configuration, which ensures the maximum reliability of the gas distribution system. Rationally designed configuration of the gas distribution network with the adopted gas supply scheme can provide reliable operation for a long time. Results are recommended to be used in the design of gas distribution networks, as well as in determining the reserve for improving the reliability of the network for the adopted gas supply scheme for users.

A study of leakage from the UK natural gas distribution system

Energy Policy ◽  
1990 ◽  
Vol 18 (9) ◽  
pp. 809-818 ◽  
Author(s):  
Catherine Mitchell ◽  
Jim Sweet ◽  
Tim Jackson
Keyword(s):  
Natural Gas ◽  
Distribution System ◽  
Gas Distribution ◽  
The Uk

SERVICEABILITY OF NATURAL GAS DISTRIBUTION NETWORKS AFTER EARTHQUAKES

2013 ◽  
Vol 07 (02) ◽  
pp. 1350005 ◽  
Author(s):  
GIAN PAOLO CIMELLARO ◽  
ALESSANDRO DE STEFANO ◽  
OMAR VILLA
Keyword(s):  
Natural Gas ◽  
Distribution Network ◽  
Distribution Networks ◽  
Small Towns ◽  
Disaster Resilience ◽  
Gas Distribution ◽  
Gas Network ◽  
Resilience Index ◽  
Entire Network

The concept of disaster resilience has received considerable attention in recent years and it is increasingly used as an approach for understanding the dynamics of natural disaster systems. No models are available in literature to measure the performance of natural gas network, therefore, in this paper, a new performance index measuring functionality of gas distribution network have been proposed to evaluate the resilience index of the entire network. It can be used for any type of natural or manmade hazard which might lead to the disruption of the system. The gas distribution network of the municipalities of Introdacqua and Sulmona, two small towns in the center of Italy which were affected by 2009 earthquake have been used as case study. Together the pipeline network covers an area of 136 km2, with 3 M/R stations and 16 regulation groups. The software SynerGEE has been used to simulate different scenario events. The numerical results showed that, during emergency, to ensure an acceptable delivery service, it is crucial to guarantee the functionality of the medium pressure gas distribution network. Instead to improve resilience of the entire network the best retrofit strategy is to include emergency shutoff valves along the pipes.

scholarly journals The use of "absolutely reliable cameras" in the supply of natural gas to agricultural facilities

2020 ◽  
pp. 60-65
Author(s):  
Aleksey Konstantinovich Klochko ◽  
Viktor Andreevich Zhila
Keyword(s):  
Natural Gas ◽  
Reliability Index ◽  
Distribution Networks ◽  
Gas Distribution ◽  
Reliability Indices

The paper considers the supply of agricultural facilities with natural gas. The methodology and algorithm for determining the reliability index of gas distribution networks are presented. The concept of “absolutely reliable camera” is disclosed. Reliability indices and technical and economic characteristics of various schemes and configurations of gas distribution networks are determined. The issue of the use of "absolutely reliable cameras" for agricultural facilities is considered.  

scholarly journals Natural Gas Metering and its Accuracy in the Smart Gas Supply Systems

2020 ◽  
Vol 57 (5) ◽  
pp. 39-50
Author(s):  
J. Savickis ◽  
L. Zemite ◽  
I. Bode ◽  
L. Jansons
Keyword(s):  
Natural Gas ◽  
Distribution System ◽  
Successful Implementation ◽  
Smart Metering ◽  
The European Union ◽  
Smart Meters ◽  
Member States ◽  
Consumption Data ◽  
Supply Systems ◽  
Gas Supply

AbstractThe successful implementation of smart metering in the European Union (hereinafter – EU) depends on criteria that are mostly determined by the Member States themselves. These criteria cover the regulatory framework and legislation necessary for the establishment and functioning of the smart metering system, the fulfilment of technical and commercial conditions, as well as the security of data collection, archiving and use. The introduction of the smart metering in different Member States has started at different times. In Latvia, its reference point was 2004, when the goal was set to maximise the use of telemetry in the natural gas metering. Currently, in the Latvian natural gas distribution system about 85 % of all consumption data are automatically processed.One of the most important components of the smart natural gas metering is natural gas commercial metering devices (hereinafter – smart meters). They differ in both the principle and type of operation. Depending on the technology used, the metering range changes, and thus the accuracy of the measurements.The article addresses some issues of further successful implementation of smart metering in the Latvian natural gas sector, as well as the measurement accuracy for smart natural gas meters.

Flexible energy harvesting from natural gas distribution networks through line-bagging

2018 ◽  
Vol 229 ◽  
pp. 253-263 ◽  
Author(s):  
Ermanno Lo Cascio ◽  
Bart De Schutter ◽  
Corrado Schenone
Keyword(s):  
Energy Harvesting ◽  
Natural Gas ◽  
Distribution Networks ◽  
Gas Distribution
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