Study of natural gas pipeline behaviour

Radermacher, Ladislau; Mateescu, Theodor

doi:10.1088/1757-899x/586/1/012038

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…In the case of major earthquakes, the damage to gas networks [1] occurs frequently. The pipelines and/or fittings of both polyethylene and polypropylene [12], [13] often break because the polymeric materials are affected by exposure to soil factors, aging accelerators such as mechanical stress, microbiological activity, etc.…”

Section: Introductionmentioning

confidence: 99%

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Complex System for Earthquake Prediction and Protection of Gas Installations

Toader¹,

Ciogescu²,

Mihai³

et al. 2020

EEA

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In order to prevent explosions and fires caused by the ignition of uncontrolled gas leaks from damaged pipes following some devastating earthquakes, a complex system for earthquake prediction and protection of gas installations has been designed. The designed system ensures both the acquisition of data on local precursor parameters (evolution of radon emanations, evolution of earth's crust temperature, etc.) and local intensities of seismic events. Their transmission for processing to the national seismic dispatcher, thus contributing to a better knowledge in the earth physics field and implicitly to increase the accuracy of seismic predictions as well as 3D measurement of the local intensity of tectonic movements. In the case of seismic events with dangerous local intensity (above a pre-imposed, programmable threshold) the control signal is generated for the closure of gases by specialized aquatics (electrovalves mounted in front of the gas regulation/measurement block of the protected buildings). The system also ensures the take over and display of the information package about the state (closed / open) of the electrovalves mounted in front of the gas regulation / measurement block of the protected buildings. The 3D vibration transducer and the temperature transducer for the data acquisition system are mounted in a 40 m deep drilled well and the radon one on the surface (in the protection and visiting chimney of the well with transducers). Representative images regarding the realization/implementation of the system are presented. Compared to the known alert systems, the designed system requires little space for implementation and provides a number of advantages, such as: providing information on the evolution of precursor parameters of seismic movements in a given locality to the national seismic dispatcher, the level of knowledge in the field of Earth physics and the predictability of earthquakes; local validation of the intensity of tectonic movements in 3D and automatic closing in real time, without human intervention, of the gas connections in case of exceeding a pre-established dangerous threshold; revention of explosions and devastating fires following the damage of gas installations due to major earthquakes in a given locality (where the system is implemented), especially in public institutions, schools, boarding schools, hospitals, old people's homes, etc.

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Section: Introductionmentioning

confidence: 99%

“…The metallic ones [13], [17] are affected by various forms of corrosion [16]- [19]. As a result of uncontrolled gas leaks from gas networks affected by earthquakes, devastating explosions and fires frequently occur with consequences such as human casualties, material damage, major impact on the environment, etc.…”

Section: Introductionmentioning

confidence: 99%

Complex System for Earthquake Prediction and Protection of Gas Installations

Toader¹,

Ciogescu²,

Mihai³

et al. 2020

EEA

View full text Add to dashboard Cite

show abstract

“…In the case of major earthquakes, the gas networks are damaged -both polymeric [2], [3] and metal [2], [4] pipelines, especially those affected by various forms of corrosion [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

Prevention of Explosions and Fires caused by Earthquakes

Ciogescu¹,

Toader²,

Mihai³

et al. 2020

EEA

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Seismic warning and prediction systems based on precursor data packets were analysed aiming to develop a system to prevent explosions and fires caused by uncontrolled gas leaks following the deterioration of gas networks produced as a result of major seismic movements. At the current stage of knowledge, the accurate prediction in time and intensity of earthquakes is not possible. The simple information about a major earthquake, it is not a sufficient argument for shutting down gases over a large area. Closure of gases in buildings should only be done in the case of some tectonic movements that, on a local level (in that locality) exceed a certain pre-imposed threshold (considered dangerous). In this context, it is considered that an adequate seismic protection system for gas networks in a given locality must ensure: measuring /validating the intensity of local tectonic movementspreferably in 3D; generating a control signal for the closure of gases at the connections of buildings connected to the systemonly if the intensity of seismic movements in the locality exceeds an imposed level (considered dangerous); secure digital communication with autonomous UPS power supply between the place of measurement /evaluation of the intensity of local seismic movements and the execution aquatics (electrovalves mounted before the gas regulation /measurement block of the protected buildings).

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Study of natural gas pipeline behaviour

Cited by 2 publications

References 2 publications

Complex System for Earthquake Prediction and Protection of Gas Installations

Complex System for Earthquake Prediction and Protection of Gas Installations

Prevention of Explosions and Fires caused by Earthquakes

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