scholarly journals Application of the resonant energy separation effect at natural gas reduction points in order to improve the energy efficiency of the gas distribution system

2021 ◽  
Vol 248 ◽  
pp. 253-259
Author(s):  
Andrei Schipachev ◽  
Alena Dmitrieva
Keyword(s):  
Energy Efficiency ◽  
Natural Gas ◽  
Distribution System ◽  
Resonance Effect ◽  
Reduction Process ◽  
Energy Separation ◽  
Gas Temperature ◽  
Gas Distribution ◽  
Complete Replacement ◽  
Distribution Station

Maintaining the gas temperature and the formation of gas hydrates is one of the main problems in the operation of gas pipelines. Development and implementation of new effective methods for heating the gas during gas reduction will reduce the cost of gas transportation, solve the problem of resource and energy saving in the fuel industry. Study is aimed at increasing the energy efficiency of the natural gas reduction process by using a resonant gas heater to maintain the set temperature at the outlet of the gas distribution station (GDS) and prevent possible hydrate formation and icing of the station equipment. Paper considers the implementation of fireless heating of natural gas and fuel gas savings of heaters due to the introduction of a thermoacoustic reducer, operating on the basis of the Hartmann – Sprenger resonance effect, into the scheme of the reduction unit. By analyzing the existing methods of energy separation and numerical modeling, the effectiveness of the resonant-type energy separation device is substantiated. Modification of the reduction unit by introducing energy separating devices into it will allow general or partial heating of natural gas by its own pressure energy. Developed technology will allow partial (in the future, complete) replacement of heat energy generation at a gas distribution station by burning natural gas.

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

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.

scholarly journals PROBLEMS ISSUES OF REGULATORY PROVISION OF PRODUCTION ACTIVITY OF NATURAL GAS MARKETS

2019 ◽  
pp. 48-58
Author(s):  
A. M. Klyun ◽  
G. M. Kogut ◽  
M. O. Karpash ◽  
О.М. Karpash
Keyword(s):  
Natural Gas ◽  
Distribution System ◽  
Distribution Systems ◽  
Gas Distribution ◽  
Normative Documents ◽  
Natural Gas Market ◽  
Supply And Distribution ◽  
International Trends ◽  
Gas Market ◽  
The Eu

The formation of the modern Ukrainian natural gas market is accompanied by profound transformations of the national gas infrastructure: the creation and operation of new market operators, the redistribution of infrastructure facilities, the development and implementation of new requirements for the effective functioning of the entire system. At the same time, this requires from all parties a verified and balances strategy for the optimal implementation of all the obligations that Ukraine has undertaken to fully implement the requirements of the EU Third Energy Package, which aims to create an effective natural gas market based on the principles of free competition, proper consumer protection and security of supply. Despite the fact that the capacity of the Ukrainian gas transmission system and gas storages is one of the largest in Europe, the unbanding process has caused a number of threats in the area of regulatory support for production activities, requiring the consolidation of specialists' efforts to form optimal solutions to the problems that have arisen. In addition, the lengthy process of reforming and reorganizing the Ukrainian gas distribution system has led to a situation where the work of a natural gas distribution operator is facing a risk of imbalance in terms of inefficient standardization of the main areas of operation to meet the EU legislation requirements implemented in Ukraine. Therefore, to develop basic directions for the future work of gas infrastructure operators, it is necessary to take into account the acting capabilities of existing system for transportation, underground storage and gas distribution (taking into account the significant number of standardized indicators defined by the existing normative documents of the former USSR) and in accordance with the trends in the development of the European gas infrastructure introduce economically and technically feasible measures to standardize performance activities. Such works have to be incorporated into integrated research programs, during which regional and international trends are to be taken into account and adapted, the results of which will be the basis for future roadmaps and programs for the development of natural gas supply and distribution systems.

scholarly journals Study of the Effects of Changes in Gas Composition as Well as Ambient and Gas Temperature on Errors of Indications of Thermal Gas Meters

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5428 ◽  
Author(s):  
Jacek Jaworski ◽  
Adrian Dudek
Keyword(s):  
Natural Gas ◽  
Physicochemical Properties ◽  
Distribution System ◽  
Test Bench ◽  
Operating Conditions ◽  
Test Method ◽  
Gas Composition ◽  
Gas Temperature ◽  
Metrological Analysis ◽  
The Impact

Thermal gas meters represent a promising technology for billing customers for gaseous fuels, however, it is essential to ensure that measurement accuracy is maintained in the long term and in a broad range of operating conditions. The effect of hydrogen addition to natural gas will change the physicochemical properties of the mixture of natural gas and hydrogen. Such a mixture will be supplied through the gas system, to consumers, including households, where the amounts of received gas will be metered. The physicochemical properties of hydrogen, including the specific density or viscosity, differ significantly from those of the natural gas components, such as methane, ethane, propane, nitrogen, etc. Therefore, it is of utmost importance to establish the impact of the changes in the gas composition caused by the addition of hydrogen to natural gas on the metrological properties of household gas meters, including thermal gas meters. Furthermore, since household gas meters can be installed outdoors and, taking into account the fact that household gas meters are good heat exchangers, the influence of ambient and gas temperature on the metrological properties of those meters should be investigated. This article reviews a test bench and a testing method concerning errors of thermal gas meter indicators using air and natural gas, including the type containing hydrogen. The indication errors for thermal gas meters using air, natural gas and natural gas with an addition of 2%, 4%, 5%, 10% and 15% hydrogen were determined and then subjected to metrological analysis. Moreover, the test method and test bench are discussed and the results of tests on the impact of ambient and gas temperatures (‒25 °C and 55 °C, respectively) on the errors of indications of thermal gas meters are presented. Conclusions for distribution system operators in terms of gas meter selection were drawn based on the test results.

Insufficient supply in a natural gas distribution system: A risk analysis

1992 ◽  
Vol 56 (1) ◽  
pp. 41-53 ◽  
Author(s):  
Christoph Haehling von Lanzenauer ◽  
William G. James ◽  
Don D. Wright
Keyword(s):  
Natural Gas ◽  
Risk Analysis ◽  
Distribution System ◽  
Gas Distribution ◽  
System A
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