Quantitative risk assessment of a hydrogen refueling station by using a dynamic physical model based on multi-physics system-level modeling

Suzuki, Tomoya; Kawatsu, Kaname; Shiota, Kento; Izato, Yu‐ichiro; Komori, Masahiro; Sato, Kōichi; Takai, Yasuyuki; Ninomiya, Takayuki; Miyake, Akira

doi:10.1016/j.ijhydene.2021.09.125

Cited by 23 publications

(8 citation statements)

References 29 publications

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“…The core quantitative index of quantitative risk assessment is individual risk. Individual risk refers to the individual death probability of the person whose hazard source is generated at a fixed location, which is reflected as the risk contours [ 51 , 52 ]. The calculation process of individual risk is shown in Figure 2 .…”

Section: Methodsmentioning

confidence: 99%

Study on Dynamic Probability and Quantitative Risk Calculation Method of Domino Accident in Pool Fire in Chemical Storage Tank Area

Meng

Wei

Zhou

et al. 2022

IJERPH

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The domino event caused by fire is one of the common accidents in hydrocarbon storage tank farms, which further expands the severity and scope of the accident. Due to the different failure sequence of the storage tanks in a domino accident, the radiant heat generated by the failed storage tank to the target tank is different. Based on the influence of this synergistic effect, this study combined the Monte Carlo algorithm and FSEM, and proposed a fast real-time probability calculation method for a fire domino accident in a storage tank area, for the first time. This method uses the Monte Carlo algorithm to simulate all accident scenarios, and obtains the evolution of multiple escalation fire domino accidents under the synergistic effect according to FSEM, and then calculates the real-time failure probability and risk. Based on a comprehensive analysis of the accident propagation path, this method avoids the problem of a large amount of calculation, and is conducive to the rapid and effective analysis of the fire risk in a storage tank area and the formulation of corresponding risk reduction measures. The effectiveness and superiority of the proposed method were proved by a case study.

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Section: Methodsmentioning

confidence: 99%

Study on Dynamic Probability and Quantitative Risk Calculation Method of Domino Accident in Pool Fire in Chemical Storage Tank Area

Meng

Wei

Zhou

et al. 2022

IJERPH

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“…To more accurately measure risk, it is necessary to consider CFD-based consequence analysis complemented with quantitative risk assessment in the case of a complex system such as hybrid refueling stations [31]. At present, risk analysis of hydrogen infrastructure has been carried out with qualitative [28,[32][33][34], quantitative [7,24,35,36], and integrated methods [37][38][39][40] that include traditional risk-assessment approaches such as FMEA, HA-ZOP, and Bayesian Network models. In these approaches, two parameters are important, accident frequency and consequences, and these approaches tend to assume that risk is positively related to the probability of accidents and the severity of the consequences [30].…”

Section: Introductionmentioning

confidence: 99%

Risk Analysis of Fire and Explosion of Hydrogen-Gasoline Hybrid Refueling Station Based on Accident Risk Assessment Method for Industrial System

Kong

et al. 2023

Fire

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Hydrogen–gasoline hybrid refueling stations can minimize construction and management costs and save land resources and are gradually becoming one of the primary modes for hydrogen refueling stations. However, catastrophic consequences may be caused as both hydrogen and gasoline are flammable and explosive. It is crucial to perform an effective risk assessment to prevent fire and explosion accidents at hybrid refueling stations. This study conducted a risk assessment of the refueling area of a hydrogen–gasoline hybrid refueling station based on the improved Accident Risk Assessment Method for Industrial Systems (ARAMIS). An improved probabilistic failure model was used to make ARAMIS more applicable to hydrogen infrastructure. Additionally, the accident consequences, i.e., jet fires and explosions, were simulated using Computational Fluid Dynamics (CFD) methods replacing the traditional empirical model. The results showed that the risk levels at the station house and the road near the refueling area were 5.80 × 10−5 and 3.37 × 10−4, respectively, and both were within the acceptable range. Furthermore, the hydrogen dispenser leaked and caused a jet fire, and the flame ignited the exposed gasoline causing a secondary accident, considered the most hazardous accident scenario. A case study was conducted to demonstrate the practicability of the methodology. This method is believed to provide trustworthy decisions for establishing safe distances from dispensers and optimizing the arrangement of the refueling area.

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“…In that case, the probability of hydrogen leakage and ignition in for HRSs can be given by a bayesian method [1] , and the safety of different layouts of HRS can be analyzed based on the risk matrix method [2] . Following the similar method, the quantitative risk assessment were carried out, with respect to the design, operation and maintenance of for various HRSs [3][4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Safety evaluation on devices of high-pressure hydrogen refueling stations

Shi

He²,

Wang³

2023

J. Phys.: Conf. Ser.

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Hydrogen refuelling stations are established in various places nowadays. With the development on the hydrogen refuelling under higher pressures, the risk of hydrogen leakage on the devices, specifically the compressor and the dispenser, draws increasing concerns for these stations. In this paper, different cases of hydrogen leakage and combustion are evaluated for these devices with respect to various conditions, based the prototypes designed for a high-pressure hydrogen refuelling station in China. The results show that the limited hydrogen flow in the compressor ensures that no serious accident will occur after leakage. As for the dispenser, the cases for internal leakage on the main tube and the external leakage on the nozzle hose are studied and compared. According to the results, the harmful and lethal distances are obtained. Also, the effect of wind speed on the gas diffusion field and the temperature field are quantified by the simulation. It can be stated that the severity of ignition will increase with consideration of the wind. The results can be beneficial to the timely detection of the possible hydrogen leakage of the devices, and to the optimized layouts for the design of stations.

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Quantitative risk assessment of a hydrogen refueling station by using a dynamic physical model based on multi-physics system-level modeling

Cited by 23 publications

References 29 publications

Study on Dynamic Probability and Quantitative Risk Calculation Method of Domino Accident in Pool Fire in Chemical Storage Tank Area

Study on Dynamic Probability and Quantitative Risk Calculation Method of Domino Accident in Pool Fire in Chemical Storage Tank Area

Risk Analysis of Fire and Explosion of Hydrogen-Gasoline Hybrid Refueling Station Based on Accident Risk Assessment Method for Industrial System

Safety evaluation on devices of high-pressure hydrogen refueling stations

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