Multidimensional risk assessment and categorization of hydrogen pipelines

Viana, Francisco Filipe Cunha Lima; Alencar, Marcelo Hazin; Ferreira, Rodrigo José Pires; Almeida, Adiel Teixeira de

doi:10.1016/j.ijhydene.2022.04.057

Cited by 13 publications

(14 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is noteworthy that the characteristic factor 𝑑 𝑝 is employed, which is consistent with Equations ( 1) and (2). It is to be noted that in Equation (10), the unit of d is mm, the unit of p is MPa, and the unit of r is m. As shown in Figure 3, the new proposed correlation Equation (10) agrees well with the data, with an R square of 0.995. One should note that the applicability of the proposed model is limited to the calculation of the potential impact radius for the hydrogen pipelines.…”

Section: Potential Impact Radius For Hydrogen Pipelinessupporting

confidence: 70%

“…Similarly, for a given operating pressure, the potential impact radius increases with the augmentation of the pipeline diameter. Notably, the potential impact radius calculated by Equation (2) appears consistently smaller than that obtained from Equation (10). It is However, Equation ( 8) is relatively intricate compared to Equation ( 2), making it less suitable for swift industrial calculations.…”

Section: Resultsmentioning

confidence: 87%

“…The curved lines indicate the results calculated by the weighted multi-source model. In total, 59 experimental data points from previous works are used to validate Equation (10). Nineteen data points are derived from the experimental condition when the leakage diameter is 3.175 mm and the initial pressure is 15.3 MPa [27]; these are the black hollow triangles is Figure 1.…”

Section: Flame Radiation Modelmentioning

confidence: 99%

“…In the event of a leak, the ignition of hydrogen poses a potential threat, as its low ignition energy, high flame speed, wide flammable limits, and elevated combustion heat make it susceptible to fire or explosion. Risk assessment has become a widely employed approach for evaluating the hazards associated with hydrogen systems, with numerous studies focusing on hydrogen stations, vehicles, pipelines, and other highpressure hydrogen systems [4][5][6][7][8][9][10][11][12]. While many prior investigations concentrated on hazard analysis, some delved into quantitative risk assessment (QRA).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Model for Assessing the Potential Impact Radius of Hydrogen Pipelines Based on Jet Fire Radiation

Lin,

Yu,

Liu

et al. 2024

Fire

View full text Add to dashboard Cite

The accurate determination of the potential impact radius is crucial for the design and risk assessment of hydrogen pipelines. The existing methodologies employ a single point source model to estimate radiation and the potential impact radius. However, these approaches overlook the jet fire shape resulting from high-pressure leaks, leading to discrepancies between the calculated values and real-world incidents. This study proposes models that account for both the mass release rate, while considering the pressure drop during hydrogen pipeline leakage, and the radiation, while incorporating the flame shape. The analysis encompasses 60 cases that are representative of hydrogen pipeline scenarios. A simplified model for the potential impact radius is subsequently correlated, and its validity is confirmed through comparison with actual cases. The proposed model for the potential impact radius of hydrogen pipelines serves as a valuable reference for the enhancement of the precision of hydrogen pipeline design and risk assessment.

show abstract

Section: Potential Impact Radius For Hydrogen Pipelinessupporting

confidence: 70%

Section: Resultsmentioning

confidence: 87%

Section: Flame Radiation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Model for Assessing the Potential Impact Radius of Hydrogen Pipelines Based on Jet Fire Radiation

Lin,

Yu,

Liu

et al. 2024

Fire

View full text Add to dashboard Cite

show abstract

“…[122] evaluated the damage of high pressure hydrogen pipeline explosion to building structure with pressure pulse diagram signify XXXX. Based on the utility theory and the ELECTRE TRI method, Viana et al [123] proposed a dimensional risk model and a probability model, and classified the hydrogen pipeline sections according to the risk level, so as to bring the risk analysis elements into the assessment of unexpected situations, probabilities and consequences. Li et al [124] used the CFD method to establish a three-dimensional model to simulate the diffusion behavior of hydrogen-containing natural gas released from the transmission pipeline, predict the development process of combustible gas cloud, and evaluate the dangerous area generated by the hydrogen-natural gas mixture.…”

