Materials aspects associated with the addition of up to 20 mol% hydrogen into an existing natural gas distribution network

2020 ◽  
Author(s):  
K. Birkitt ◽  
M. Loo-Morrey ◽  
C. Sanchez ◽  
L. O'Sullivan
Keyword(s):  
Natural Gas ◽  
Distribution Network ◽  
Gas Distribution

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.

Cost saving allocation of horizontal cooperation in restructured natural gas distribution network

Kybernetes ◽  
2018 ◽  
Vol 47 (6) ◽  
pp. 1217-1241 ◽  
Author(s):  
Jafar Razmi ◽  
Anis Hassani ◽  
Ashkan Hafezalkotob
Keyword(s):  
Natural Gas ◽  
Cooperative Game ◽  
Distribution Network ◽  
Cost Savings ◽  
Gas Distribution ◽  
Content Type ◽  
Horizontal Cooperation ◽  
Gas Market ◽  
Yazd City ◽  
The Cost

Purpose Over the past two decades, in developed countries a trend towards the liberalization and restructuring of the gas market has been observed. Today, restructuring is an ongoing process. In this study, a restructured natural gas market has been considered in which several regional distribution companies have ownership of the network and are competing against each other to gain more benefits. The main purpose of this study is to achieve efficiency and economic rationality in such a market through horizontal cooperation. Design/methodology/approach A restructured natural gas distribution network is modeled as a cooperative game to estimate the potential cost savings for various collaboration scenarios. In addition, the cost savings’ allocation among collaborating companies is evaluated using the cooperative game theory. Findings The results reveal validity and efficiency of the solution of the proposed model and capabilities of the cooperative game theory for reduction in gas distribution costs and improvement in the service level. Research limitations/implications This study is limited to natural gas in one region of Yazd City in Iran. Moreover, one segment of the natural gas network (i.e. distribution network) is modeled. Moreover, long-term cooperation between companies relies on fair distribution of cooperation benefits to the participants. Practical implications For the purpose of comparison and to get an insight into properties of the cost savings game, the real case study of one region of Yazd city in Iran is implemented. Originality/value This study contributes to the competitive models in the restructured gas market, particularly, in gas distribution network. The main contribution is to provide potential benefits for the participants via the horizontal cooperation.

Problems of Restructurisation and Renewal of Old Gas Distribution Network in Wroclaw

1996 ◽  
Author(s):  
Jan Rygier
Keyword(s):  
Natural Gas ◽  
Rapid Growth ◽  
Distribution Network ◽  
Gas Pipelines ◽  
Gas Distribution ◽  
Changing Environment ◽  
The City ◽  
Urgent Necessity

Changing environment, growing demand for gas for heating, and shut down of old gas plant, cause necessity of restructurisation of the old gas distribution network in the city. Aging distribution network, replacement of manufactured gas by natural gas and rapid growth in number of leaks cause urgent necessity of replacement and rehabilitation of the old gas pipelines. Modern materials and technologies have enabled rehabilitation gas pipelines in the narrow busy streets of the city.

scholarly journals A Gas Distribution Network Hydraulic Problem from Practice

2017 ◽  
Author(s):  
D. Brikić
Keyword(s):  
Natural Gas ◽  
Friction Factor ◽  
Gas Flow ◽  
Optimization Problem ◽  
Distribution Network ◽  
Gas Distribution ◽  
Pipeline Network ◽  
Hardy Cross ◽  
Selection Of

Accent is on determination of appropriate friction factor, and on selection of representative equation for natural gas flow under presented conditions in the network. Calculation of presented looped gas-pipeline network is done according to principles of Hardy Cross method. The final flows were calculated, for known pipes diameters and nodes consumptions while the flow velocities through pipes have to stand below certain values. In optimization problem flows are treated as constant, while the diameters are variables.

Optimization of a natural gas distribution network with potential future extensions

Energy ◽  
2017 ◽  
Vol 125 ◽  
pp. 848-859 ◽  
Author(s):  
Markéta Mikolajková ◽  
Carl Haikarainen ◽  
Henrik Saxén ◽  
Frank Pettersson
Keyword(s):  
Natural Gas ◽  
Distribution Network ◽  
Gas Distribution

scholarly journals Waste Energy Recovery from Natural Gas Distribution Network: CELSIUS Project Demonstrator in Genoa

2015 ◽  
Vol 7 (12) ◽  
pp. 16703-16719 ◽  
Author(s):  
Davide Borelli ◽  
Francesco Devia ◽  
Margherita Marré Brunenghi ◽  
Corrado Schenone ◽  
Alessandro Spoladore
Keyword(s):  
Natural Gas ◽  
Energy Recovery ◽  
Distribution Network ◽  
Gas Distribution ◽  
Waste Energy

A real option assessment of flexibilities in the integrated planning of natural gas distribution network and distributed natural gas-fired power generations

Energy ◽  
2018 ◽  
Vol 143 ◽  
pp. 257-272 ◽  
Author(s):  
Babatunde Odetayo ◽  
John MacCormack ◽  
W.D. Rosehart ◽  
Hamidreza Zareipour
Keyword(s):  
Natural Gas ◽  
Real Option ◽  
Distribution Network ◽  
Integrated Planning ◽  
Gas Distribution
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