Results 11 to 20 of about 7,265 (258)

Research on optimization technology of new pipeline design for regional natural gas pipeline network

open access: yesYou-qi chuyun
ObjectiveThe pipeline network has been continuously expanding to accommodate the increasing number of natural gas users and the rising gas consumption. However, the complex structure of the pipeline network, along with the diverse characteristics of gas ...
Jingyi CUI   +6 more
doaj   +2 more sources

Review of optimization modeling and solution of long-distance natural gas pipeline network

open access: yesYou-qi chuyun, 2023
The optimization of the natural gas pipeline network is of great significance to reduce the operating cost of the pipeline network and improve the reliability of the natural gas supply.
Peng ZHOU, Qi WEI
doaj   +1 more source

Dynamic Prediction of Natural Gas Calorific Value Based on Deep Learning

open access: yesEnergies, 2023
The natural gas quality fluctuates in complex natural gas pipeline networks, because of the influence of the pipeline transmission process, changes in the gas source, and fluctuations in customer demand in the mixing process.
Jingjing Hu, Zhaoming Yang, Huai Su
doaj   +1 more source

Combined flow prediction model for natural gas pipeline network based on EMD-Attention-GRU

open access: yesYou-qi chuyun, 2023
In order to overcome the deficiency of the traditional time series prediction method in flow prediction of natural gas pipeline networks, a combined prediction model based on Empirical Mode Decomposition (EMD), Attention and Gated Recurrent Unit (GRU ...
Jiacheng MEN   +4 more
doaj   +1 more source

The Simulation of Natural Gas Gathering Pipeline Network [PDF]

open access: yesThe Open Fuels & Energy Science Journal, 2013
This paper focuses on developing a simulation model for the analysis of natural gas gathering pipeline network system. The simulation mathematical model of the pipeline element and non-pipeline element in natural gas pipeline network is established, the implicit difference method is used to change the partial differential model into the finite ...
Peng Shanbi   +3 more
openaire   +1 more source

A systematic framework of vulnerability analysis of a natural gas pipeline network [PDF]

open access: yesReliability Engineering & System Safety, 2018
A systematic framework is developed to assess the vulnerability of natural gas pipeline networks. To measure the impact of accidents on gas supply service, a consequence model is developed based on a flow algorithm embedded into an optimization scheme, with the consideration of physical constraints.
Huai Su   +3 more
openaire   +3 more sources

New method for the transient simulation of natural gas pipeline networks based on the fracture-dimension-reduction algorithm

open access: yesNatural Gas Industry B, 2023
The transient simulation technology of natural gas pipeline networks plays an increasingly prominent role in the scheduling management of natural gas pipeline network system.
Qiao Guo   +5 more
doaj   +1 more source

Effects of hydrogen blending on hydraulic and thermal characteristics of natural gas pipeline and pipe network

open access: yesOil & Gas Science and Technology, 2021
Blending a fraction of hydrogen into the natural gas pipeline or urban pipe network is an efficient approach for hydrogen delivery. In this paper, the mathematical model of Hydrogen-Blended Natural Gas (HBNG) transportation is established, and the ...
Zhang Heng   +4 more
doaj   +1 more source

GPU-accelerated hydraulic simulations of large-scale natural gas pipeline networks based on a two-level parallel process

open access: yesOil & Gas Science and Technology, 2020
The numerical simulation efficiency of large-scale natural gas pipeline network is usually unsatisfactory. In this paper, Graphics Processing Unit (GPU)-accelerated hydraulic simulations for large-scale natural gas pipeline networks are presented. First,
Xiang Yue   +3 more
doaj   +1 more source

Influence of low load rate of provincial natural gas pipeline network in North China on terminal cost

open access: yesYou-qi chuyun, 2021
The natural gas pipeline network in North China is well developed, and the demand of natural gas is increasing day by day. However, "1+X" business mode was formed in the intermediate links of transportation by the provincial short-distance pipeline ...
Zishu GAO   +3 more
doaj   +1 more source

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