Section: Research On Prediction and Assessment Of Hydrogen Fire And E...mentioning

confidence: 99%

A review on hazards and risks to pipeline operation under transporting hydrogen energy and hydrogen-mixed natural gas

Li,

Song,

Zhang

2024

Sci. Tech. Energ. Transition

View full text Add to dashboard Cite

As an efficient and clean fuel, hydrogen energy plays an important role in relieving the energy crisis and achieving the ori-entation of zero carbon emissions. Transportation is the key link in the construction of hydrogen energy infrastructure. For large-scale and long-distance transportation of hydrogen, pipeline transportation has the advantages of high efficiency and cost saving. While using the existing natural gas pipeline to transport hydrogen, it would economize the economic cost, time cost and labor cost. However, the transportation of hydrogen may bring more hazards and risks. Based on the investigation of a large number of literatures, the research advance in hydrogen embrittlement, leakage, combustion and explosion risk of hydrogen and hydrogen-mixed natural gas pipelines was reviewed. The mechanism, research means and evaluation meth-ods of hydrogen embrittlement, as well as the experimental and numerical simulation research results of leakage, combus-tion and explosion were discussed in detail. The definite and important conclusions include: (1) For buried hydrogen-mixed natural gas transportation pipeline, the leakage rate of hydrogen and methane is the same, the formation of the leakage crater is foreign to the nature of leakage gas. (2) When adding less than 25 volume percentage of hydrogen into the natural gas pipelines, the explosion risk would not be increased. Future research should focus on the risk prediction, quantitative risk assessment, intelligent monitoring, and explosion-suppression technical measures of hydrogen and hydrogen-mixed natural gas transportation pipelines, so as to establish comprehensive and multi-level pipeline safety protection barriers.

show abstract

Fuelling the Future with Safe Hydrogen Transportation Through Natural Gas Pipelines: A Quantitative Risk Assessment Approach

Amer,

Hoseyni,

Cordiner

2024

Trans Indian Natl. Acad. Eng.

View full text Add to dashboard Cite

The global transition to clean and sustainable energy sources has sparked interest in hydrogen as a potential solution to reduce greenhouse gas emissions. Efficient and safe transportation of hydrogen is crucial for its integration into the energy network. One approach is utilizing existing natural gas infrastructure, but it introduces unique challenges. Hydrogen has distinct characteristics that pose potential hazards, requiring careful consideration for safe transportation through natural gas pipelines. Moreover, the absence of field data on component failure rates adds to the existing uncertainty in Quantitative Risk Assessment (QRA) for hydrogen transportation. QRA plays a vital role in enabling the safe deployment of hydrogen transportation through existing pipelines and is increasingly integrated into the permitting process. The lack of data impedes the comprehensive understanding of risks associated with hydrogen transportation. This paper aims not only to analyse the effects of hydrogen blending ratios on gas dispersion, release rates, jet fires, and explosions in natural gas pipelines, but also highlight the disparities in leak frequencies currently used for hydrogen or blended hydrogen. A QRA for hydrogen blending in natural gas pipelines is novel and timely because the behaviour of hydrogen in natural gas pipelines, a novel process with potential hazards, is not fully understood. Conducting a thorough QRA on hydrogen blending in gas pipelines, our study reveals innovative insights: higher blending ratios reduce release rates, impact safe distances, and maintain stable flame lengths. Despite an elevated explosion risk, scenarios remained below lethal overpressure values. This paper offers unique contributions to safety considerations in hydrogen transportation, guiding stakeholders toward informed decisions for a secure and sustainable energy future.

show abstract

Multidimensional risk assessment and categorization of hydrogen pipelines

Cited by 13 publications

References 65 publications

A Model for Assessing the Potential Impact Radius of Hydrogen Pipelines Based on Jet Fire Radiation

A Model for Assessing the Potential Impact Radius of Hydrogen Pipelines Based on Jet Fire Radiation

A review on hazards and risks to pipeline operation under transporting hydrogen energy and hydrogen-mixed natural gas

Fuelling the Future with Safe Hydrogen Transportation Through Natural Gas Pipelines: A Quantitative Risk Assessment Approach

Contact Info

Product

Resources

About