Analysis of electrical interference from power lines to gas pipelines. I. Computation methods

The National Energy Board (NEB) is a Canadian federal regulatory agency whose mandate under the NEB Act is to regulate the construction and operation of interprovincial and international oil, gas and commodity pipelines; the construction and operation of international and designated interprovincial power lines; the setting of tolls and tariffs for oil and gas pipelines under its jurisdiction; the export of oil, natural gas and electricity, and the import of natural gas. International and interprovincial pipelines are subject to the statutory requirements of the NEB Act and Regulations made by the NEB. The regulations typically incorporate consensus standards such as the Canadian Standards Association (CSA Z662 - Oil and Gas Pipeline Systems). The NEB tracks and monitors compliance to ensure that companies fulfill the requirements of the Act and Regulations as well as any conditions imposed at the time of approval of the facilities. In carrying out its mandate, the NEB promotes the safety of people, the protection of property and the environment, and economic efficiency in the Canadian public interest. Recently, the NEB has implemented a formal system to track and monitor compliance. In approving new projects, the NEB imposes conditions outlined in approval Orders and Certificates. It then tracks these conditions for compliance, completeness and effectiveness. The compliance information is gathered mainly from activities such as inspections, audits and company filings. This paper explores in greater detail the NEB’s role in terms of tracking and monitoring compliance, NEB expectations of regulated companies and the effectiveness of a self-reporting condition. It also discusses the advantages for companies to be in compliance and its importance.

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Optimal Planning of Integrated Energy Systems Based on Coupled CCHP

Energies ◽

10.3390/en11102621 ◽

2018 ◽

Vol 11 (10) ◽

pp. 2621 ◽

Cited By ~ 6

Author(s):

Xiaofeng Dong ◽

Chao Quan ◽

Tong Jiang

Keyword(s):

Power Generation ◽

Energy Use ◽

Clean Energy ◽

Energy System ◽

Power Lines ◽

Gas Pipelines ◽

Integrated Energy Systems ◽

Integrated Energy System ◽

Gas Price ◽

Combined Cooling

With the widespread attention on clean energy use and energy efficiency, the integrated energy system (IES) has received considerable research and development. This paper proposed an electricity-gas IES optimization planning model based on a coupled combined cooling heating and power system (CCHP). The planning and operation of power lines and gas pipelines are considered. Regarding CCHP as the coupled hub of an electricity-gas system, the proposed model minimizes total cost in IES, with multistage planning and multi-scene analyzing. Renewable energy generation is also considered, including wind power generation and photovoltaic power generation. The numerical results reveal the replacing and adding schemes of power lines and gas pipelines, the optimal location and capacity of CCHP. In comparison with conventional separation production (SP), the optimization model which regards CCHP as the coupled hub attains better economy. At the same time, the influence of electricity price and natural gas price on the quantities of purchasing electricity and purchasing gas in the CCHP system is analyzed. According to the simulation result, a benchmark gas price is proposed, which shows whether the CCHP system chooses power generation. The model results and discussion demonstrate the validity of the model.

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An introduction to the analysis of electrical interference from power lines to metal pipelines

Power Systems Modelling and Fault Analysis ◽

10.1016/b978-0-12-815117-4.00012-6 ◽

2019 ◽

pp. 835-861

Author(s):

Nasser Tleis

Keyword(s):

Power Lines ◽

Electrical Interference

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A Proposed Geotechnical Risks Management Plan for Pipeline Integrity

ASME 2013 International Pipeline Geotechnical Conference ◽

10.1115/ipg2013-1942 ◽

2013 ◽

Author(s):

Hudson Régis Oliveira

Keyword(s):

Management Plan ◽

Power Lines ◽

Gas Pipelines ◽

System Integrity ◽

Oil Pipelines ◽

Integrity Management ◽

Managing System ◽

Geotechnical Problems ◽

Very High ◽

Geotechnical Risk

Linear works, such as highways, power lines, gas and oil pipelines among others, as well as other types of engineering works can be threaten by natural hazards, such as landslides, floods, erosions, earthquakes, hurricanes, seaquakes and others, which could lead to great environmental impacts, very high sum of money lost and even deaths. Aiming to reduce geological and geotechnical risks, preventive or corrective actions can be executed from the design phase to the operational and maintenance stages in pipelines. In this last phase, an integrity management plan of these facilities can be adopted, with the purpose of mitigating residual risks that had not been covered on the design and construction phases. One of the alternatives to implement an integrity management of gas pipelines is found in the code “Managing System Integrity of Gas Pipelines” – ASME B31.8S (2005). However, this code has some limitations in actions concerning to prevention, identification and correction of geological and geotechnical problems. This paper presents information about geotechnical risks in transmission pipelines and tools applied in identification, prevention and correction of geotechnical problems in pipelines, as well as, others with potential to be applied in pipelines. A basic pipeline integrity management plan focused in geotechnical risks is proposed in the paper, transcribed as a contribution to ASME B31.8S Code. This plan is composed by actions: from identification, prevention, evaluation and analysis to correction of geotechnical instabilities in pipelines. The plan is composed by a flowchart with all actions selected for the geotechnical risk care. The plan was developed based on directions set in ASME B31.8S Code, together with Brazilian, Italian and Canadian experiences.

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