Results 21 to 30 of about 23,902 (268)

Accelerated mining method for salt-cavern gas storage

open access: yesYou-qi chuyun, 2020
Underground gas storage, which serves as the auxiliary facility of the nature gas pipeline network, is veryimportant to maintain the stability of gas supply. In recent years, the construction of underground gas storage developsrapidly in China.
Jun HE   +4 more
doaj   +1 more source

Gas flow in pipeline networks

open access: yesNetworks & Heterogeneous Media, 2006
We introduce a model for gas flow in pipeline networks based on the isothermal Euler equations. We model the intersection of multiple pipes by posing an additional assumption on the pressure at the interface. We give a method to obtain solutions to the gas network problem and present numerical results for sample networks.
Mapundi K. Banda   +2 more
openaire   +1 more source

Development status and improvement strategy of in-line inspection technology and management

open access: yesYou-qi chuyun, 2020
Pipeline defects have always been the dominant factor leading to pipeline failure. Using in-line inspectiontechnology to inspect and identify various pipeline defects has become a widely acknowledged practice in Chinaand abroad.
Zhiping WU   +5 more
doaj   +1 more source

Research on market products and economic analysis of underground gas storage in China

open access: yesYou-qi chuyun, 2021
With the official operation of China Oil & Gas Piping Network Corporation and the encouragement and support of national policies for the marketization of underground gas storage, the design of market storage products has become an inevitable demand for ...
Kai LI, Jieqiong GUO, Tao ZHOU
doaj   +1 more source

Development and outlook of China's pipeline transportation technologies under energy security strategy

open access: yesYou-qi chuyun, 2022
With the continuous development of pipeline industry in China, the third generation of pipeline technology system, represented by China–Russia Eastern Gas Pipeline, has been established, and China's overall technical level of using pipeline for energy ...
Jian-lin DING, Xin XI, Dui-hong ZHANG
doaj   +1 more source

Intelligent risk management and control measures for buried metal pipeline under strong DC interference

open access: yesYou-qi chuyun, 2020
Under the influence of high voltage direct current transmission (HVDC), urban rail transit and other DC systems, the buried metal pipelines nearby may be subject to strong DC interference and high pipe-to-ground voltage may be resultedin, which may lead ...
Yong LIU   +3 more
doaj   +1 more source

Study on the multi-objective optimization of reliability and operating cost for natural gas pipeline network

open access: yes, 2021
The development of natural gas pipeline network towards larger scale and throughput has urged better reliability of the pipeline network to satisfy transportation requirement.
Peng Wang   +13 more
core   +1 more source

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

open access: yes, 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 ...
Peng Wang   +9 more
core   +1 more source

Load forecasting of urban gas users in West-to-East Gas Pipeline System

open access: yesYou-qi chuyun, 2021
In order to realize the intelligent distribution function of natural gas distribution stations in the construction of intelligent pipeline networks, load forecasting should be carried out for users, especially the urban gas users who are greatly affected
Yan WU   +5 more
doaj   +1 more source

Operation risk analysis for custody transfer of A-Du-Wu-Shan system and the PID parameter setting

open access: yesYou-qi chuyun, 2021
Aiming at the problems of untimely manual flow path switching under abnormal working conditions and long time required for pressure regulation through the PID control of the regulating valves of A-Du-Wu-Shan system, risk analysis was carried out for the ...
Yonggang LIN   +3 more
doaj   +1 more source

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