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.  

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 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.

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

Theoretical Model for the Power Recovery Optimization in Natural Gas Distribution Networks: Colombian Case

2013 ◽  
Author(s):  
Lesme A. Corredor Martínez ◽  
Diego J. Guillen Pérez ◽  
Luz A. Castellón Pineda ◽  
David A. González Fernández ◽  
Alberto M. Palacio Bastos
Keyword(s):  
Theoretical Model ◽  
Natural Gas ◽  
Distribution Networks ◽  
Gas Distribution ◽  
Power Recovery

Dynamic pricing in electricity and natural gas distribution networks: An EPEC model

Energy ◽  
2020 ◽  
Vol 207 ◽  
pp. 118138 ◽  
Author(s):  
Sheng Chen ◽  
Guoqiang Sun ◽  
Zhinong Wei ◽  
Dan Wang
Keyword(s):  
Natural Gas ◽  
Dynamic Pricing ◽  
Distribution Networks ◽  
Gas Distribution

scholarly journals Thermodynamic and Economic Feasibility of Energy Recovery from Pressure Reduction Stations in Natural Gas Distribution Networks

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4453 ◽  
Author(s):  
Piero Danieli ◽  
Gianluca Carraro ◽  
Andrea Lazzaretto
Keyword(s):  
Natural Gas ◽  
Energy Recovery ◽  
Internal Combustion Engines ◽  
Large Scale ◽  
Net Present Value ◽  
Energy Content ◽  
Distribution Networks ◽  
Economic Feasibility ◽  
Pressure Reduction ◽  
Gas Distribution

A big amount of the pressure energy content in the natural gas distribution networks is wasted in throttling valves of pressure reduction stations (PRSs). Just a few energy recovery systems are currently installed in PRSs and are mostly composed of radial turboexpanders coupled with cogeneration internal combustion engines or gas-fired heaters providing the necessary preheating. This paper clarifies the reason for the scarce diffusion of energy recovery systems in PRSs and provides guidelines about the most feasible energy recovery technologies. Nine thousand PRSs are monitored and allocated into 12 classes, featuring different expansion ratios and available power. The focus is on PRSs with 1-to-20 expansion ratio and 1-to-500 kW available power. Three kinds of expanders are proposed in combination with different preheating systems based on boilers, heat pumps, or cogeneration engines. The goal is to identify, for each class, the most feasible combination by looking at the minimum payback period and maximum net present value. Results show that small size volumetric expanders with low expansion ratios and coupled with gas-fired heaters have the highest potential for large-scale deployment of energy recovery from PRSs. Moreover, the total recoverable energy using the feasible recovery systems is approximately 15% of the available energy.

Resilience-Based Design of Natural Gas Distribution Networks

2015 ◽  
Vol 21 (1) ◽  
pp. 05014005 ◽  
Author(s):  
G. P. Cimellaro ◽  
O. Villa ◽  
M. Bruneau
Keyword(s):  
Natural Gas ◽  
Distribution Networks ◽  
Gas Distribution

Environmental impacts of natural gas distribution networks within urban neighborhoods

2009 ◽  
Vol 86 (10) ◽  
pp. 1915-1924 ◽  
Author(s):  
Jordi Oliver-Solà ◽  
Xavier Gabarrell ◽  
Joan Rieradevall
Keyword(s):  
Natural Gas ◽  
Environmental Impacts ◽  
Distribution Networks ◽  
Urban Neighborhoods ◽  
Gas Distribution
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