Detecting Optimal Leak Locations Using Homotopy Analysis Method for Isothermal Hydrogen-Natural Gas Mixture in an Inclined Pipeline

Chaharborj, Sarkhosh Seddighi; Ismail, Zuhaila; Amin, Norsarahaida

doi:10.3390/sym12111769

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…By solving the flow equation of hydrogen in an inclined pipeline using homotopy analysis methods, the location of hydrogen leakage in horizontal or inclined pipelines can be determined. With high accuracy and strong universality, it is suitable for various pipeline hydrogen transportation . Unlike using a single algorithm, combining various optimization algorithms such as particle swarm optimization algorithms, genetic algorithms, and simulated annealing algorithms for estimation of leakage location, leakage level, wind direction, and wind speed can help achieve both accuracy and computational efficiency simultaneously …”

Section: Leakage Diagnosismentioning

confidence: 99%

Comprehensive Review of Hydrogen Leakage in Relation to Fuel Cell Vehicles and Hydrogen Refueling Stations: Status, Challenges, and Future Prospects

Hu,

Gao,

Cheng

et al. 2024

Energy Fuels

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As fuel cell vehicles (FCVs) are increasingly put on the market and hydrogen refueling stations (HRSs) are built accordingly, fatal accidents caused by explosion due to hydrogen leakage are reported and have become a critical issue. The explosion results from complicated processes associated with the so-called hydrogen jet and diffusion when the hydrogen leaks from FCVs or HRSs, demonstrating its sophisticated characteristics and presenting significant technical challenges. Recently, particularly in the past a few years, researchers have established a variety of theoretical models to reveal the relevant mechanisms and introduced a series of monitoring/diagnostic approaches to detect and control the relevant hazards. This comprehensive review summarizes the major research outcomes and particularly the state-of-the-art progresses in relation to hydrogen leakage in FCVs and HRSs, including (1) subsonic jets, (2) underexpanded jets, (3) hydrogen diffusion behavior, (4) hazard reduction methods for confined and free spaces, (5) four types of widely used hydrogen detection technologies, and (6) the application of hydrogen leakage diagnostic methods in different systems. An insight of the review is that research on hydrogen leakage related to FCVs and HRSs should be combined with the relevant realistic characteristics. The characteristics of hydrogen jets generated in real gaps are discussed, and hazard reduction methods are proposed based on the characteristics of hydrogen diffusion in different confined and free spaces. It is suggested that, in order to integrate and evaluate multiple sensor data points and more accurately determine the leakage location and the leakage level, artificial intelligence technologies could be introduced to resolve the issues encountered currently.

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Section: Leakage Diagnosismentioning

confidence: 99%

Comprehensive Review of Hydrogen Leakage in Relation to Fuel Cell Vehicles and Hydrogen Refueling Stations: Status, Challenges, and Future Prospects

Hu,

Gao,

Cheng

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Chaharborj et al in [8] have studied the paper titled "Detecting Optimal Leak Locations Using Homotopy Analysis Method for Isothermal Hydrogen-Natural Gas Mixture in an Inclined Pipeline". The aim of this article is to use the homotopy analysis method to pinpoint the optimal location of leakage in an inclined pipeline containing hydrogennatural gas mixture by obtaining quick and accurate analytical solutions for nonlinear transportation equations.…”

Section: Brief Overview Of the Contributionsmentioning

confidence: 99%